Gas safety test questions and answers
Gas safety test
I. Question of judgement (right, wrong)
One user bakes clothes on gas stoves. () the two main types of work carried out on the patrol are those of surveyors and water pumping. () the role of gas tanks is to store gas and regulate pressure. () the pressure on low pressure gas tanks is 0. 8 mpa1. 6 pa. ( ) go ahead. When the gas cabinet was replaced, one employee was sick on the gas cabinet due to shortage of personnel ()
Ii. Filling in the question
One, the pipe connection is welded, frank connects
2. Low pressure storage cabinets are divided into seals, wet, dry, two
3. Requirements for indoor gas pipelines are good ventilation, accident ventilation
4. The way in which a user introduces a tube is generally divided into indoors and outdoors
5. Indoor gas pipelines generally undergo a regular overhaul every 1-2 years。
Options
The two main tasks of management once the network is operational (a)
A. Patrol lines, pumping water, leakage and routine maintenance and incident management
B. Inspection and maintenance
C. Construction and incident management
(b)
2. For pressure relief operations, the pressure shall be controlled by a person and the internal gas pressure shall not be less than
A, 1,000 pab, 500 pac, 2000pa
3. Decompressors are divided by operation (a)
D. Direct and indirect modes of action
E. High and low pressure
F. Automatic and manual
4 - the vertical net distance from the bottom of the empty gas pipeline to the pavement of the pavement should not be small
& on
A, 12 m b, 5 m c, 2. 2 m
Iv. Questions
1. What is the replacement job?
Answer, the replacement job is to replace the air in the pipe facility with gas, or to replace the air with nitrogen and then the nitrogen with gas。
2. What are the requirements for the odour dose in the gas?
Answer, (1) toxic gas leaks into air and should be detectable before reaching permitted harmful concentrations in humans。
(2) no gas leaks
At 20% of the lower explosive level in air should be detected。
3. What are the circumstances in which network patrols should be enhanced?
Response, (1) gas pipelines and equipment in densely populated areas。
(2) gas pipelines and installations crossing railways, rivers, culverts, etc
Ready。
(3) areas where construction of buildings is frequent。
(4) newly operational gas pipelines and equipment。
(5) significant gas pipelines and equipment。
Gas safety awareness campaign
1. Rooms in which natural gas is passed and users are no longer allowed to use other fuels, such as bottled liquefied gas, coal, etc。
2. Natural gas rubber tubes are not allowed through walls and are periodically inspected, periodically replaced (18 months) and have been found to be ageing, tortoise cracks, twists or damage requiring timely replacement. To ensure safety, users are requested to use stainless steel liners as far as possible and not plastic hoses。
3. Gas appliance must be switched to a closed position every time it is used
;each time
The use must be preceded by a confirmation that there is no leakage before the air is activated。
4. When cooking, the kitchen must be under constant care to avoid spilling soup and extinguishing the stove, leading to gas leaks。
5. The total indoor valves must be closed when out, before sleeping at night, and when gas is used for long periods。
6 in the event of a sudden interruption of the supply, the gas appliance switch and the total indoor gas valve shall be shut down at the same time and shall not continue to be used until after normal supply. In order to ensure safety, please do not use gas devices without fire-closing protection。
It's not easy to use gas,
(1) unauthorized removal, alteration of gas installations and appliances shall not be permitted. In the case of dismantling, alteration (e. G. Refurbishment), the construction is carried out by the gas installation and maintenance facility with the appropriate qualifications. The need to move gas metering units and facilities preceding them must be agreed by the gas supply unit。
(2) no gas facilities such as gas pipelines, valves, flow meters, gas appliances, etc. Shall be sealed or installed in a dark room. In walls, ceilings, cabinets, stoves, etc。
(3) there shall be no piles of miscellaneous items or occupants in the rooms where gas meters, valves, etc. Are installed。
(4) the gas pipeline shall not be used to hold electrical cords and ropes in a general form。
(5) the private opening or closing of public valves for gas pipelines is prohibited。
(6) illegal use of gas facilities and theft or diversion of gas is prohibited。
8. Daily omissions should be checked. The usual method is to paint the gas switch interfaces with a brush of soap water, which, when a bubble appears, indicates a leak in the area and does not allow for open fire detection. Problems should be identified by taking timely and effective protective measures and notifying gas unit professionals to handle them。
In order to detect gas leaks in a timely manner, it is recommended to install a domestic gas alarm; an additional fire extinguisher is provided to prevent a fire。
10. If leaks, such as indoor gas installations or gas appliances, are detected, please proceed as follows:,
(1) the prompt closing of the main gas source valve;
(2) the opening, closing or use of electrical appliances or telephones is strictly prohibited, with the aim of cutting off the general outdoors
Power supply;
(3) the extinguishing of all fires;
(4) the prompt opening of doors and windows for the distribution of natural gas to the outdoors;
(5) call the gas company outside the room for repairs and recovery。
(6) when a neighbor's gas leak is discovered, the door shall be knocked and the doorbell shall not be used (preventing a gas explosion from electric sparks);
(7) if the situation is serious, the site should be evacuated immediately and the fire alarm called 911;
(8) the opening of general valves on gas pipelines is strictly prohibited。
Natural gas safety precautions
1. Non-mixable stoves from different sources
Liquefied gas stoves can only use liquefied petroleum gas and not natural gas, otherwise they will not be able to cook. Similarly, natural gas can only be used as a natural gas stove;
2. Prohibition of the private removal and random installation of gas-fired devices
If users need to modify stoves or install or repair plumbing facilities, they must be carried out by specialized technicians of pipeline gas companies, and it is strictly forbidden to alter their clothing;
3. Inspections
Keep an eye on whether the tubes are loose, falling, and tortoise cracking. Current
The elephant;
4. Focus on children's education
(b) educate children not to play with gas stoves and valves;
5. Stay away from the scene
And when natural gas instruments are used, do not be far from it, lest the boiling soup spill out and extinguish the fire or the wind cause the running wind. In case of a sudden breakdown, close the stove and then leave. Watch the kitchen ventilation and keep indoor air fresh;
What if we find a leak
(1) closure of gas valves;
(2) open windows and maintain indoor ventilation;
(3) maintenance of power switches (e. G., exhaust fans, smokers, refrigerators, doorbells, etc.) to avoid sparkling;
(4) call sino-oxygen 24-hour service number 95158 immediately
Fix。
7. Common methods for checking leakages
(1) the smell of leaks;
(2) following water with soap, see if bubbles are produced。
8. Reasons for gas table alarms
(1) indication that the gas surplus is insufficient and that the gas is ready to be purchased;
(2) a reminder that the battery is under pressure to replace the four section v battery required for the gas table。
9. Attention to prohibited matters
(1) it is prohibited to use urban gas pipelines as ground-guides for load support or electrical equipment。
(2) it is strictly forbidden to hang clothes on gas pipelines。
(3) flammable, explosive and corrosive piles of gas equipment are strictly prohibited
Sexual articles。
(4) the presence of a second source of fire, such as a coal-ball furnace, a liquefied gas stove, etc., is strictly prohibited in the kitchen. Maintenance of cooking stoves, dry cloth cleaning after use, and neutral detergent washing when the stains are not easily removed。
(5) users are prohibited from covering and seizing gas pipelines while renovating or decorating rooms, and are strictly forbidden to wrap them in decorations。
10. Reading notes
Gas appliances must be carefully read before being used and learn to use them correctly。
12. Installation in strict compliance with design specifications
According to the national gas pipeline installation design specifications, power switches, electrical plugs, electrical lines at the level of the gas pipeline or the net vertical distance should not be
Less than 300 mm。
