Question bank source: Production Safety Simulation Examination Yitong Official Account Mini Program 2022 Explosion-proof Electrical National Question Bank Department Explosion-proof Electrical Examination Question Bank New Edition Exercise Bank! The 2022 explosion-proof electrica

2025/04/2804:35:38 education 1844

question bank source: Production Safety Simulation Examination Yitong Official Account Mini Program

2022 Explosion-proof Electrical National Question Bank Department Explosion-proof Electrical Examination Question Bank New Edition Exercise Bank! The 2022 explosion-proof electrical test questions and mock exams are based on the new version of explosion-proof electrical test question bank. Explosion-proof electrical examination materials can be practiced at any time according to the production safety simulation examination.

1. [Single choice question]____ is one of the necessary process and technical documents for repair units. (C)

A, certificate of use of the product to be repaired

B, unit quality system file

C, repair operation instructions

2, [Single choice question] The following electrical equipment used in explosive hazardous gas environments, whose explosion-proof mark does not meet the requirements, is (). (A)

A, Ex dIIICT4

B, Ex dⅠ

C, Ex eⅠ/IIBT5

3, [Single choice question] The following are the symbols of several types of explosion-proof electrical equipment. The one that is not suitable for the 0-zone environment is (). (D)

B, Xmb

D, Xma

F, Xia

4, [Single choice question] The following explosion-proof signs are ____ Electrical equipment cannot be used in chemical factory area 0. (38/39,182~184) (B)

B, xia

D, xd

E, xd

F, xd

5, [Single choice question] If the amount of oil is insufficient, you need to add the () that has passed the inspection. (B)

A, diesel

B, Transformer Oil

C, kerosene

6, [Single choice question] During normal operation, an explosive gas environment cannot occur. If it occurs, it will occur occasionally and only exist for a short time. The place is divided into () zone. (B)

A, 0

B, 2

C, 1

7, [Single choice question] In the pits and dead corners of obstacles, the local () explosion hazard area level should be level. (A)

A, improve

B, reduce

C, maintain the original

8, [Single choice question] Changes in the shape or function of the structural materials of electrical equipment are called (). (A)

A, modification

B, repair mark

C, repair certificate

9, [Single choice question] The combustible dust environment has been classified into zone 21. If the diffusion of dust is restricted by (), their surface can be used as the boundary of the area. (C)

A, tree fence

B, metal mesh structure fence

C, solid structure (such as wall)

10, [Single choice question] When there are more than two combustible gases in the environment, the temperature group should be selected according to the gas of (). (B)

A, high density

B, low ignition temperature

C, high ignition temperature

11, [Single choice question] According to the provisions of GB3836.1-2010, the atmospheric pressure conditions of the use environment of explosion-proof electrical equipment is (). (C)

A, 90kPa—120kPa

B, 90kPa—110kPa

C, 80kPa—110kPa

12, [Single choice question] intrinsically safe circuits and electrical equipment belong to the explosion-proof use (). (A)

A, limit spark energy

B, reduce spark

C, isolate

13 with medium 13, [Single choice question] A factory production workshop produces a non-conductive food raw material. The minimum ignition temperature of this raw material is Tcl=170℃. Regardless of the thickness of dust accumulation, the temperature group of Class B equipment should be selected is (). (A)

A, T5

B, T4

C, T6

14, [Single choice question] The following is not the most common structural form of concrete components is ().

question bank source: Production Safety Simulation Examination Yitong Official Account Mini Program

1. [Single choice question]____ is one of the necessary process and technical documents for repair units. (C)

A, certificate of use of the product to be repaired

B, unit quality system file

C, repair operation instructions

2, [Single choice question] The following electrical equipment used in explosive hazardous gas environments, whose explosion-proof mark does not meet the requirements, is (). (A)

A, Ex dIIICT4

B, Ex dⅠ

C, Ex eⅠ/IIBT5

3, [Single choice question] The following are the symbols of several types of explosion-proof electrical equipment. The one that is not suitable for the 0-zone environment is (). (D)

B, Xmb

D, Xma

F, Xia

4, [Single choice question] The following explosion-proof signs are ____ Electrical equipment cannot be used in chemical factory area 0. (38/39,182~184) (B)

B, xia

D, xd

E, xd

F, xd

5, [Single choice question] If the amount of oil is insufficient, you need to add the () that has passed the inspection. (B)

A, diesel

B, Transformer Oil

C, kerosene

A, 0

B, 2

C, 1

7, [Single choice question] In the pits and dead corners of obstacles, the local () explosion hazard area level should be level. (A)

A, improve

B, reduce

C, maintain the original

8, [Single choice question] Changes in the shape or function of the structural materials of electrical equipment are called (). (A)

A, modification

B, repair mark

C, repair certificate

9, [Single choice question] The combustible dust environment has been classified into zone 21. If the diffusion of dust is restricted by (), their surface can be used as the boundary of the area. (C)

A, tree fence

B, metal mesh structure fence

C, solid structure (such as wall)

10, [Single choice question] When there are more than two combustible gases in the environment, the temperature group should be selected according to the gas of (). (B)

A, high density

B, low ignition temperature

C, high ignition temperature

11, [Single choice question] According to the provisions of GB3836.1-2010, the atmospheric pressure conditions of the use environment of explosion-proof electrical equipment is (). (C)

A, 90kPa—120kPa

B, 90kPa—110kPa

C, 80kPa—110kPa

12, [Single choice question] intrinsically safe circuits and electrical equipment belong to the explosion-proof use (). (A)

A, limit spark energy

B, reduce spark

C, isolate

A, T5

B, T4

C, T6

14, [Single choice question] The following is not the most common structural form of concrete components is ().(B)

A, prefabricated parts

B, spray concrete

C, on-site pouring concrete pillars

15, [Single choice question] A certain electrical instrument with the nameplate marked "DIPB21TBT3" means that this instrument is suitable for () bad situation. (C)

A, coal mine

B, explosive gas

C, combustible dust

16, [Single choice question] The ignition temperature measured by a certain flour in a dust cloud state is 380 degrees Celsius; the ignition temperature measured under 5mm stacking is 300 degrees Celsius. The temperature group of type A equipment selected should be ____. (B)

A, T4

B, T3

C, T6

17, [Single choice question] The main harm of using spoiled explosives is (). (B)

B during blasting,

C, hinder

C, affecting the blasting effect

18, [Single choice question] can cage in the lift container can be divided into ( ) according to the number of wire ropes. (A)

A, multi-rope can cage and single-rope can cage

B, single-layer can cage and multi-layer can cage

C, ordinary can cage and bucket can cage

19, [Single choice question] The temperature of saturated steam is related to pressure. The higher the pressure, the saturated steam temperature (). (C)

A, the lower the

B, the unchanged

C, the higher the

20, [Single choice question] According to the provisions of the " Safety Production Law ", the emergency rescue organization can be not established (). (B)

A, mines, construction units

B, units with small production and operation scale

C, production, operation and storage units of dangerous goods

21, [Single choice question] After the water ring vacuum extraction pump stops operation, the ( ) in the pipeline and equipment must be put into operation according to regulations. (B)

A, oil

B, water

C, gas

22, [Single choice question] When the net distance between metal pipes on non-metallic frames in explosion hazardous areas is less than ()mm, metal wires should be used to cross. (B)

A, 150

B, 100

C, 200

23, [Single choice question] In order to ensure the safe operation of the improvement equipment, the requirements and working principles of the improvement driver must be implemented (). (C)

A, understand and know

B, have heard of

C, are familiar with and master

24, [Single choice question] In explosion hazardous places, grounding trunk line should be connected to the grounding body in different directions, and the connection should not be less than (). (C)

A, 1

B, 4

C, 2

25, [Single choice question] water permeability accident will not occur before occurs (). (C)

A, hang sweat

B, air cooled

C, pressure reduction

26, [Single choice question] blowout accident includes well surge, blowout out of control, blowout ignition and explosion, and (). (B)

A, well leakage accident

B, harmful gas leakage out-of-control accident

C, formation strata accident

27, [Single choice question] Explosive gas environment Zone 1 Zone 2 Portable and movable electrical equipment can be used as the minimum cross-sectional area of portable and movable electrical equipment is () square millimeter . (A)

A, 1

B, 1.5

C, 2

28, [Single choice question] The ignition temperature of the explosive mixture of is also called (). (A)

A, self-ignition temperature

B, fire temperature

C, ignition temperature

29, [Single choice question] When the length of distribution room exceeds ()m, two outlets should be set up and should be arranged at both ends of the distribution room. (A)

A, 7

B, 6

C, 5

30, [Single choice question] When an explosive gaseous environmental electrical wiring conduit passes through adjacent partition walls in different hazardous areas, a ()-type isolation seal should be installed on any side of the partition wall.(B)

A, vertical

B, horizontal

C, one-way

31, [Single choice question] During the time when the shift is handed over, it is necessary ( ). (A)

A, the operator of the positive elevator, the operator of the secondary elevator monitors

B, the operator of the secondary elevator, the operator of the positive elevator monitors

C, the operator of the primary and secondary elevator operates, and does not need to monitor

32. [Single choice question] When the electrical wiring conduit of the explosive gas environment passes through the wall, floor, and floor, the distance between the isolation seal and the wall, floor, and floor should not exceed ()mm. "Safe production simulation exam one-time pass" (C)

A, 100

B, 200

C, 300

33, [Single choice question] The accident emergency rescue system does not include (). (B)

A, emergency rescue command

B, emergency rescue drill

C, emergency rescue daily duty

34, [Single choice question] When replacing the battery of the explosion-proof multimeter, you must be in (). (C)

B, 2

C, safe area

35, [Single choice question] When using a locomotive to transport explosive materials from underground, the speed of the train shall not exceed (). (B)

A, 1m/s

B, 2m/s

C, 3m/s

D, 4m/s

36, [Single choice question] The combustion that loses control in time or space is called (). (B)

A, flash ignition

B, fire

C, spontaneous combustion

37, [Single choice question] According to the provisions of the "Production Safety Law", the one that can not establish an emergency rescue organization is (). (B)

A, mines, construction units

B, small production and operation units

C, production, operation and storage units of dangerous goods

38, [Single choice question] The flow characteristic of regulation valve when using the regulation system is (). (B)

A, ideal traffic characteristics

B, working characteristics

C, correction characteristics

39, [Single choice question] The drill bit should be used to enter the drill bit box (). (C)

A, lifting wire shield

B, special drill bit wire lift

C, artificial

40, [Single choice question] inductance coil can ( ). (B)

A, traffic resistance direct

B, traffic resistance direct

C, traffic resistance direct

41, [Single choice question] The anti-static grounding wire should be installed, and the grounding terminal or bolts should be connected to the equipment, unit, storage tank, etc., and the diameter of the grounding bolt should not be less than (). (B)

A, M6

B, M10

C, M8

42, [Single choice question] When the safety factor of the wire rope specially used for lifting personnel is less than ( ), it must be replaced. (A)

A, 7

B, 6

C, 5

43, [Single choice question] The heat transfer between "pot" and "furnace" is carried out through (). (A)

A, heat transfer process

B, combustion process

C, vaporization process

44, [Single choice question] () When installing a valve, special attention should be paid to the direction of the medium entering and exiting the valve, so that it "low in and high out". (C)

A, ball valve

B, gate valve

C, shutdown valve

45, [Single choice question] Dust containing more than 210% of free silica html is called (). (C)

A, electric welding smoke

B, asbestos dust

C, silicon dust

46, [Single choice question] Before the main control valve on the fuel supply main pipe, a () quick shutdown valve should be installed in a safe and convenient operation place.(B)

A, automatic

B, manual

C, electric

47, [Single choice question] In the design of explosion-proof shell, the fastener should be ____; the magnesium content of the material should be ____. (A)

A, with anti-loosening measures; ≤6%

B, fine threads are used; ≤6%

C, fasten with nuts; ≤10%

48, [Single choice question] The basic protective measures used on electrical equipment to prevent dust explosions are to make the shell (). (C)

A, plasticized

B, open

C, fully enclosed

49, [Single choice question] Crude oil flows into the water body will cause (). (A)

A, water pollution

B, air pollution

C, soil pollution

50, [Single choice question] The safety production management agency refers to an internal organization in the production and operation unit that is specialized in the supervision and management of production safety production, and its staff are ( ) safety production management personnel. (A)

A, full-time

B, part-time

C, full-time or part-time

51, [Single choice question] When lifting or dropping materials when using vertical support, the column should be made of a log with a thinnest diameter not less than ( )mm. (B)

A, 100

B, 200

C, 50

52. [Single choice question] If an investor in an individual business does not guarantee the necessary capital investment for production safety, resulting in an production safety accident, and , which is not enough to be a criminal punishment, he may be punished (). (C)

A, fines for not less than 20,000 yuan but less than 100,000 yuan

B, fines for not less than 50,000 yuan but less than 100,000 yuan

C, fines for not less than 200,000 yuan but less than 200,000 yuan

53, [Multiple choice question] When changing the teeth, if there are people working within 3m of the drum up and down, ( ) must be done. (ABCDE)

A, guard

B, guard top

C, power off

D, turn on isolating switch and clutch

E, shut down

54, [Multiple choice question] The "three pairs" of gas inspection refer to the relevant situation and data filled in ( ) are exactly the same. (ABC)

A, record board

B, inspection manual

C, gas ledger

D, tile inspection inspection tour chart

55, [Judgement question] All equipment used to process, store and transport various flammable liquid gas dust materials must be properly grounded. (√)

56. [Judgement Question] The openings passing through cables and conduits on the walls between dangerous and non-hazardous places should be fully sealed. (√)

57. [Multiple choice question] Using gas to keep warm will not cause gas poisoning. (×)

58. [Multiple choice question] Under normal circumstances, explosion-proof electrical equipment is only suitable for use in dangerous places with a temperature of -20~+40 Celsius·safe production simulation test. One point pass pressure is 80kPa~110kPa, and the standard oxygen content (volume ratio) in the air does not exceed 21%. (35)(√)

59. [Multiple choice question] The task of the tailings conveying system is to send the tailings discharged from the ore dressing plant to the tailings pond to store. (√)

60. [Multiple choice question] The upper and lower boundaries of gas explosion concentration have nothing to do with the explosion environmental factors. (×)

61. [Judgement question] The "sweat" on the tunnel wall is a sign of a sudden gushing of water. (√)

62. [Multiple choice question] When working on low-voltage live equipment or lines, one person will operate and a dedicated person will be assigned to supervise it. (×)

63. [Multiple choice question] When detecting the concentration of gas or other harmful gases in blind lanes with long wind shutdown or large gas outflow, in addition to checking the gas concentration, the concentration of oxygen and other harmful gases must also be detected. (√)

64. [Judgement Question] After a mine accident occurs, the on-site danger should be eliminated as soon as possible, the cause of the accident should be found, and preventive measures should be proposed. Production can only resume after the on-site hazard is eliminated.(√)

65. [Multiple choice question] One or more measures should be taken to cut off the power of electrical equipment in dangerous places in a suitable location or location outside a dangerous place. (√)

66. [Multiple choice question] In a dangerous environment of combustible dust, after the hazardous area is divided and the dust type is determined, you can choose the applicable equipment. However, when the dust thickness is thicker, the temperature group of the equipment should be smaller. (×)

67. [Multiple choice question] The water curtain formed by clay cannon mud has the effect of reducing and absorbing toxic and harmful gases in blasting, and improving the underground working environment. (×)

68. [Multiple choice question] Practitioners have the right to refuse illegal commands and forced risky operations. (√)

69. [Multiple choice question] In a dangerous environment of combustible dust, there are several ways to choose equipment. One of them is to choose according to the ignition point temperature of the dust, and the latest analysis and group. (√)

70. [Judgement Question] The subject who violates the law must have the ability to be responsible. (√)

71. [Multiple choice question] In explosion-hazardous places, electrical equipment and lines are prohibited from being repaired on demand, and power outage is prohibited. (√)

72. [Judgement Question] GLY series mining gas flow sensors can only be transmitted through RS485. (√)

73. [Multiple choice question] The safety-enhancing electrical equipment can directly press the wires on the insulator. (×)

74. [Multiple choice question] The increased-safe electrical clearance and creepage distance are smaller than that of ordinary electrical products. (×)

75. [Multiple choice question] When lightning is discharged, electrostatic induction and electromagnetic induction on nearby conductors may cause explosions between metal parts. (×)

76. [Judgement Question] my country stipulates that the limit of the effective value of the industrial frequency safety voltage is 120V. (×)

77. [Judgement Question] Ore safety signs should be set in a quiet place that does not affect people's sight or passage. (×)

78. [Multiple choice question] According to the provisions of GB3836.1-2010, increased safety type explosion-proof technical symbol. Safe production simulation test passes one by one. "e" can also be represented as "eb". (√)

79. [Multiple choice question] According to GB3836.1-2010, the explosion-proof explosion-proof technical symbol "d" can also be expressed as "dc". (×)

80. [Multiple choice question] Regular or irregular inspection and maintenance of explosion-proof equipment in accordance with regulations is to ensure the integrity of its explosion-proof performance throughout the service period. (√)

81. [Judgement Question] Coal mine enterprises have the right to refuse anyone’s illegal command and have the right to stop anyone from illegal operations. (√)

82. [Judgement Question] After a gas explosion accident occurs, the gas source should be cut off immediately and the remaining gas should be quickly processed. (√)

83. [Multiple choice question] The shell of positive pressure electrical equipment or ventilation pipe and its sealing gaskets need to be replaced or repaired. They can be repaired using general industrial repair processes, but the airtightness of the equipment and pipelines should be ensured. (√)

84. [Multiple choice question] The lower the lower limit of explosion, the smaller the range of the explosion hazard area. (×)

85. [Multiple choice question] The unit that applies for a gas cylinder usage registration certificate must be the filling unit of the gas cylinder. (×)

86. [Judgement Question] When the operator table meter indicates that it is running at full speed, if the driver finds that the current exceeds the "safety production simulation test" rated current , there is no need to take immediate measures. (×)

87. [Multiple choice question] Directional wells should have a good purification system and at least three-level purification devices are equipped. The sand content in drilling fluid shall not be greater than 0.5%. (√)

88. [Judgement Question] The equipment, equipment, pyrotechnics and safety instruments used by coal mine enterprises must comply with national standards and industry standards. (√)

89. [Multiple choice question] The main reason for short circuit in electrical equipment is that the insulation of the equipment is damaged. (√)

90. [Judgement Question] The smaller the electrical gap, the smaller the creepage distance.(×)

91. [Multiple choice question] To prevent the occurrence of pneumoconiosis, personal protection is required and dust protection equipment is worn, such as dust masks. (√)

92. [Judgement Question] Dust explosion-proof electrical equipment must completely prevent dust from entering the electrical shell according to its manufacturing principle and process technology. Only in this way can safety be ensured. (×)

93. [Judgement Question] Collapse refers to an accident caused by an object or building that exceeds its own strength limit or is damaged by structural stability under the action of external force or gravity. (√)

94. [Multiple choice question] If the person who is poisoned or suffocated has not stopped breathing or although his breathing has stopped but his heart is still beating, first perform artificial respiration . (×)

95. [Judgement Question] During the fluid flow process, the amount of fluid passing through any section of the conduit within a unit time is called the flow rate. (√)

96. [Judgement Question] After the line experience is clear, there is no voltage, the grounding wire should be hooked up at both ends of the working area immediately. Any branch line that may send power to a power outage line does not need to be hooked up with ground wire. (×)

97. [Multiple choice question] Explosion-proof signs are the code of explosion-proof hazardous places suitable for explosion-proof electrical equipment. They are generally defined by 4 parameters, which are hazardous areas, gas groups, etc. (×)

98. [Multiple choice question] When installing explosion-proof electrical equipment, junction box , you should directly screw it in with a wire pipe. (×)

99. [Multiple choice question] Explosion-proof electrical equipment must obtain certification from the national explosion-proof inspection agency for product use. (√)

100. [Judgement Question] The transparent parts and gaskets of explosion-proof electrical equipment are allowed to be repaired. (×)

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