Source of question bank: Safety production mock exam, WeChat public account mini program
In 2021, how much gas will pass and the gas mock test questions, including how much gas will pass the answer and analysis, and gas mock test questions. Combining the latest syllabus of the National Gas Examination and the summary of the real gas examination questions from the official account of the safety production mock examination, Yidiantong, is helpful for practice before the gas mock examination system.
1. [True or True] When the coke oven gas pipeline that has been discontinued is on fire, you can stop steam and fire after purging the pipeline with steam. (×)
2. [True/Judgement] The detection alarm point refers to the location (location) where the toxic gas detection alarm is implemented (√)
3. [Judgement Questions] Metallurgical enterprises shall regularly inspect and verify safety equipment and safety protection devices. For equipment that has not been inspected and verified on time, the operator has the right to refuse to use and refuse to work. (√)
4. [Judgement question] The installation direction of the flow orifice plate of the gas pipeline is the orifice surface facing away from the gas source (×)
5. [True/True Question] Personnel entering the gas tank shall not wear shoes and socks that can generate sparks. (√)
6. [True and True] When working on a gas pipeline, a pressure gauge should be installed near the hot spot, and the pressure gauge should be guarded by someone. (√)
7. [Judgment] Once an electric shock accident occurs, measures should be taken immediately to remove the electric shocker from the power source. If the power source cannot be cut off without tools, the rescuer should quickly pull the electric shocker away from the power source. (×)
8. [Judgment] The reliable cut-off of the cut-off device includes: flapper valve, blind plate, and NK water seal valve. (√)
9. [Judgement] The basement of the coke oven should be ventilated, and there should be safe exits at both ends. (√)
10. [True and True] The main indicators of the mixed gas of the gas mixing station are the pressure of the mixed gas and the heating value of the mixed gas. (√)
11. [True/True Question] The gas purification facility operates under negative pressure, so there is no major safety issue. (×)
12. [Judgment] The alarm controller should be matched with the detector, can receive and process toxic gas detection signals, realize the display and alarm of the detection signals, and also have control, data storage and signal transmission functions (√)
13. [True and True] As long as there is no gas leakage, gate valves, butterfly valves, ball valves, NK valves, etc. can be used as reliable shut-off devices. (×)
14. [True and True] The ignition temperature of blast furnace gas is basically the same as that of coke oven gas. (×)
15. [Judgment] When an enterprise employee discovers an emergency that directly endangers personal safety, he has the right to stop the operation, but cannot evacuate the workplace. (×)
16. [True/True Question] The overhead laying of gas pipelines should not pass through buildings, offices, air intake ducts, power distribution rooms, and substations that do not use gas. (√)
17. [True/True Question] A funnel should be provided at the full-flow nozzle of the drain. If the drain is equipped with a water supply pipe, water should be supplied through the funnel. (√)
18. [True/True Questions] For personnel who have changed positions in gas tanks, if the work nature is similar, they do not need to conduct safety operation education and training for new positions. (×)
19. [True/True Question] When the gas tank is overhauled, it is not necessary to remove the gas from the ash before entering the thick ash floor of the cabinet (×)
20. [Judgement Questions] According to the degree of danger of the hot work, the hot work is divided into three categories: first-level hot work, second-level hot work, and third-level hot work. (√)
21. [True and True] For people with heavier gas poisoning, they should be sent to a nearby health center for treatment immediately (×)
22. [True or True] At least one handle with a square eye is left on the blind plate, the purpose of which is to distinguish between the blind plate and the washer. (√)
23. [True and True] The indoor pipeline in front of the pressurizer uses an internal pressure of 1020mmH2O than the outdoor pipeline because the indoor pipeline is more important than the outdoor pipeline. (×)
24. [True Question] The water seal device including the drain must be able to check the height of the water seal and the drain outlet of the high water level overflow, and the cleaning hole of the water seal device must be leaking. (√)
25. [Judgement] When the calculated pressure of the gas pipeline is greater than or equal to 100kPa, a strength test should be carried out. After the strength test is qualified, a tightness test is not necessary. (×)
26. [True and True] For gas facilities that are overhauled or out of service for a long time, the upper and lower manholes, vent pipes, etc. should be opened to maintain natural ventilation inside the facilities. (√)
27. [True and True] When there is a large amount of condensate in the gas pipeline, it will be propelled by the gas, which will cause the gas pressure to fluctuate. In the severe case, the gas pressure will fluctuate. (√)
28. [True/Treatment] Basement and equipment can be installed under the pressurizing station workshop. (×)
29. [True/Treatment] When the TRT reactor is overhauled, the order of installation and removal of the ground wire: When installing, connect the ground terminal first, then the bus terminal; when removing, remove the bus terminal first, then the ground terminal. (√)
30. [Judgment] The legal effect of safety production administrative regulations is greater than that of safety administrative regulations. (×)
31. [True and True] The function of the blast furnace pressure reducing valve group is to reduce the gas from the blast furnace from the furnace top pressure to the external supply pressure. (√)
32. [True and True] The distance between the drains is generally 200~250m. (√)
33. [True and True] The start and stop of the oil pump of the thin oil sealed gas tank is controlled by the float level controller. (√)
34. [True and True] work in the gas facility, as long as the gas content cannot be detected, you can work. (×)
35. [True/True Question] Gas explosion accidents are often accompanied by fire and leakage accidents. (√)
36. [Judgement question] If a fire occurs on the Yongxing gas pipeline, temporary grounding wires must be installed on both sides of the hot spot, and the grounding resistance should be greater than 4Ω. (×)
37. [True/Judgement] When gas replacement is performed by gas supply, whether the standard is reached should be determined according to the explosion test. (√)
38. [Single-choice questions] Accidents such as gas poisoning, fire, explosion, and large gas leakage should be reported immediately (). (A)
A. Dispatching room and gas protection station
B. Workshop director
C. On-duty leader
39. [Single-choice question] The gas enters the turbine through () to turn the gas into the axial direction and enters the cascade (). (B)
A, deflector
B. Diffuser
C, static leaves
D. Moving blade
40. [Single-choice question] To provide employers with equipment that may cause occupational hazards, they should provide Chinese manuals, and set () and Chinese warning instructions in a prominent position of the equipment. (B)
A. Safety signs
B. Warning signs
C, English
41. [Single-choice question] TRT quick-cut valve manhole inspection and repairing fire must be blown clean of residual gas, and its oxygen content reaches () before fire. (A)
A、20%
B、12%
C、6%
D、2%
42. [Single-choice question] When the gas facility is overhauled, the CO concentration in the space is 80PPm, and the continuous operation time of the overhaul personnel should not exceed () minutes. (B)
A、20
B、30
C、40
43. [Single-choice question] The gas pipeline is on fire. If the pipeline diameter is below (), you can directly cut off the gas to extinguish the fire. (A)
A、100mm
B、125mm
C、150mm
44. [Single-choice question] The lighting voltage used in the operation of the gas equipment shall not be higher than ()V. (B)
A、36
B、12
C、24
45. [Single-choice question] The upper limb arterial bleeding should be ligated at ()1/3 of the upper arm. (A)
A, on
B. Medium
C, down
46. [Single-choice question] When the open-pit mine road transportation stops on the ramp, the driver's improper practices include ()m. (A)
A. For safety, the driver leaves
B. Take necessary safety measures
C. Use parking brake
47. [Single-choice question] According to the "Industrial Enterprise Gas Safety Regulations", it is strictly forbidden to bolt or pull the welding wire on the gas facilities during the purging or bleeding process. Fire sources are strictly prohibited within () meters around the gas facilities. (B)
A、50
B、40
C、20
48. [Single choice] In the use and maintenance of gas protection equipment, if the pressure of the oxygen breathing apparatus is lower than (), you should go to the gas protection station to inflate immediately (A)
A、10MPa
B 、 8MPa
C 、 5Mpa
49. [Single-choice questions] The detection and alarm points set outdoors should generally be set at the position of the dominant wind direction () all year round (B)
A. Upwind
B. Downwind
C. Left wind direction
50. [Single-choice question] The operating switch that should not be selected when installing a partition device for gas pipes larger than DN300 is () (C)
A, electric
B. Hydraulic
C, manual
D, pneumatic
The above are the 2021 gas scores and gas mock test questions. Support the examination questions of precision gas operation in all regions of the country, and support the exercises in the question bank for safety qualification certificates, special operation certificates, and vocational skills identification.