2022 gas examination registration and free gas examination questions

Source of question bank ： Safety production simulation test, a little public official account.

Pass the safety production simulation exam at one point ： The reference answer of gas examination registration and the analysis of gas examination questions are the summary of the one-point general question bank teacher of safety production simulation examination and the students who have passed the gas operation certificate , It is relatively effective to help students pass the gas free examination successfully .

1、【 Single topic selection 】 On gas equipment or separate pipe sections , The number of manholes shall not be less than ( ).（ A ）
A、2
B、3
C、4
2、【 Single topic selection 】 According to the flow direction of gas in the turbine and pneumatic principle ,TRT It belongs to the following kind of turbine .（ B ）
A、 Runoff reaction type ;
B、 Axial flow reaction type ;
C、 Axial flow impulse type ;
D、 Runoff impulse
3、【 Single topic selection 】“ National Health Standards ” Specified in air CO The maximum allowable concentration is ( )mg/m³.（ A ）
A、30
B、50
C、1003
4、【 Single topic selection 】 The function of the drainer in the gas pipeline is ( ).（ B ）
A、 brace
B、 Drain condensate
C、 The relief
5、【 Single topic selection 】100mm The above gas pipeline is on fire ,( ) Cut off the gas at once , In case of tempering and explosion .（ B ）
A、 Sure
B、 You can't
C、 should
6、【 Single topic selection 】 The function of setting compensator on gas pipeline is ( ).（ C ）
A、 Convenient connection
B、 Fixation
C、 Stress relief
7、【 Single topic selection 】 The setting of occupational disease prevention facilities in the workplace shall ( ).（ B ）
A、 Set uniformly according to national standards
B、 Adapt to the prevention of occupational hazards
C、 Set according to the production scale
8、【 Single topic selection 】 Abbreviations in the field of toxic gas detection PC-STEL finger ( )（ A ）
A、 Allowable concentration of short-time exposure
B、 Allowable concentration of long-term exposure
C、 Allowable concentration of indefinite exposure

9、【 Single topic selection 】 The diameter of the manhole on the side plate of the man cabinet entering the piston shall not be less than ( )mm.（ B ）
A、500mm
B、600mm
C、700mm
10、【 Single topic selection 】 Sampling pipe of gas facilities ( ) public .（ B ）
A、 Sure
B、 Can not be
C、 Two facilities are OK
11、【 Single topic selection 】 Carbon monoxide poisoning is caused by inhalation of products from incomplete combustion of carbonaceous substances through respiratory tract , Mainly harming people's ( ) System .（ C ）
A、 breathing
B、 Digestion
C、 nerve
12、【 Single topic selection 】TRT The rated speed of the generator is 3000r/min, The frequency is ( )（ B ）
A、45Hz
B、50Hz
C、55Hz
D、60Hz
13、【 Single topic selection 】 Positive pressure hot work of gas equipment , Positive pressure shall be maintained in the gas pipeline , The minimum pressure should not be less than ( ).（ B ）
A、100Pa
B、200Pa
C、300Pa
14、【 Single topic selection 】 Personnel who have obtained gas special operation certificate , Every time ( ) Retraining once a year .（ C ）
A、1 year
B、2 year
C、3 year
15、【 Single topic selection 】 When the stove is on fire , The combustion system in the furnace has a certain negative pressure , The ignition procedure must ( ).（ A ）
A、 Light the fire first 、 Back on gas
B、 Turn on the gas first 、 Rear ignition
C、 Any order can be
16、【 Single topic selection 】 The dangerous places of gas explosion must be correctly classified , The area where explosive gas may appear during normal production is ( ) District .（ B ）
A、0
B、1
C、2
17、【 Single topic selection 】 The spontaneous combustion point of hydrogen is ( )℃.（ A ）
A、560
B、600
C、650
18、【 Single topic selection 】 The employer causing occupational disease hazards , Should be ( ) Set up bulletin board , Publish rules and regulations on prevention and control of occupational diseases 、 Operating procedures 、 Emergency rescue measures for occupational hazard accidents and test results of occupational hazard factors in the workplace .（ A ）
A、 Eye catching position
B、 The office
C、 Canteen and other crowded places
19、【 Single topic selection 】 Before the gas operator takes the post , The employing unit shall first carry out ( ) education .（ C ）
A、 Before work
B、 Three levels of safety
C、 Professional gas safety protection knowledge
20、【 Single topic selection 】 Enter the gas facility for internal maintenance ,CO The concentration does not exceed 30mg/m³(24ppm) Can work ( ).（ A ）
A、 Working long hours
B、1h
C、0.5h
21、【 Single topic selection 】 For operation with gas, such as gas extraction and blocking blind plate, non sparking tools shall be used , Such as ( ).（ C ）
A、 Copper tools
B、 Iron tools coated with a thick layer of grease
C、 All of the above
22、【 Single topic selection 】 Hot work on running gas equipment , The gas pressure in the equipment shall be maintained ( ).（ B ）
A、 Positive pressure and negative pressure are OK
B、 positive pressure
C、 negative pressure
23、【 Single topic selection 】 The waveform compensator shall be installed in a proper manner ( ).（ A ）
A、 Temperature correction
B、 Suppress
C、 Water injection
24、【 Single topic selection 】 To prevent ponding in the gas pipeline , During pipeline laying, it is necessary to set ( ).（ C ）
A、 Pipe heating device
B、 Pipe booster
C、 Cold condensate drain
25、【 Single topic selection 】 Fill breathing cylinders with ( ).（ A ）
A、 Special air filling pump .
B、 High pressure compressor meeting pressure requirements .
C、 Booster meeting pressure requirements .
26、【 Single topic selection 】CO content 24PPm Time available ( ) Work .（ C ）
A、3 Hours
B、4 Hours
C、 continuity 8 Hours
27、【 Single topic selection 】 Hydrogen and gas pipelines 、 When the oxygen pipeline is laid in equal layers , The hydrogen pipeline shall be located at ( ).（ A ）
A、 upper
B、 middle
C、 below
28、【 Single topic selection 】 The gas holder drainer is mainly used to discharge the gas in the gas holder ( ).（ C ）
A、 water
B、 Dirt
C、 Water and dirt
29、【 Single topic selection 】 In case of gas poisoning, the poisoned person shall be moved out of the dangerous area immediately ( ) Fresh air circulation on the side .（ A ）
A、 upper hand
B、 leeward
C、 It doesn't matter
30、【 Single topic selection 】 The incorrect safety precautions during eye pulling operation are ( ).（ C ）
A、 All sources of ignition are prohibited
B、 The tap should be continuously oiled
C、 After connection, one person shall work on site
31、【 Single topic selection 】TRT Inlet and outlet gas pipes and blowoff pipes , It must be several meters higher than the walking platform of the gas pipeline .（ C ）
A、2M;
B、3M;
C、4M;
D、5M
32、【 Single topic selection 】 The following does not belong to TRT The components of the rotor are ( ).（ D ）
A、 Spindle
B、 Two stage moving blade
C、 Emergency protector
D、 Turning gear
33、【 Single topic selection 】 Abbreviations in the field of toxic gas detection MOS finger ( ) Detection principle （ A ）
A、 Metal oxide semiconductor detector
B、 Catalytic combustion detector
C、 Photoionization detector
34、【 Single topic selection 】 Before and after the gas equipment and pipeline partition device , The branch gate valve is next to the gas main pipe and exceeds ( ) When rice , Vent head should be set .（ A ）
A、0.5
B、0.6
C、0.7
35、【 Single topic selection 】 After the gas booster is overhauled and delivered, check whether all connecting parts and partition devices leak ( ).（ A ）
A、 Gas
B、 nitrogen
C、 air
36、【 Single topic selection 】 The English abbreviation of liquefied natural gas is ( ).（ A ）
A、LPG
B、LNG
C、LTG
37、【 Single topic selection 】 When working in gas areas , The concentration of carbon monoxide exceeds ( ) You must wear a mask when working （ A ）
A、160PPm
B、100PPm
C、50PPm
38、【 Single topic selection 】 Outlet of flow orifice ( ) Extend into the pipe .（ B ）
A、 must
B、 You can't
C、 You can stretch it or not
39、【 Single topic selection 】 When blocking the blind plate, the direction of the asbestos rope on the single-sided blind plate shall be ( ) Direction of gas source .（ A ）
A、 toward
B、 Back to
C、 Facing or facing away from
40、【 Single topic selection 】 Judge whether serious gas poisoning is true death or false death , Should use ( ) Your judgment shall prevail .（ C ）
A、 Leader
B、 Security Officer
C、 Doctor
41、【 Single topic selection 】 Portable measurement CO Concentration instrument , Correct should be called ( ).（ B ）
A、 Gas alarm
B、CO Detector
C、 Gas detector
42、【 Single topic selection 】 The oxygen content of converter gas holder during converter gas recovery must be less than ( ).（ B ）
A、0.01
B、0.02
C、0.03
43、【 Single topic selection 】 According to the harmful effect of harmful gas on human body , Among the following gases, those belonging to cell asphyxiating gases are （ C ）
A、 nitrogen
B、 carbon monoxide
C、 hydrogen sulfide
44、【 Judgment questions 】 The oil level of the oil-water separator is mainly used to control the automatic start and stop of the oil pump .（ × ）
45、【 Judgment questions 】 During hot work during gas facility maintenance , The oxygen content in the facility shall be greater than 19.5%.（ √ ）
46、【 Judgment questions 】 Enterprises should strengthen the safety risk awareness of employees 、 Sense of responsibility , No safety warning education , Enhance the consciousness of employees to comply with regulations .（ × ）
47、【 Judgment questions 】COG It's secondary energy .（ √ ）
48、【 Judgment questions 】 Flange can be used for the connection of gas pipeline and accessories 、 thread , Other parts shall be welded as far as possible .（ √ ）
49、【 Judgment questions 】 The toaster shall be equipped with perfect medium parameter detector and flameout detector .（ √ ）
50、【 Judgment questions 】 The upper limit of dry gas holder must be set 、 Lower limit alarm , Ensure the safe operation of gas holder .（ √ ）
51、【 Judgment questions 】 The calorific value of coke oven gas is about that of natural gas 4 times .（ × ）
52、【 Judgment questions 】 Personnel working in the gas area , Such as carrying gas detection and alarm instruments , There is no need to check the gas content in the workplace , But when the detection and alarm instrument gives an alarm , Evacuate the workplace immediately .（ × ）
53、【 Judgment questions 】 The hydrogen vent pipe shall be equipped with flame arrester , Where conditions permit , It can be connected with fire extinguishing steam or inert gas pipeline , In case of fire .（ √ ）
54、【 Judgment questions 】 The gasholder can be divided into dry gasholder and wet gasholder according to its sealing mode .（ √ ）
55、【 Judgment questions 】 Gas poisoning accident occurs in emergency or special circumstances , Rescuers can use gauze masks or other appliances that are not suitable for preventing gas poisoning （ × ）
56、【 Judgment questions 】 Air saturation temperature refers to the temperature when air and steam are mixed to reach saturation （ √ ）
57、【 Judgment questions 】 When gas facilities explode , There will be no fire accidents at the same time .（ × ）
58、【 Judgment questions 】 Before the maintenance of gas facilities , Open the manhole of the facility first 、 After cleaning holes and blowoff pipes , The maintenance work can be carried out .（ × ）
59、【 Judgment questions 】 Before finding out the cause of the gas accident and taking necessary safety measures , Gas supply to gas facilities should not be resumed .（ √ ）
60、【 Judgment questions 】 Professional ethics can make certain social or class moral principles and norms “ Professionalization ”, It can also make personal moral character “ Maturity ”, It has strong stability and continuity .（ √ ）
61、【 Judgment questions 】 Mild gas poisoning, if you can quickly get out of the poisoned environment , Breathe in the fresh air , Symptoms can quickly disappear ; For moderate poisoning, if timely rescue , Usually wake up within a few hours , Recover in a few days .（ √ ）
62、【 Judgment questions 】 Gas purification facilities operate under negative pressure , therefore , There are not too many security problems .（ × ）
63、【 Judgment questions 】 When the piston is running , Always monitor the piston position , Absolutely prevent the piston from contacting the cabinet top 、 The bottom plate collides violently .（ √ ）
64、【 Judgment questions 】 The coke oven gas exchange device should turn off the gas first , Exchange air after 、 waste gas , Finally, turn on the gas in sequence .（ √ ）
65、【 Judgment questions 】 There are fire prevention measures for hot work of gas equipment ( Hot work permit system shall be adopted ), Gas welding can be used for hot work with gas .（ × ）
66、【 Judgment questions 】 Respiratory protective equipment should be kept in a clean place 、 dry 、 No oil stain 、 A place free from direct sunlight and corrosive gases .（ √ ）
67、【 Judgment questions 】 When underground gas pipelines cross railways and roads , It shall be laid in casing .（ √ ）
68、【 Judgment questions 】 When hot work is carried out on gas pipelines or equipment in operation, the gas pressure should be maintained at a stable positive pressure .（ √ ）
69、【 Judgment questions 】 The main person in charge of the production and business operation unit shall bear the main leadership responsibility in the accident report and rescue , Must be performed in a timely manner 、 Legal obligation to truthfully report production safety accidents .（ √ ）
70、【 Judgment questions 】 The specific gravity of coke oven gas is 0.3518.（ √ ）
71、【 Judgment questions 】COG The odorous gas in is N2.（ × ）
72、【 Judgment questions 】 The pressure equalizing pipe of the turbine is used to balance the gas pressure at the two shaft sealing ends .（ √ ）
73、【 Judgment questions 】 The factors causing the resistance of gas facilities include pipeline resistance and along the way resistance .（ × ）
74、【 Judgment questions 】 The recovery of converter gas can reach 72m³/ Ton steel .（ √ ）
75、【 Judgment questions 】 Tempering refers to when the tassel of mixed gas is faster than the flame speed , The flame returned to the burner .（ × ）
76、【 Judgment questions 】 In case of leakage of blast furnace gas pipeline , It sinks 、 Downward diffusion .（ √ ）
77、【 Judgment questions 】 The highest part of the hot blast stove pipeline and between the combustion valve and the gas cut-off valve shall be provided with a gas discharge pipe .（ √ ）
78、【 Judgment questions 】 When the gas holder is running , Pay close attention to the running speed of the piston , Prevent overspeed operation .（ √ ）
79、【 Judgment questions 】 The turbine moving blade is the force bearing surface of gas expansion .（ √ ）
80、【 Judgment questions 】 Employees in the process of operation , It shall strictly abide by the safety production rules, regulations and operating procedures of the unit , Obey management , Correctly wear and use labor protection articles .（ √ ）
81、【 Judgment questions 】 In order to facilitate the spontaneous breathing of people with gas poisoning , Neckline 、 The belt should be untied , Take off your wet clothes , Keep the poisoned person warm in winter or early spring , To avoid catching cold （ √ ）
82、【 Judgment questions 】 Although the contents and characteristics of professional activities in different industries are different , But their professional ethics are basically the same .（ × ）
83、【 Judgment questions 】TRT Stop production for maintenance , Clean the residual gas , After passing the test , Hot work can be carried out directly , No more nitrogen or steam .（ × ）
84、【 Judgment questions 】 Ferroalloy closed electric furnace gas composition O₂ The content should be controlled within 2% following .（ √ ）
85、【 Judgment questions 】 The water tank is installed at the lowest point of the gas pipeline .（ √ ）
86、【 Judgment questions 】TRT Non synchronous grid connection may cause grid voltage oscillation .（ √ ）
87、【 Judgment questions 】 The function of venturi is to remove dust and reduce temperature .（ √ ）
88、【 Judgment questions 】 In dangerous areas where gas equipment, facilities and personnel work , Explosion detector shall be installed .（ × ）
89、【 Judgment questions 】CCPP It is the abbreviation of gas steam combined cycle generator set .（ √ ）
90、【 Judgment questions 】 The rotating equipment is allowed to be wiped during operation 、 Touch the rotating part .（ × ）
91、【 Judgment questions 】 On gas equipment and facilities , Steam and nitrogen purge pipes shall be connected .（ × ）
92、【 Judgment questions 】 The color code of coke oven gas pipeline is bright red .（ × ）
93、【 Judgment questions 】 The gas cylinder filling station shall be equipped with solid cylinder warehouse and empty cylinder warehouse .（ × ）
94、【 Judgment questions 】 The air blower of the gas generator shall have two power supplies （ √ ）
95、【 Judgment questions 】 The main components of coke oven gas are H2S,CO2.（ × ）
96、【 Judgment questions 】 The working principle of blast furnace gas dry dust collector is to separate the dust particles in the gas from the gas to achieve the purpose of dust removal .（ √ ）
97、【 Judgment questions 】 Before the test, the gas pipeline must be separated from other pipelines and equipment with blind plates .（ √ ）
98、【 Judgment questions 】 Blast furnace gas is produced from blast furnace ironmaking , It is not a kind of artificial gas .（ × ）
99、【 Judgment questions 】 The thin oil sealed gas holder must ensure the operation and maintenance of the axial flow fan in the pump station CO The content does not exceed the standard .（ √ ）
100、【 Judgment questions 】 To prevent the piston from rotating horizontally , Anti rotation device should be set .（ √ ）
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