Right and wrong (what do you think is right? , wrong number? )

1. Users hang clothes on the gas stove to bake. (? )

2. The two main types of patrol work are patrol workers and pumping workers. (? )

3. The function of gas storage tank is to store gas and adjust pressure. (? )

4. The pressure of the low-pressure gas storage tank is 0.8 MPa-65438±0.6 MPa. (? )

5. When the gas holder was replaced, due to the shortage of personnel, a worker operated on the gas holder with illness. (? )

Second, fill in the blanks

1. Steel pipes are welded and flanged.

2. Low-pressure gas storage tanks can be divided into wet, dry and two types according to the sealing method.

3. Indoor gas pipeline layout requirements are: good ventilation conditions and emergency exhaust capacity.

4. The laying methods of user's lead-in pipes are generally divided into indoor lead-in method and outdoor lead-in method.

5. Indoor gas pipelines are generally overhauled once every 1-2 years.

Third, multiple choice questions

1, after the pipeline network is put into production, the two major tasks of management are (a)

A, pipeline patrol, pumping, leak detection, daily maintenance and accident treatment.

B, inspection and maintenance

C, construction and accident treatment

2. When depressurizing, the pressure shall be controlled by special personnel, and the gas pressure in the tube shall not be lower than (b).

A, 1000 pa b, 500 pa c, 2000 pa

3, voltage regulator according to the principle of action is divided into (a)

D, direct action and indirect action

E, high pressure type and low pressure type

F, automatic and manual

4. The vertical clear distance from the bottom of the overhead gas pipeline to the pavement should not be less than (c).

a， 12m b，5m c，2.2m。

Fourth, answer questions,

1, what is replacement work?

Answer: the replacement work is to replace the air in the pipeline facilities with gas, or to replace the air with nitrogen, and then to replace the nitrogen with gas.

2. What requirements should the odor dose in the gas meet?

Answer: (1) Toxic gas leaks into the air and should be detected before reaching the allowable harmful concentration to human body.

(2) When non-toxic gas leaks into the air and reaches 20% of the lower explosion limit, it should be tested.

3. When the pipeline network is inspected, under what circumstances should it be strengthened?

Answer: (1) Gas pipelines and equipment in densely populated areas.

(2) Gas pipelines and equipment crossing railways, rivers, culverts and other areas.

(3) Areas with frequent construction.

(4) Newly put into production of gas pipelines and equipment.

(5) Important gas pipelines and equipment.

Test questions on gas safety knowledge (4)

Fill in the blanks

1. If the gas pipeline has not been put into use (3 months), it should be re-accepted when it is used again.

2. After pipeline excavation, the backfill soil should be higher than the ground height (0.4m), and the compaction degree should reach more than 90% of the original soil.

3. The indoor gas pipeline strength test pressure is (1 kg) and the air tightness test pressure is (7000 Pa).

4. Most production accidents are caused by? Three violations? , specifically: (illegal command), (illegal operation), (violation of labor discipline).

5. Town gas includes (natural gas), (liquefied petroleum gas) and (artificial gas).

6. The gas pipeline for transporting gas should be buried below (soil freezing line) with a slope of not less than (3 0/00). It is forbidden to go downhill.

7, the principle of fire fighting is (cooling, suffocation, isolation, chemical inhibition).

8. Leak detection methods for gas pipelines above the ground are (soap method), (odor method) and (instrument detection method).

9. The calorific value of gas is about (4,300 kcal/m3), that of natural gas is about (8,500 kcal/m3) and that of liquefied petroleum gas is about (1 1000 kcal/kg).

10, the explosion limits of coke oven gas, liquefied petroleum gas and natural gas are about (5% ~ 36%), (1.7% ~ 9.7%) and (5% ~ 15%) respectively.

1 1. Indoor air supply pressure of residents (750 Pa? 1500 Pa)。

12. The hose connecting gas appliance should be replaced regularly, and it is forbidden to use (expired) hoses.

13, the principles of safety production management are: (safety first), (prevention first) and (comprehensive management).

14, level 3 safety education means:? (company level, department level, team level)? Safety education.

15. What are the potential safety hazards? (unsafe people's behavior), (unsafe equipment defects), (unsafe environmental factors). ?

16. Characteristics of fuel gas: (flammable, explosive and toxic).

17, gas safety management? Three defenses? Yes: (fire prevention, explosion prevention, gas prevention).

18, construction safety? Three at once? Refers to the safety guarantee facilities and the main project (designed, constructed and accepted at the same time) put into production.

19, handling safety accidents? Four don't let go? The principles are: (Don't let go if the cause of the accident is not found out), (Don't let go if the preventive measures for similar accidents are not formulated), (Don't let go if the person in charge of the accident has not dealt with it), and (Don't let go if the person in charge of the accident and relevant personnel have not been educated).

20. Important gas facilities or important parts must be provided with safety (warning) signs and protective devices.

2 1, safe production? Three doesn't hurt? It means: (don't hurt yourself), (don't hurt others), (don't be hurt by others).

22. The equipment of each department should be used correctly, and the double-package system should be implemented, that is, (package maintenance and maintenance), so that each equipment has special personnel to maintain and repair it.

23, city gas facilities operation, maintenance and repair units and departments should establish the corresponding step by step (safety target) responsibility system.

Second, multiple choice questions

1, fire control work to carry out the policy of (b).

A, nip in the bud b, prevention first, combining prevention with elimination.

C, prevent fire, reduce fire hazards d, protect citizens' personal and property safety.

2, the principle of fire control work is (a).

A, specialized agencies combined with the masses b, formulate fire safety system.

C, implement the fire safety responsibility system d, organize fire inspection.

3. Key fire safety units shall conduct at least (c) fire safety training for each employee.

A, every two months b, every six months c, every year d, every quarter.

4, for the crime of fire, according to the provisions of the "People's Republic of China (PRC) Criminal Law" (b).

A, 4 years of fixed-term imprisonment or criminal detention B, 3 years to 7 years of fixed-term imprisonment.

C, fixed-term imprisonment of more than 7 years D, life imprisonment

5. Fire classification? Answer? It means (b).

A, liquid fire b, solid fire c, metal fire d, gas fire

6, any unit, (a) have the obligation to participate in organized fire fighting work.

A, adult citizen B, individual C, citizen D, employee

7.(c) Everyone has the obligation to maintain fire safety, protect fire control facilities, prevent fire and report fire.

A, enterprises and institutions B, citizens C, any unit or individual D, citizens

8. The following substance (a) is the ignition source.

A, EDM b, paper c, wood

9, the following description of the alarm phone is incorrect (c).

A, 1 19 the call is free. B in case of fire, anyone can call 1 19 C for free. For drills, you can usually call 1 19.

10, the following (a) fire extinguishing agent is the best choice to put out the fire of precision instruments.

A, carbon dioxide extinguishing agent B, dry powder extinguishing agent C and foam extinguishing agent

Third, question and answer.

1. How to use the portable dry powder fire extinguisher?

(1) Open the safety pin; (2) point the hose towards the ignition point; (3) Press the handle hard, select the upwind position near the ignition point, aim the dry powder at the root of the flame, and spray it left and right; (4) After fire extinguishing, cool with water to eliminate smoke.

2. What are the advantages of pipeline gas?

(1) No residual liquid; (2) Easy to use; (3) high safety performance; (4) No residual gas and reasonable charging.

3. What are the rescue measures after carbon monoxide poisoning?

(1) immediately open the doors and windows for ventilation and quickly close the gas valve to cut off the gas source;

(2) Immediately move the poisoned person to a place with fresh air, unbutton the button and belt of the poisoned person, remove foreign bodies and dentures from the poisoned person's mouth, lie flat on his back, and raise his head to avoid the tongue from blocking his throat backwards;

(3) oxygen inhalation or artificial respiration;

(4) In the process of rescue, we must avoid the violent activities of the poisoned person.

4. What is the task of line inspection?

(1) Check whether there is air leakage; (2) Observe the situation along the pipeline; (3) pumping water regularly; (4) measuring the pressure of the pipeline;

(5) If problems are found, handle them in time, restore them to their original state, and report those that cannot be handled in time.

5. What are the provisions of the safety operation procedures for live wiring?

(1) There must be a clear on-site person in charge and operators familiar with gas operation technology;

(2) Take the operation pit as the center, set up a safety zone within 20 meters around, and assign personnel to monitor it. There shall be no fire source in the safe area.

(3) Operators are forbidden to wear chemical fiber clothes and must wear gas masks;

(4) When depressurizing, the gas pressure should be controlled at 40? 60mmH2O column to avoid negative pressure;

(5) When working with gas at night or in the dark, use explosion-proof lamps for lighting, and it is forbidden to use ordinary lamps or open flames for lighting;

(6) Strictly check the quality of the connector and check the leakage with soapy water. It is forbidden to check with naked flame.

6. What are the safety operation procedures for gas users?

(1) Use gas equipment and appliances correctly, and it is forbidden to use unqualified equipment and appliances or those that have reached the retirement age.

(2) The gas pipeline shall not be altered without authorization, and the gas equipment and appliances shall not be dismantled, modified or moved without authorization.

(3) In the room where gas facilities are installed, sundries, personnel and open flames shall not be piled up.

(4) When users find abnormal situations such as gas leakage, they should close the valve, open the window for ventilation, cut off the power supply in a safe place, prohibit the use of naked flame, and report to the gas company for repair in time.

(5) The rubber hose should be replaced regularly, and expired rubber hose is strictly prohibited.

(6) Assist the gas company to check the gas facilities.

7. What are the installation requirements for gas meters?

(1) must be installed horizontally and vertically; (2) Good ventilation, dryness and lighting, with room temperature between 0℃ and 45℃; (3) The distance between the table and the wall? 30㎜; (4) Is the bottom of the high table far from the ground? 1.8m； (5) Is the low table off the ground? 0. 1m is convenient for maintenance.

8. What are the requirements for indoor pipeline location?

(1) Good ventilation, dryness, good lighting and convenient maintenance; (2) There are no open flames, overheated articles, inflammable and explosive articles, corrosive gases and liquids nearby; (3) The distance between the pipe wall and the wall? 50㎜; (4) The horizontal clear distance between socket, power switch and wire should be? 15cm； (5) If it is not a dormitory and needs to cross the dormitory, it can be set in a jointless sleeve.