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EXAMINATION TICKETS
FOR CERTIFICATION OF PERSONNEL SERVICING
PRESSURE VESSELS
TICKET No. 1.
1.What responsibility do workers bear who are guilty of violating safety requirements and rules?
2.What kind of fittings are installed on vessels?
3. Actions of personnel in case of an accident or incident.
TICKET No. 2.
1. In what cases is a pressure gauge not allowed to be used?
3.What does technical examination of vessels include?
1. Actions of personnel when the pressure in the vessel increases above the permitted limit.
2.What working medium can be used to increase pressure during hydraulic testing.
3. The procedure for preparing a vessel for internal inspection.
TICKET No. 4
1. Actions of personnel in case of malfunction of safety valves.
2. “Lowest” and “highest” permissible levels of liquid in vessels.
3. Requirements for installing pressure gauges on the vessel.
TICKET No. 5
1.Who sets the holding time for a vessel under test pressure?
2.What devices is equipped with the vessel you are servicing to control its operation and ensure safe operating conditions?
3. Cases of vessel emergency stop?
1. Conducting hydraulic testing of vessels.
2. What accuracy class should pressure gauges have at a vessel operating pressure of up to 25 kgf/cm2.
3.Who can be allowed to operate vessels?
1.What fittings should the vessel be equipped with to control operation and ensure safe operating conditions?
2. In what cases are pressure gauges not allowed for use?
3.How many positions does the three-way valve have and where is it installed?
TICKET No. 8
1. Responsibility of operating personnel for failure to comply with the requirements of the instructions for the operating mode and safe maintenance of vessels.
2.Who carries out technical inspection of both registered and not subject to registration with the Gosgortekhnadzor bodies at enterprises?
3.What are the requirements for installing liquid level indicators on vessels?
1.What kind of fittings should liquid level indicators be equipped with and the procedure for monitoring their serviceability?
2. How many times during a shift must maintenance personnel check the serviceability of all pressure gauges?
3. The procedure for checking the serviceability of safety valves of vessels.
TICKET No. 10
I. In what cases are pressure gauges not allowed for use?
2. In what cases is an extraordinary technical examination of vessels carried out?
3. In what cases is an extraordinary test of knowledge of personnel servicing pressure vessels carried out?
TICKET No. 11
1.What does technical examination of vessels include?
2. What is the established frequency of state verification of pressure gauges with their sealing and branding?
3. In what cases, after external and internal inspections, is the vessel not allowed for further operation?
TICKET No. 12
1.Who issues a permit to commission a vessel that is not subject to registration with the Gosgortekhnadzor authorities?
2.What is the established frequency for checking working pressure gauges by the owner of the vessels using a control pressure gauge?
3.How many safety valves should be installed on pressure vessels?
TICKET No. 13
1. Basic safety requirements when repairing a vessel.
2. Cases of vessel emergency stop.
3.Name what shut-off devices and instrumentation the vessel you are servicing is equipped with.
TICKET No. 14
1.Deaerator device.
2. The procedure for accepting and handing over a shift.
3. Reasons for emergency shutdown of the vessel.
TICKET No. 15
1. The procedure for preparing a vessel for external and internal inspection.
2. Action of personnel in the event of a fire that directly threatens a vessel under pressure.
3.What lamps should be used for internal inspection, repair and cleaning of vessels?
TICKET No. 16
1. In what cases are liquid level indicators installed on vessels?
2. Construction of high and low pressure heaters, receivers.
3.Types of safety valves installed on vessels.
TICKET No. 17
1. Purpose of the siphon tube and three-way valve installed in front of the pressure gauge.
2.What devices can be installed on vessels if it is necessary to control the level of liquid that has a medium interface?
3. Is it allowed to tighten bolts when there is pressure in the vessel?
TICKET No. 18
1. What accuracy class should pressure gauges have when the operating pressure in the vessel is above
25 kgf/cm2?
2.What should be the height of the transparent element of the liquid level indicator, not exceeding the permissible limits for measuring liquid in the vessel?
3. Pressure adjustment of safety valves of vessels and timing of their implementation.
TICKET No. 19
1. Cases of vessel emergency stop.
2.When are pressure vessels subjected to technical inspection?
3. What is the frequency of technical inspection of vessels working with a medium that causes metal corrosion at a rate of no more than 0.1 mm/year, registered with the State Mining and Technical Supervision Authority?
TICKET No. 20
1. How is the volume, methods and frequency of technical inspection of vessels (with the exception of cylinders) established?
2. Registration of accidents and accidents.
3. Purpose of drains, fittings and air vents on vessels.
Tickets and answers B.8.23. Pressure vessels. Exam papers with answers, on industrial safety B.8.23. Operation of pressure vessels at hazardous production facilities (hereinafter referred to as HPF).
Tickets with answers for self-study on the system Olympox during certification by Rostechnadzor for industrial safety Operation of pressure vessels at hazardous production facilities.
B.8.23. Operation of pressure vessels at hazardous production facilities (hereinafter referred to as HPF)
1. When carrying out which processes at hazardous production facilities do not the requirements of the FNP ORPD apply?
1) Technical re-equipment of a hazardous production facility that uses pressure vessels.
2) Technical examination of pressure vessels.
3) Design and construction of pressure vessels.
4) Technical diagnostics and examination of pressure vessels.
2. When carrying out which processes at hazardous production facilities do not the requirements of the FNP ORPD apply?
1) Manufacturing of a pressure vessel.
2) Design of placement of pressure vessels at hazardous production facilities.
3) Repair of pressure vessels.
4) Adjustment work on process equipment, including pressure vessels.
3. Which of the following vessels is not covered by the FNP ORPD?
1) An air receiver with a volume of 270 liters, operating under a pressure of 1.6 MPa.
2) A vessel with a volume of 25 liters, operating under a medium pressure of 0.8 MPa.
3) An air tank with a volume of 170 liters, operating under a pressure of 1.0 MPa.
4) A vessel with a capacity of 50 liters, operating under a pressure of 0.5 MPa, installed on a floating drilling rig.
4. Which of the following vessels operating under pressure above 0.07 MPa is subject to the FNP ORPD?
1) Vessel with a radioactive medium.
2) Steam heating device.
3) A vessel installed on a floating dredge.
4) A vessel installed on an aircraft.
5. Who makes the decision to commission a pressure vessel?
1) Authorized representative of Rostechnadzor.
2) An authorized representative of Rostechnadzor makes a decision on the commissioning of vessels that are subject to registration with Rostechnadzor authorities; in other cases, the decision is made by the person responsible for the implementation of production control over the safe operation of pressure equipment.
3) Responsible for the good condition and safe operation of the vessel.
4) Head of the operating organization.
6. On what basis is the decision to commission a pressure vessel made?
1) Based on the results of checking the readiness of the vessel for commissioning and checking the organization of supervision over the operation of the vessel.
2) Based on the results of the initial examination of the vessel and verification of the organization of maintenance of the vessel and supervision of its operation.
3) Based on an order from an authorized representative of the territorial body of Rostechnadzor.
4) Based on industrial safety expertise. carried out before putting the vessel into operation.
7. In what case are the checks of the readiness of a vessel for commissioning and the organization of supervision of the operation of the vessel carried out by responsible specialists of the operating organization?
1) When transferring the vessel for use by another operating organization.
2) After installation without the use of welded joints of the vessel, delivered to the operation site in assembled form.
3) After a major overhaul of the vessel associated with the replacement of basic elements.
4) After installation of a vessel for which TR CU 032/2013 does not provide for a conformity assessment procedure.
8. In what case are checks of the readiness of a vessel for commissioning and organization of supervision over the operation of the vessel carried out by a commission appointed by order of the operating organization?
1) Before using the transportable vessel.
2) After installation without welding, the vessel is dismantled and installed in a new location.
3) After installation of the vessel, supplied in separate blocks, the final assembly of which using welded joints is carried out during installation at the site of its operation.
4) In all of the above cases, inspections are carried out by a commission appointed by order of the operating organization.
9. In what case is an authorized representative of Rostechnadzor included in the commission for checking the readiness of a vessel for commissioning and organizing supervision of its operation?
1) When carrying out inspections of fire-heated vessels and vessels working with a working environment classified in accordance with TR CU 032/2013 to group 1.
2) The inclusion of an authorized representative of Rostechnadzor in the commission is carried out exclusively on the initiative of the head of the operating organization.
3) When carrying out inspections of vessels subject to registration in the territorial bodies of Rostechnadzor.
4) The participation of an authorized representative of Rostechnadzor in the commission appointed by order of the operating organization is not provided for by the FNP ORPD.
10. What is monitored when checking the readiness of a vessel for commissioning?
1) Availability of job descriptions for responsible persons and specialists operating the vessel.
2) Availability and serviceability of fittings, instrumentation, safety devices and technological protections in accordance with the design.
3) Compliance with industrial safety requirements for the installation of the vessel and the correctness of its inclusion in accordance with the operating manual (instructions).
4) Availability of positive results of technical examination of the vessel.
11. What is controlled when conducting an inspection of the organization of supervision of the operation of a vessel, carried out before putting it into operation?
1) Availability of production instructions for maintenance personnel
2) Availability of documentation certifying the quality of installation of the vessel.
3) Availability of a vessel passport and a manual (instructions) for its operation.
4) Availability of documents confirming the compliance of the vessel with the requirements of TR CU 032/2013 or the conclusion of an industrial safety examination.
12. How should the results of checks of the vessel’s readiness for commissioning and organization of supervision over its operation be documented?
1) The results of inspections are documented by order (administrative document) of the operating organization.
2) The results of inspections are documented in a certificate of readiness of the vessel for commissioning.
3) The results of the checks are recorded in the vessel’s passport.
4) The results of the checks are documented in a protocol, which is the basis for putting the vessel into operation. The protocol is attached to the vessel passport.
13. For what period can the head of the operating organization make a decision on the possibility of operating the vessel in trial use mode?
1) No more than one year.
2) The period of operation of the vessel in trial use mode is established by the operating organization with notification of this to the territorial body of Rostechnadzor.
3) No more than 6 months.
4) Operation of the vessel in experimental mode is not allowed.
14. On the basis of what document is the start-up (start-up) and normal shutdown of the vessel carried out?
1) Based on the order of the head of the operating organization.
2) Based on a written order from the person responsible for the implementation of production control over the safe operation of pressure equipment.
3) Based on a written order from the person responsible for the good condition and safe operation of the vessel.
15. Which of the following is not indicated on the plate or applied to vessels (except for transported cylinders with a capacity of up to 100 liters) before putting them into operation?
1) Date of commissioning.
2) Equipment number according to the numbering adopted by the operating organization.
3) Permitted parameters (pressure, temperature).
4) Dates of the next inspections and hydraulic tests.
16. How is the accounting of transported vessels (cisterns) carried out in the territorial bodies of Rostechnadzor?
1) Tanks are subject to registration with the Rostekhnadzor body at the location (registration) of the organization operating these tanks.
2) Tanks are subject to registration with the Rostechnadzor body at the location of the site of the operating organization where repairs, maintenance and inspection of these tanks are carried out.
3) Tanks are subject to registration with the Rostekhnadzor body both at the location (registration) of the organization operating these tanks, and at the place of their use (temporary registration) if their use at this place is more than three months.
4) Transported vessels (tanks) are not subject to registration with the territorial bodies of Rostechnadzor.
17. Which of the following vessels is subject to registration in the territorial bodies of Rostechnadzor?
1) A vessel with liquefied gas, under a pressure of 0.5 MPa, operating periodically when it is emptied.
2) A gas cylinder with a capacity of 120 liters, installed on a vehicle to provide fuel for its engine.
3) Air receiver with a capacity of 550 liters, operating at a pressure of 2.0 MPa.
4) A 2.0 MPa pressure separator included in a closed oil production system.
18. Which of the following vessels is not subject to registration in the territorial bodies of Rostechnadzor?
1) A vessel working with a medium of the 1st group (according to TR CU 032/2013), with a wall temperature not exceeding 200 °C, in which the product of pressure (MPa) and capacity (m3) is equal to 0.1.
2) A vessel working with a medium of the 2nd group (according to TR CU 032/2013), with a wall temperature not exceeding 200 °C, in which the product of pressure (MPa) and capacity (m3) is equal to 1.2.
3) Barrel for transportation of liquefied gases, capacity 18 m3.
4) A vessel with a capacity of 36 m3 and a pressure of 0.1 MPa, installed in an underground mine.
19. What documentation is not submitted by the operating organization to the Rostekhnadzor body for registration of the vessel?
1) Application containing information about the operating organization indicating the location of installation of the stationary vessel.
2) Copies of the certificate of readiness of the vessel for commissioning and the order (administrative document) on its commissioning.
3) Vessel passport, installation quality certificate, manufacturer’s instructions for installation and operation of the vessel.
4) Information about the date of the technical examination or industrial safety examination and the timing of the next technical examination (examination).
20. In which of the following cases is it permissible for one specialist to combine responsibility for carrying out production control over the safe operation of vessels and responsibility for their good condition and safe operation?
1) Cases of combining responsibilities are determined independently by the operating organization in accordance with its administrative documents.
2) If the vessels are operated at no more than two production sites.
3) If this combination is agreed upon with the territorial body of Rostechnadzor.
4) Combination is not allowed.
21. Which requirement of the FNP ORPD for workers servicing vessels is indicated incorrectly?
1) Workers must be at least 18 years of age and have no medical contraindications to perform work on servicing vessels.
2) Workers must undergo industrial safety certification by the certification commission of the operating organization.
3) Workers must be allowed to work independently in accordance with the established procedure.
4) Workers must meet qualification requirements.
22. What instructions are not developed in the organization operating the vessels?
1) Instructions for those responsible for production control over the safe operation of pressure equipment.
2) Instructions for those responsible for the good condition and safe operation of vessels.
3) Production instructions, defining for service personnel their duties and responsibilities, the procedure for performing work.
4) Instructions (manual) for using the vessel.
23. Which requirement for specialists responsible for the good condition and safe operation of vessels is indicated incorrectly?
1) Taking into account the structure of the operating organization, a specialist responsible for the good condition of the vessel, as well as a specialist responsible for its safe operation, can be appointed.
2) During the absence of a responsible specialist (vacation, business trip, illness, etc.), his duties are assigned to the employees replacing him in his position, who have the appropriate qualifications and have passed industrial safety certification in the prescribed manner.
3) Periodic certification of responsible specialists is carried out once every five years.
4) Certification of specialists responsible for the good condition and safe operation of vessels is carried out by the certification commission of the operating organization with the mandatory participation of a representative of the territorial body of Rostechnadzor.
24. Which of the following is not included in the job responsibilities of a specialist responsible for carrying out production control over the safe operation of vessels?
1) Issuing mandatory instructions to eliminate violations and monitoring their implementation.
2) Checking the entry in the shift log with a signature in it.
3) Monitoring the implementation of emergency training.
4) Removal from work of workers who violate industrial safety requirements.
25. Which of the following is not included in the job responsibilities of a specialist responsible for the good condition and safe operation of vessels?
1) Monitoring compliance with the requirements of the Federal Tax Code and the legislation of the Russian Federation in the field of industrial safety during the operation of equipment under pressure, when identifying violations of industrial safety requirements, issuing mandatory instructions to eliminate violations and monitoring their implementation.
2) Inspection of vessels at the frequency established by the job description.
3) Conducting emergency training with maintenance personnel.
4) Preparing the vessel for technical examination.
26. How often is the knowledge of workers servicing vessels tested?
1) Frequency is established by the operating organization.
2) Once every 12 months.
3) Once every 4 months.
4) Once a year.
27. Which of the following requirements for testing the knowledge of workers servicing vessels is incorrect?
1) The results of testing workers’ knowledge are documented in a protocol signed by the chairman and members of the commission with a note in the certificate of admission to independent work.
2) The participation of a representative of Rostechnadzor is mandatory during the initial certification of workers servicing vessels with quick-release lids.
3) An extraordinary knowledge test is carried out when hiring a worker from another organization.
4) In case of reconstruction (modernization) of a vessel, an extraordinary knowledge test must be carried out.
28. In which of the following cases, after testing knowledge, a worker servicing vessels must undergo an internship?
1) Before initial admission to independent work after vocational training.
2) Before admission to independent work after an extraordinary knowledge test
3) If there is a break in work in the specialty for more than 12 months.
4) In all of the above cases, an internship is carried out.
5) Internship is carried out in all the above cases, except for a break in work in the specialty for more than 12 months.
29. Which of the following, in accordance with the requirements of the FNP ORPD, is not regulated by the production instructions on the operating mode and safe maintenance of vessels?
1) The procedure for checking the serviceability of serviced vessels and related equipment in working condition.
2) The procedure, timing and methods for checking fittings, safety devices, automatic protection and alarm devices.
3) The procedure for conducting technical inspection of vessels that are not subject to registration in the territorial body of Rostechnadzor.
4) The procedure for starting up and stopping (terminating work) of the vessel.
30. Which of the following, in accordance with the requirements of the FNP ORPD, is not regulated by the production instructions on the operating mode and safe maintenance of vessels?
1) Responsibilities of personnel during duty to monitor and control the operation of the vessel.
2) Actions of personnel during emergency response.
3) Safety measures when removing equipment for repair.
4) Actions of personnel and safety measures when preparing the vessel for technical examination.
31. What instructions should be additionally included in the manufacturing instructions for the operating mode and safe maintenance of autoclaves with quick-release lids?
1) Procedure for using the key tag and lock; control over continuous condensate drainage.
2) Permissible rates of heating and cooling of the autoclave and methods for their control.
3) The procedure for monitoring the thermal movements of the autoclave; control over the absence of pinching of moving supports.
4) All instructions given must be included in the production instructions.
5) All instructions given, except for monitoring the continuous removal of condensate, must be included in the production instructions.
32. What must be ensured when operating vessels heated by hot gases?
1) Maximum reduction of heat loss from the surface of a vessel with an elevated temperature into the environment.
2) The temperature of the outer surface of the insulation is no more than 55 °C at an ambient temperature of no more than 25 °C.
3) Reliable cooling of walls under pressure, preventing the wall temperature from exceeding permissible values.
33. What accuracy class pressure gauges must be used when operating vessels with operating pressure up to 2.5 MPa?
1) Not lower than 4.0.
2) Not lower than 2.5.
3) Not lower than 1.5.
4) Not lower than 1.0.
34. What accuracy class pressure gauges must be used when operating vessels with operating pressures above 2.5 MPa?
1) Not lower than 4.0.
2) Not lower than 2.5.
3) Not lower than 1.5.
4) Not lower than 1.0.
35. Which of the following requirements for pressure gauges installed on vessels is incorrect?
1) The owner of the vessel must mark the pressure gauge scale with a red line indicating the permitted pressure in the vessel.
2) Instead of the red line, it is allowed to attach to the pressure gauge body a plate painted red and tightly adjacent to the pressure gauge glass.
3) The pressure gauge must be selected with a scale such that the operating pressure measurement limit is in the second third of the scale.
36. What is the minimum value of the nominal diameter of a pressure gauge installed on a vessel at a height of up to 2 meters from the level of the observation platform?
1) 50 mm.
2) 100 mm.
3) 160 mm.
4) 200 mm.
37. What is the minimum nominal diameter of a pressure gauge installed on a vessel at a height of 2 to 3 meters from the level of the observation platform?
1) 50 mm.
2) 100 mm.
3) 160 mm.
4) 200 mm.
38. What is the minimum value of the nominal diameter of a pressure gauge installed on a vessel at a height of more than 3 meters from the level of the observation platform?
1) 160 mm.
2) 200 mm.
3) 250 mm.
4) Installation of a pressure gauge at this height is not permitted.
39. For which of the following vessels is it possible to install, instead of a three-way valve, a separate fitting with a shut-off element for connecting a second pressure gauge?
1) A vessel operating under air pressure equal to 2.0 MPa.
2) A vessel operating under water pressure at a temperature of 150 °C.
3) A vessel operating under a pressure of liquefied hydrocarbon gas equal to 1.5 MPa.
4) For all the above vessels, it is allowed to install, instead of a three-way valve, a separate fitting with a shut-off element for connecting a second pressure gauge.
40. For which of the following vessels is it not necessary to install a three-way valve or a device replacing it between the pressure gauge and the vessel?
1) For vessels working with media classified as group 2 (in accordance with TR TS 032/2013).
2) For vessels operating with a medium that does not have a direct temperature effect on the reliability of the pressure gauge.
3) For vessels that have the ability to check the pressure gauge by removing it from the installation site.
4) For all vessels, it is mandatory to install a three-way valve or a device that replaces it between the pressure gauge and the vessel.
41. In which of the following cases can a pressure gauge be approved for use on a vessel?
1) If there is no seal or stamp on the pressure gauge with a mark indicating that verification has been carried out or the period for calibrating the pressure gauge has expired.
2) If the pressure gauge needle, when it is turned off, does not return to the zero scale mark by an amount not exceeding half the permissible error for the pressure gauge.
3) If the glass is broken or there is other damage to the pressure gauge that may affect the accuracy of its readings.
4) In all of the above cases, the pressure gauge is not allowed for use.
42. Which requirement for checking the serviceability of a pressure gauge installed on a vessel is indicated incorrectly?
1) The serviceability of the pressure gauge is checked using a three-way valve or shut-off valves that replace it by setting the pressure gauge needle to zero.
2) The operating organization is obliged to check working pressure gauges at least once every 6 months with a control pressure gauge or a working pressure gauge that has the same scale and accuracy class as the pressure gauge being tested.
3) At least once every 12 months (unless other periods are established by the documentation for a specific pressure gauge), pressure gauges must be calibrated in the prescribed manner.
43. How should the serviceability of a spring safety valve be monitored if its forced opening is undesirable under the conditions of the technological process?
1) The serviceability of the spring safety valve is monitored by briefly increasing the pressure in the vessel to the safety valve response value.
2) The serviceability of the spring safety valve is monitored when it is disconnected from the vessel using shut-off valves installed between the vessel and the safety valve.
3) The serviceability of the spring safety valve is monitored by checking its operation on stands.
4) The serviceability of the spring safety valve is monitored by installing two valves on the vessel, one of which is in reserve and is connected when checking the main valve.
44. On which vessel is it not necessary to install a pressure gauge and a safety valve?
1) On a vessel included in a technological process in which the pressure of the working medium is maintained at a constant level and provided that the possibility of increasing pressure in the vessel is excluded.
2) On a vessel included in a group of vessels, during operation of which a pressure gauge and a safety valve are installed on the supply pipeline before the first branch to one of the vessels and provided that the possibility of increasing pressure in the vessel is excluded (heating, chemical reaction, fire).
3) On a vessel in which the operating pressure is equal to or greater than the pressure of the supply source and provided that the possibility of increasing pressure in the vessel is excluded.
4) A pressure gauge and safety valve must be installed on each vessel.
45. Which of the following requirements for equipping a vessel designed for a pressure less than the pressure of the supply source is indicated incorrectly?
1) An automatic reducing device with a pressure gauge and a safety device installed on the reduced pressure side must be installed on the supply pipeline.
2) On a common supply pipeline for a group of vessels operating at the same pressure, it is allowed to install a reducing device with a pressure gauge and a safety valve up to the first branch to one of the vessels.
3) On the supply pipeline, including branches from the common pipeline to each vessel and bypass lines, flow regulators and safety valves adjusted to the operating parameters of the vessels must be installed.
46. What is the maximum permissible pressure value with operating safety valves in a vessel with a pressure of up to 0.3 MPa?
47. What is the maximum permissible pressure value with operating safety valves in a vessel with a pressure from 0.3 to 6 MPa?
1) Permitted pressure plus 0.05 MPa.
2) 1.15 permitted pressure.
3) 1.1 permitted pressure.
4) 1.25 permitted pressure.
48. What is the maximum permissible pressure value with operating safety valves in a vessel with a pressure above 6 MPa?
1) Permitted pressure plus 0.05 MPa.
2) 1.15 permitted pressure.
3) 1.1 permitted pressure.
4) 1.25 permitted pressure.
49. Which of the following requirements for the operation of safety valves installed on vessels is incorrect?
1) When safety valves are operating, the pressure in the vessel is allowed to exceed the pressure by no more than 25% of the permitted value, provided that this excess is provided for by the design and is reflected in the vessel passport.
2) If during operation the operating pressure of the vessel is reduced, then it is necessary to calculate the capacity of the safety devices for the new operating conditions.
3) The inlet, outlet and drainage pipelines of the safety valves should be protected from freezing of the working medium in them.
4) Sampling of the working medium from the branch pipes and sections of connecting pipelines from the vessel to the valves on which safety devices are installed is not allowed.
50. What requirement must be met when installing several safety valves on one branch pipe (pipeline)?
1) The cross-sectional area of the branch pipe (pipeline) must be at least 1.25 times the total cross-sectional area of the valves installed on it.
2) The cross-sectional area of the nozzle (pipeline) must be equal to the total cross-sectional area of the valves installed on it.
3) The cross-sectional area of the branch pipe (pipeline) must be no more than 1.25 of the total cross-sectional area of the valves installed on it.
51. Which of the following requirements for organizing the removal of toxic, explosive and fire hazardous process media leaving safety devices is incorrect?
1) Discharged media must be sent to closed systems for further disposal or to organized combustion systems.
2) In cases justified by design documentation, discharge of media into the atmosphere through discharge pipelines is permitted, provided that safe dispersion of the discharged media is ensured.
3) It is prohibited to combine discharges containing substances that, when mixed, can form explosive mixtures or unstable compounds.
4) All requirements are correct.
52. Under what conditions is it permissible to install a switching device in front of membrane safety devices?
1) If membrane safety devices are connected in series with spring safety valves, as well as with switching devices, provided that the serviceability of the membranes is monitored using signal pressure gauges.
2) If a double number of membrane devices is installed, while ensuring that the vessel is protected from overpressure in any position of the switching device.
3) Installation of a switching device in front of diaphragm safety devices is not permitted.
53. Which document contains the results of checking the serviceability of safety devices installed on the vessel and information about their settings?
1) In the vessel passport.
2) In the safety valve passport.
3) In the change magazine.
4) In the corresponding appendix (functionality check and information about settings) to the production instructions for the operation of safety devices.
54. Which of the requirements for the operation of vessels with an interface between media, in which liquid level control is required, is indicated incorrectly?
1) If the liquid level can drop below the permissible level on vessels heated by flame or hot gases, the level is monitored using two direct indicators.
2) The height of the transparent liquid level indicator must be at least 25 mm respectively below the lower and higher than the upper permissible liquid levels.
3) Reliable operation of sound, light and other alarms and level interlocks provided for by the project and installed along with level indicators must be ensured.
4) When purging the fittings installed on the level indicator, it must be ensured that the working medium not classified as Group 1 (TR TS 032/2013) is diverted into a container connected to the atmosphere; for other media, the medium must be diverted to a safe place.
5) All requirements are correct.
55. At what minimum excess pressure in a vessel is it permissible to repair the vessel and its elements?
1) Repairs of vessels and their elements under pressure are not allowed.
2) 0.05 MPa.
3) For vessels subject to registration in the territorial bodies of Rostechnadzor, repairs of vessels and their elements under pressure are not allowed; for other vessels - 0.05 MPa.
4) 0.025 MPa.
56. In which of the following cases, in accordance with the requirements of the FNP ORPD, the vessel is not subject to emergency stop?
1) If the liquid level drops below the permissible level in fire-heated vessels.
2) If one of the liquid level indicators fails.
3) If a malfunction of the pressure increase safety device is detected.
4) In all of the above cases, the vessel is subject to emergency stop.
57. What document determines the procedure for action in the event of an incident during the operation of a vessel?
1) Production instructions approved by the operating organization.
2) Instructions establishing the actions of workers in emergency situations and in the event of an incident when operating equipment under pressure, approved by the operating organization.
3) Instructions (manual) for the operation of the vessel manufacturer.
58. What document(s) establishes the scope of work, the procedure and frequency of technical examinations within the service life of the vessel?
1) Instructions (manual) for the operation of the manufacturer of the vessel and FNP ORPD.
2) A program for conducting a technical examination of the vessel, developed by a specialized organization before the start of the examination.
3) Instructions for the operating mode and safe maintenance of vessels, approved by the chief technical manager of the operating organization.
59. In which of the following cases is an extraordinary technical examination of the vessel not carried out?
1) If the vessel has not been used for more than 12 months.
2) If the mobile vessel is installed at another site of the operating organization.
3) If a planned repair of the vessel has been carried out using welded joints.
4) In all cases, an extraordinary technical examination of the vessel is carried out.
60. What conditions must be met when setting the date for the next periodic technical inspection of the vessel?
1) The deadline for the next survey is established only by an expert organization, if it is not established by the manufacturer in the operating manual.
2) The period of the next survey may exceed, but not more than 2 years, the service life of the vessel, established either by the manufacturer or based on the results of technical diagnostics of the vessel.
3) The period of the next survey should not exceed the service life of the vessel, established either by the manufacturer or based on the results of technical diagnostics of the vessel.
61. What needs to be done if defects are discovered during inspection of the vessel?
1) To establish the nature and size of defects, a technical diagnosis of the vessel must be carried out using non-destructive testing methods.
2) The organization that carried out the technical examination gives an order to remove the vessel from service.
3) The operating organization must transfer the vessel to operating mode at reduced parameters recommended by the organization that carried out the technical examination.
62. What document determines the scope, methods and frequency of technical inspections of vessels (with the exception of cylinders)?
1) FNP ORPD.
2) Manual (operating instructions).
3) Instructions for operating mode and safe maintenance of the vessel.
4) Technical Regulations of the Customs Union “On the safety of equipment operating under excess pressure.”
63. Who carries out technical inspections of vessels that are not subject to registration with the territorial body of Rostechnadzor?
1) A commission created by order of the operating organization.
2) Responsible specialists of the operating organization.
3) An authorized specialized organization.
64. Which of the following operations is not subject to mandatory inclusion in the scope of work for the initial technical inspection of vessels installed on site?
1) Visual and measuring control.
2) Control of the wall thickness of vessel elements.
3) Hydraulic test.
4) Checking the compliance of installation, piping, instrumentation and safety devices.
5) All of the above operations are subject to mandatory inclusion during the initial examination of the vessel.
65. In what case, during the initial technical examination, is it permissible not to inspect the internal surface and hydraulic test of the vessel?
1) If this is established in the requirements of the manual (instructions) for the operation of the vessel supplied assembled, and the terms and conditions of preservation specified in the manual are not violated.
2) If the vessel is intended to work under pressure of working media classified in group 2.
3) During the initial technical examination of a vessel, an inspection of the internal surface and a hydraulic test are always carried out.
4) If the vessel is not subject to the Technical Regulations of the Customs Union “On the safety of equipment operating under excess pressure”.
66. What determines the scope of an extraordinary technical examination?
1) The scope of the extraordinary technical examination is the same as during the initial examination.
2) The scope of the extraordinary technical examination is determined by the manufacturer of the vessel.
3) The scope of an extraordinary technical examination is determined by the reasons that caused it to be carried out.
4) The scope of extraordinary technical examination is determined by the operating organization.
67. How is a vessel operating under pressure of air or inert gases purged before starting work inside its body?
1) Only by air.
2) Only with inert gas.
3) For such vessels, purging before starting work inside their body is not provided.
68. How is a vessel operating under pressure of flammable gases purged before starting work inside its body?
1) Inert gas and air or their mixture.
2) Special treatment is provided for such vessels (degassing, neutralization).
3) Only by air.
69. Is it necessary to completely remove the outer insulation of a vessel when carrying out its extraordinary technical examination after repair using welding and heat treatment?
1) It is allowed to partially remove the external insulation only in the place undergoing repairs.
2) No, in this case the external insulation is not removed.
3) Yes, the outer insulation of the vessel must be completely removed.
70. Which of the following formulas is used to determine the value of test pressure (Ppr) during hydraulic testing (periodic technical inspection) of metal vessels (except for cast ones)? Where in the formulas: Рrab – working pressure of the vessel, P calculated – design pressure of the vessel, [σ]20, [σ]t – permissible stresses for the material of the vessel or its elements, respectively, at 20 °C and design temperature, MPa.
1) Rpr = 1.25 Rrab ([σ]20 / [σ]t).
3) Ррр = 1.5 Рrab ([σ]20 / [σ]t).
4) Rpr = 1.25 Rwork.
71. Which of the following formulas is used to determine the value of test pressure (Ppr) during hydraulic testing (periodic technical inspection) of cast and forged metal vessels? Where in the formulas: Рrab – working pressure of the vessel, P calculated – design pressure of the vessel, [σ]20, [σ]t – permissible stresses for the material of the vessel or its elements, respectively, at 20 °C and design temperature, MPa.
1) Rpr = 1.5 Rrab ([σ]20 / [σ]t).
2) Rpr = 1.25 Rcalc ([σ]20 / [σ]t).
4) Rpr = 1.25 Rwork.
72. Which of the following formulas is used to determine the value of test pressure (Ppr) during hydraulic testing (periodic technical inspection) of vessels made of non-metallic materials with an impact strength of more than 20 J/cm2? Where in the formulas: Рrab – working pressure of the vessel, P calculated – design pressure of the vessel, [σ]20, [σ]t – permissible stresses for the material of the vessel or its elements, respectively, at 20 °C and design temperature, MPa.
1) Ррр = 1.3 Рrab ([σ]20 / [σ]t).
3) Ррр = 1.6 Рrab ([σ]20 / [σ]t).
4) Rpr = 1.6 Rwork.
73. Which of the following formulas is used to determine the value of test pressure (Ppr) during hydraulic testing (periodic technical inspection) of vessels made of non-metallic materials with an impact strength of 20 J/cm2 or less? Where in the formulas: Рrab – working pressure of the vessel, P calculated – design pressure of the vessel, [σ]20, [σ]t – permissible stresses for the material of the vessel or its elements, respectively, at 20 °C and design temperature, MPa.
1) Ррр = 1.6 Рrab ([σ]20 / [σ]t).
2) Rpr = 1.3 Rcalc ([σ]20 / [σ]t).
3) Ррр = 1.3 Рrab ([σ]20 / [σ]t).
4) Rpr = 1.6 Rrab
74. Which of the following formulas is used to determine the value of test pressure (Ppr) during hydraulic testing (periodic technical inspection) of cryogenic vessels in the presence of vacuum in the insulating space? Where in the formulas: Рrab – working pressure of the vessel, P calculated – design pressure of the vessel, [σ]20, [σ]t – permissible stresses for the material of the vessel or its elements, respectively, at 20 °C and design temperature, MPa.
1) Rpr = 1.25 Rrab – 0.1.
2) Rpr = 1.5 Rrab – 0.1.
3) Ррр = 1.25 Рrab ([σ]20 / [σ]t).
4) 1Rpr = 1.25 Rrab + 0.1.
75. Which of the following formulas is used to determine the value of test pressure (Ppr) during hydraulic testing (periodic technical inspection) of metal-plastic vessels whose impact strength of non-metallic materials is more than 20 J/cm2? Where in the formulas: Рrab – operating pressure of the vessel, [σ]20, [σ]t – permissible stresses for the material of the vessel or its elements, respectively, at 20 °C and design temperature, MPa, Km – ratio of the mass of the metal structure to the total mass of the vessel.
1) Ррр = Рrab ([σ]20 / [σ]t).
2) Ррр = Рrab ([σ]20 / [σ]t).
76. Which of the following formulas is used to determine the value of test pressure (Ppr) during hydraulic testing (periodic technical inspection) of metal-plastic vessels whose impact strength of non-metallic materials is 20 J/cm2 or less? Where in the formulas: Рrab – operating pressure of the vessel, [σ]20, [σ]t – permissible stresses for the material of the vessel or its elements, respectively, at 20 °C and design temperature, MPa, Km – ratio of the mass of the metal structure to the total mass of the vessel.
1) Ррр = Рrab ([σ]20 / [σ]t).
2) Ррр = Рrab ([σ]20 / [σ]t).
3) Rpr = Rrab.
4) Ррр = 1.6 Рrab ([σ]20 / [σ]t).
77. Which of the following requirements must be met when conducting hydraulic testing of vessels?
1) In combined vessels with two or more working cavities designed for different pressures, each cavity must be subjected to a hydraulic test with a test pressure equal to the maximum test pressure determined for each cavity.
2) In combined vessels with an even number of working cavities designed for different pressures, each pair of cavities must be subjected to a hydraulic test with a test pressure determined depending on the design pressure of the cavities.
3) Hydraulic testing of vessels installed vertically is not allowed in a horizontal position
4) Hydraulic testing of vessels installed vertically is permitted to be carried out in a horizontal position, and the strength of the vessel body must be calculated taking into account the accepted method of support for carrying out the hydraulic test.
78. What is the minimum temperature of water used for hydraulic testing of a vessel (if a specific value is not specified in the manufacturer’s technical documentation)?
1) 4 degrees Celsius.
2) 5 degrees Celsius.
3) 10 degrees Celsius.
4) 80 degrees Celsius.
79. In which of the following cases, when conducting a hydraulic test during the operation of vessels, is it allowed to use another liquid other than water?
1) In technically justified cases provided for by the organization conducting the hydraulic test.
2) If another liquid does not contaminate the vessel and does not cause intense corrosion.
3) In technically justified cases provided by the manufacturer.
4) Not allowed; only water is used during hydraulic testing of vessels.
80. Which of the following requirements must be met when conducting a hydraulic test of a vessel?
1) The holding time under test pressure of a vessel in operation must be determined by the operating manual (instructions).
2) Water pressure during hydraulic testing should be monitored with at least two pressure gauges. Both pressure gauges choose the same type, measurement limit, the same accuracy classes (not lower than 2.5) and division prices.
3) If the test pressure is no more than 0.5 MPa, it is allowed to use compressed air or other gas to increase the pressure in a vessel filled with water.
4) The total time for pressure rise (to the test value) must be at least one hour.
81. What is the minimum holding time under test pressure for a vessel with a wall thickness not exceeding 50 mm (unless otherwise indicated in the operating instructions)?
15 minutes.
2) 10 minutes.
3) 20 minutes.
4) 30 minutes.
82. What is the minimum value of holding time under test pressure for a vessel with a machine thickness of over 50 to 100 mm inclusive (if there are no other instructions in the operating manual)?
15 minutes.
2) 10 minutes.
3) 20 minutes.
4) 30 minutes.
83. What is the minimum value of holding time under test pressure for a vessel with a thickness of more than 100 mm (if there are no other instructions in the operating manual)?
15 minutes.
2) 10 minutes.
3) 30 minutes.
4) 20 minutes.
84. In which of the following cases is the vessel considered to have passed the hydraulic test?
1) If only single cracks are found in the welded joint, and no cracks are found on the base metal.
2) If the appearance of individual drops is detected in detachable connections, which do not increase in size when left in place for a period of time.
3) If the visible permanent deformation does not exceed 10%.
4) In all of the above cases, the vessel is considered to have failed the hydraulic test.
85. Under what conditions is it permissible to replace the hydraulic test of a vessel with a pneumatic test?
1) If the pneumatic test is simultaneously controlled by the acoustic emission method.
2) If during pneumatic testing the gaseous working medium of the test object is used as a loading medium.
3) If the operating pressure of the vessel does not exceed 0.5 MPa.
4) If carrying out a hydraulic test is associated with the possibility of brittle fracture of the metal of the vessel.
86. Which of the following formulas is used to determine the value of test pressure (Ppr) during pneumatic testing of vessels? Where in the formulas: Рrab – operating pressure of the vessel, σ]20, [σ]t – permissible stresses for the material of the vessel or its elements, respectively, at 20 °C and design temperature, MPa.
1) Ррр = 1.15 Рrab ([σ]20 / [σ]t).
2) Рр = Р slave.
3) Ррр = 1.25 Рrab ([σ]20 / [σ]t).
4) Rpr = 1.5 Rwork.
87. What is the minimum value of the holding time of a vessel under test pressure during a pneumatic test?
15 minutes.
2) 10 minutes.
3) 15 minutes.
4) The holding time of the vessel is determined by the time of natural pressure drop, determined by the pressure gauge, from the test pressure value to the operating pressure value.
88. Which tanks must have thermal insulation or shade protection?
1) All tanks.
2) Tanks filled with liquefied oxygen and nitrogen at a temperature not exceeding minus 25 ° C at the end of filling.
3) Tanks filled with liquid ammonia at a temperature
not exceeding minus 25 °C at the time of completion of filling.
89. Which of the following requirements for a safety valve installed on a tank is incorrect?
1) The safety valve installed on the tank must communicate with the gas phase of the tank.
2) The safety valve installed on the tank must have a cap with holes to release gas if the valve is opened.
3) The area of the holes in the cap must be equal to the working cross-sectional area of the safety valve.
90. For which barrels should the filling and drain valves be equipped with a siphon?
1) Barrels intended for flammable gases.
2) Barrels intended for chlorine and phosgene.
3) Barrels intended for working environments classified as group 1 in accordance with TR CU 032/2013.
4) For all barrels that are subject to the FNP ORPD.
91. What is the minimum value of residual excess pressure that must remain in tanks and barrels emptied by the consumer?
1) 0.07 MPa.
2) 0.05 MPa.
3) The consumer, when emptying tanks and barrels, is obliged to release the pressure completely, without leaving excess pressure in the empty equipment.
4) The value of residual excess pressure is indicated in the production instructions of the organization that fills tanks and barrels.
92. Which of the following requirements for the operation of transport tanks and barrels is incorrect?
1) When operating transport tanks, only those facilities of operating organizations that store and use tanks under gas pressure in the technological process are subject to registration in the state register of hazardous production facilities.
2) Transportation of tanks, as well as transportation of barrels under gas pressure on public roads by road (rail) transport is an activity in the field of industrial safety.
3) Transportation of tanks, as well as transportation of barrels under gas pressure on public roads by road (railway) transport is not regulated by the requirements of the FNP ORPD and is carried out in accordance with the requirements of other regulatory legal acts and international agreements in force on the territory of the Russian Federation.
4) All the above requirements are correct.
93. In which of the following cases should the placement of gas cylinders at points of consumption be carried out in accordance with the equipment placement plan (project)?
1) When placing a group cylinder installation.
2) When placing cylinders in places where vehicles pass.
3) When placing the cylinder at a distance of less than 5 meters from heat sources with open fire.
94. Which of the following requirements for the placement of cylinders when using them is indicated incorrectly?
1) It is allowed to install cylinders at a distance of at least 1 meter from heating radiators and other heating devices.
2) It is not allowed to install cylinders in places where cargo is moved.
3) It is not allowed to install the cylinder in rooms where there are heat sources with open fire.
4) All requirements are correct.
95. Which of the following cylinders can be used in a horizontal position?
1) Oxygen cylinder.
2) Acetylene cylinder.
3) Propane-butane cylinder.
4) Allowed for all cylinders without restrictions.
96. What is the minimum value of excess pressure that must remain in the cylinders (unless otherwise provided by the technical specifications for gas)?
1) The gas in the cylinders must be completely discharged.
2) 0.07 MPa.
3) 0.05 MPa.
4) FNP ORPD is not regulated.
97. Which of the following requirements for supplying gas from cylinders to a vessel that operates at lower pressure is incorrect?
1) Gases must be supplied through a reducer designed for a given gas and painted in the appropriate color.
2) A pressure gauge with a scale must be installed at the inlet to the reducer, providing the ability to measure the maximum operating pressure in the cylinder.
3) A spring safety valve must be installed on the low pressure chamber of the reducer, adjusted to the appropriate permitted pressure in the vessel, as well as a pressure gauge corresponding to this pressure.
4) All the above requirements are correct.
98. Where should cylinders with poisonous gases be stored?
1) Outdoors, if they are protected from precipitation and sunlight.
2) In special storage rooms together with oxygen cylinders.
3) In special enclosed spaces.
99. What requirements for storing cylinders are indicated incorrectly?
1) It is not allowed to store cylinders that do not have shoes,
in a horizontal position on wooden frames or racks.
2) When storing in open areas, it is allowed to stack cylinders
with shoes in stacks with spacers made of rope, wooden beams, rubber or other non-metallic materials with shock-absorbing properties between horizontal rows.
3) When stacking cylinders in stacks, the height of the latter should not exceed 1.5 meters, the valves of the cylinders should face one direction.
100. Which requirement for warehouses for storing cylinders is incorrect?
1) The warehouse building must be one-story with light-type coverings and have no attic spaces.
2) Walls, partitions, and coverings of warehouses for storing gases must be made of fireproof materials that comply with the design; Windows and doors should open inward.
3) The height of storage areas for cylinders must be at least 3.25 meters from the floor to the lower protruding parts of the roofing.
4) Window and door glass must be frosted or painted over with white paint.
101. Which requirement for warehouses for storing cylinders is incorrect?
1) Instructions and rules must be posted in warehouses
and posters on handling cylinders in storage.
2) Warehouses for gas cylinders must have natural or artificial ventilation.
3) Warehouses for cylinders must be located in the lightning protection zone.
4) All requirements are correct.
102. Which requirement for the movement of cylinders at the sites where they are used is indicated incorrectly?
1) Cylinders must be moved on specially adapted carts or with the help of other devices that ensure safe transportation.
2) The movement of filled cylinders within the production site must be carried out using spring transport or trucks.
3) Moving filled cylinders located vertically on trucks is not allowed, even if there are containers.
4) All the above requirements are correct.
103. What document establishes additional safety requirements for the operation, filling, storage and transportation of cylinders made of metal-composite and composite materials?
1) No additional safety requirements are established for these cylinders.
2) Technical Regulations of the Customs Union “On the safety of equipment operating under excess pressure.”
3) Instructions (manual) for use.
4) Relevant state standards and codes of practice.
1. Where should the design life of a pressure vessel be indicated?
In passport
On the neck of the vessel
In regulatory documentation
2. Which of the listed persons is obliged to comply with the requirements of the “Industrial Safety Rules for Hazardous Production Facilities that Use Equipment Operating under Excessive Pressure”
Persons engaged in any work in a workshop in which pressure vessels are located
Workers engaged in the operation, installation and repair of pressure vessels
Workers servicing steam and hot water pipelines
3. What is not indicated on the sign that is posted on equipment operating under excess pressure before starting up?
Equipment number
Allowed parameters (pressure, temperature)
Commissioning date
4. What working environment should be used for hydraulic testing of the vessel
Inert gas with water
Compressed air with water
5. What working environment is used for pneumatic testing of the vessel?
Compressed air, inert gas
Oxygen
6. What data should the marking of the shut-off valves of the vessel contain?
Date of manufacture, brand of body material
Nominal diameter, direction of medium flow, grade of body material
Weight of fittings, nominal pressure
7. Who determines the quantity, type of fittings and location of its installation
Owner of the vessel
Vessel manufacturer
Vessel project developer
8. In what cases is a pressure gauge not allowed for use?
In the absence of a seal or stamp with a verification mark
No red line at operating pressure level
In low light
9. What is the frequency of checking pressure gauges?
At least once every 12 months
At least once every 24 months
At least once a quarter
10. Where installation of vessels registered with Rostechnadzor is allowed
In any buildings, subject to installation rules
In premises adjacent to industrial buildings, separated from the building by a main wall
In premises adjacent to domestic buildings, with permission from Rostechnadzor
11. What devices should be provided for ease of maintenance of vessels
Stepladders
Platforms and stairs
12. What documents are required when registering a vessel?
Passport for safety devices, pressure gauges
Vessel passport, installation quality certificate, vessel connection diagram
Vessel passport and installation plan
13. Where are the results of the technical examination of the vessel recorded?
To the shift magazine
In the vessel passport
In the act of completed work
14. Who is responsible for preparing the vessel for inspection
General Director of the organization that owns the vessel
Repair personnel of the organization that owns the vessel
Owner of the vessel
15. Which responsible persons should be appointed by the owner to ensure that the vessels are kept in good condition and their operating conditions are safe?
Senior Vessel Master
Responsible for the good condition and safe operation of pressure equipment and responsible for the implementation of production control
Responsible for supervision of the technical condition and safe operation of vessels
16. Periodic certification of responsible specialists is carried out
Once every five years
Once every three years
Once a year
17. Periodic testing of the knowledge of personnel servicing equipment under pressure is carried out
Once every 12 months
Once a quarter
Once every three years
18. Which of the following should undergo an internship after testing their knowledge?
All passed the knowledge test
Those who passed the knowledge test unsatisfactorily
If there is a break in work in the specialty for more than 12 months.
19. How to obtain permission to independently service pressure equipment
Allowed with verbal permission after testing knowledge
If there is an entry in the certificate for servicing vessels
An order (instruction) is issued for the workshop or organization
20. Where are the instructions on the operating mode and safe maintenance of vessels?
In the department of labor protection and industrial safety
At staff workplaces
Responsible for the good condition and safe operation of the equipment
21. Who determines the service life of cylinders for storing and transporting gases
Manufacturing organization
The organization operating these cylinders
Responsible for the good condition and safe operation of equipment at the enterprise
22. What residual gas pressure should be in the cylinder
Not less than 0.5 kgf/cm2
0.5 kgf/cm2
Not less than 1.0 kgf/cm2
23. Which of the data is not stamped on the top spherical part of the cylinder?
Cylinder number
Manufacturer's trademark
The name of the gas the cylinder is filled with and its formula
24. What color are the body of the oxygen cylinder and the inscription on it painted in?
Green - black
Blue - black
Blue - white
25. At what distance from heat sources with open fire can cylinders be located?
At least 5 m
Not less than 1 m
Not standardized
26. Gas is released from the cylinder into a vessel with lower pressure
Through safety valve
Through the sleeve
Through a gearbox
27. Where are the valves on the cylinder replaced?
In the organization's repair shop
At cylinder inspection points
In any workshop, if the workers have a certificate for the right to service pressure vessels
28. How cylinders are moved at the sites where they are used
On specially adapted trolleys
On hands, if the distance is small
Using a block
29. How cylinders are stacked during transportation
One way valves
Laying cylinders with valves in one direction is not permissible
Not standardized
30. When transporting cylinders, they can be used as gaskets.
Wooden sticks
Thick pieces of fabric folded several times
Rope or rubber rings
