2023 [Coal Mine Gas Inspection] Latest Analysis and Coal Mine Gas Inspection Exam Papers

Source of question bank: Yidiantong public account applet for safety production mock exam

The latest analysis of coal mine gas inspection According to the requirements of the new coal mine gas inspection examination outline, the safety production simulation test Yitong compiled the coal mine gas inspection simulation test questions to form a set of coal mine gas inspection full simulation test questions, and students can pass the coal mine gas inspection test papers Realistic simulation, self-test for coal mine gas inspection.

1. [Multiple-choice question] "Establishing and improving the safety production responsibility system" is an important content of the safety management system established by the "Coal Law", which includes ( ). (ABDE)

A. Safety Production Responsibility System for Functional Management Organizations of Coal Mine Enterprises and Their Staff

B. Safety Production Responsibility System for Person in Charge of Coal Mine Enterprises

C. Coal Mine Safety Inspection Responsibility System

D. Safety Production Responsibility System for Post Personnel

E. Group prevention and group governance system

2. [Multiple choice] "Special Provisions of the State Council on the Prevention of Coal Mine Production Safety Accidents" stipulates that if a coal mine has major safety hazards and behaviors, it should immediately stop production and eliminate the hazards. The following ( ) belong to the 15 major production safety hazards and behaviors listed in the "Special Regulations". (ABCD)

A. Organization of production with supercapacity, superintensity or overcapacity

B. Gas overrun operation

C. The coal and gas outburst mines did not implement outburst prevention measures in accordance with regulations

D. No gas drainage system and monitoring system have been established in high gas mines, or the gas monitoring system cannot operate normally

E. Other

3. [Multiple choice] The "Regulations on Coal Mine Safety Supervision" established the ( ) system. (ABCD)

A. Coal mine accident report and investigation and handling

B. Administrative penalties for coal mine safety supervision

C. Coal mine safety production supervision and inspection

D. Coal Mine Safety Supervision, Supervision and Restriction

E. Coal Production Licensing System

4. [Multiple-choice questions] In order to prevent gas accumulation and deal with it in time when gas accumulation occurs, the mine must have ( ) safety measures. (ABCD)

A. The main ventilator stops running due to power outage and maintenance

B. Restoring ventilation after the ventilation system is damaged

C. Emission of gas

D. Power transmission

5. [Multiple-choice question] The mines in the following ( ) situations must establish a gas drainage system. (ABCDE)

A. The absolute gas emission of the mining face is >5m3/min

B. Absolute gas emission from the mine ≥ 40m3/min

C. The mined coal seam has the danger of coal and gas outburst

D. For mines with an annual production of less than 400,000 tons, the absolute gas emission of the mines is >15m3/min

E. The absolute gas emission of the excavation face is >3m3/min

6. [Multiple choice] The following regulations about wind speed ( ) are correct. (BCD)

A. The maximum wind speed at the mining face is 6m/s

B. The maximum wind speed in rock roadway excavation is 4m/s

C. The minimum wind speed at the mining face is 0.25m/s

D. The maximum wind speed in the main inlet and return air lanes is 8m/s

7. [Multiple-choice questions] In dealing with roof fall accidents, it is necessary to ( ) clear the passage for rescuers. When necessary, special small lanes can be excavated to the people in distress. (AC)

A. From outside to inside

B. From the inside out

C. Strengthen the support

D. to dig a tunnel

8. [Multiple-choice question] In underground coal mines, the hazards of H₂S are mainly manifested as ( ). (ACE)

A. Toxic

B. Asphyxia

C. Explosive

D. cause the coal to spontaneously ignite

E. Make the commonly used gas probe "poisoned" and fail

9. [Multiple choice] Which one belongs to the regulation is ( ). (AC)

A. Coal mine safety regulations

B. Coal Mine Safety Supervision Regulations

C. Coal mine safety production supervision and management regulations promulgated by provincial government orders

D. Safety Production License Regulations

10. [Multiple-choice question] When controlling the emission of gas, ( ). (ABC)

A. Calculation of gas discharge volume, air supply volume and discharge time

B. Formulate methods to control gas emissions, and strictly prohibit "one wind blowing"

C. Ensure that the gas concentration at the place where the exhaust air flow and the full air pressure air flow are mixed does not exceed 1.5%

D. Shut down the main ventilator

11. [Multiple-choice questions] The mining face with ( ) must be checked frequently by special personnel, and a methane power-off device must be installed. (BCD)

A. Water inrush hazard

B. Coal and gas outburst hazards

C. The danger of gas ejection

D. Large gas gushing out and abnormal changes

12. [Multiple choice] The conditions that coal dust explosion must meet at the same time are ( ). (ABCD)

A. Enough oxygen

B. Coal dust itself is explosive

C. Coal dust reaches an explosive concentration

D. There is a heat source sufficient to ignite coal dust

13. [Multiple-choice question] Coal mine safety management must be adhered to ( ). (ABD)

A. Run mines according to law

B. Management of mines according to law

C. to pay taxes according to law

D. Govern safety according to law

14. [Multiple-choice question] The "three violations" that people often say in the work of coal mine safety production refer to ( ). (ACD)

A. Illegal work

B. Violation of financial discipline

C. Violation of labor discipline

D. Illegal command

15. [Multiple choice] The safety manual for coal mine workers should specify ( ), etc. (ABCD)

A. The rights and obligations of employees

B. Major security risks

C. Emergency protection measures and methods

D. Illegal behavior reporting hotline and acceptance department

16. [Single-choice question] When the driver uses a crane to lift or lift people and objects together, he should ( ) operate. (B)

A. to allow

B. Prohibition

C. After the approval of the leader, it can be

17. [Multiple-choice question] There are ( ) ways to adjust the local air volume of the mine. (ABC)

A. Increased resistance adjustment method

B. Drag reduction adjustment method

C. Pressure regulation method

D. Change the main fan characteristic adjustment method

18. [Multiple choice] The basic task of mine ventilation is ( ). (ACD)

A. For people to breathe

B. To prevent the coal from spontaneously igniting

C. Dilute and eliminate toxic and harmful gases

D. to create good climate conditions

E. Increase the atmospheric pressure downhole

19. [Single-choice question] ( ) is the fundamental starting point and goal of formulating the "Safety Production Law". (D)

A. Punish lawful production safety violations and crimes

B. Establish and improve my country's production safety legal system

C. Strengthen the supervision and management of production safety

D. Valuing and protecting the right to life of people

20. [Single-choice question] ( ) The mine must be equipped with a mine safety monitoring system. (D)

A. High gas, coal and gas outburst

B. Low gas

C. water inrush

D. all

21. [Single-choice question] The obligations of employees in safety production stipulated in the "Safe Production Law" include: employees should strictly abide by the safety production rules and regulations and operating procedures of their units during the operation process, obey management, and correctly wear and use( ). (A)

A. Labor protection articles

B. Safety and hygiene products

C. Special equipment and equipment

22. [Single-choice question] "Coal Mine Safety Regulations" stipulates that methane sensors must be installed in the ( ) chambers of electromechanical equipment in the return air flow, and the gas concentration should not exceed 0.5%. (A)

A. Intake side

B. Return air side

C. Indoor

D. Chamber and air return side

23. [Single-choice question] "Coal Mine Safety Regulations" stipulates that ( ) exposed blasting in coal mines. (A)

A. It is strictly forbidden

B. After taking measures, you can

C. Not allowed

24. [Single-choice question] "Coal Mine Safety Regulations" stipulates that the total number of mine lamps in good condition should be at least ( ). (B)

A. Equal to the total number of people who often use lights

B. 10% more than the total number of people who often use lights

C. Equal to the total number of people in the mine

25. [Single-choice question] "Coal Mine Safety Regulations" stipulates that the allowable wind speed at the coal mining face is ( ). (A)

A、0.25

B、4m/s

C、0.25

D、6m/s

E、0.15

F、4m/s

G、1

26. [Single-choice question] "Coal Mine Safety Regulations" stipulates that the allowable wind speed at the coal mining face is ( ). (A)

A, 0.25 to 4m/s

B. 0.25 to 6m/s

C. 0.15 to 4m/s

D. 1 to 8m/s

27. [Single-choice question] Generally speaking, in mining areas with active groundwater, the gas content of coal seams is ( ). (B)

A. Larger

B. Smaller

C. It has nothing to do with the activity of groundwater

28. [Single-choice question] When the two excavation faces are connected, the excavation face can be charged and blasted only when the gas concentration in the two face and its return air flow is ( ). (B)

A. All below 0.5%

B. All below 1%

C. The excavation surface is below 1%, and the shutdown surface is below 1.5%.

D. All below 1.5%

29. [Single-choice question] The place where underground work is temporarily suspended, ( ) stops the wind. (C)

A. temporarily

B. It can be determined according to the gas concentration

C. Not allowed

30. [Single-choice question] Cotton yarn and cloth ends used underground must be packed in ( ) with a cover. (C)

A. Cask

B. Plastic bucket

C. Iron bucket

31. [Single-choice question] In the ( ) near the wellhead room and the ventilator room, there are no fireworks or stoves for heating. (B)

A、10m

B、20m

C、30m

32. [Single-choice question] After the tunneling face that uses a local fan is stopped for some reason, the key inspection is to be carried out before the ventilation is restored ( ). (D)

A. Top plate

B. Equipment status

C, O concentration

D. Gas concentration

33. [Single-choice question] The coal seam with an inclination angle of 50° belongs to ( ) coal seam. (C)

A. Slightly inclined

B. Tilt

C. steep slope

34. [Single-choice question] If inert gas is mixed in the air containing gas, the limit range of gas explosion concentration ( ). (B)

A. will expand

B. will shrink

C. no change

35. [Single-choice question] When the heart of the wounded suddenly stops beating underground, you should ( ). (A)

A. Perform CPR before sending to the hospital

B. Immediately send to Inoue Hospital

C. Immediately report to the mine dispatching room

36. [Single-choice question] When performing welding operations underground, at least ( ) fire extinguishers should be provided at the welding operation site. (B)

A. 1

B. 2

C. 3

37. [Single-choice question] In the same coal mining face, the amount of gas emitted by the coal falling process is higher than that of other processes ( ). (C)

A. No significant change

B. will decrease

C. will increase

38. [Single-choice question] When there is a sign of water penetration at the excavation face or other places, you must ( ). (A)

A. Stop operations, take measures, report to mine dispatching, and evacuate personnel

B. Stop the operation, retreat quickly, and report to the mine dispatcher

C. Take measures and report mine scheduling

D. Stop operation and report mine scheduling

39. [Single-choice question] In the coal seam where there is a risk of coal dust explosion, it must be ( ) within the 20m roadway before and after the blasting of the excavation face. (C)

A. Cut off the power supply of electrical equipment

B. Clean up coal dust

C. Sprinkle water to reduce dust

40. [Single-choice question] When the gas concentration in the roadway is 1% to 3%, the ( ) organization will discharge it. (C)

A. Gas inspector

B. The security department

C. Ventilation department

D. Chief mine engineer

41. [Single-choice question] The policy of coal mine safety production in my country is ( ). (B)

A. Safety first, quality first

B. Safety first, prevention first, comprehensive management

C. Safety In order to produce, production must be safe

D. Quality is the foundation, safety is the premise

42. [Single-choice question] When draining gas in the goaf, the main purpose of taking measures to control the negative pressure of the 'safety production simulation test is easy' drainage is ( ). (B)

A. Prevent a large amount of gas from gushing out

B. Prevent natural fire in the goaf

C. Prevent goaf roof fall

D. Prevent gas from protruding

43. [Single-choice question] The minimum wind speed in the roadway of the electric locomotive with no gas gushing out should not be lower than ( ). (B)

A、0.25m/s

B、0.5m/s

C、1m/s

D、4m/s

44. [Single-choice question] Which one is incorrect about the function of the elevator landing door and the elevator door? ( ). (B)

A. It is impossible to open the landing door when the elevator is running normally

B. If a landing door is open, the elevator cannot start or continue to run

C. It should be ensured that the elevator door is opened first, and the landing door is opened later

D. When the door is hit or is about to be hit, the door will be opened automatically

45. [Single-choice question] When checking the optical system of the optical gas detector, if the interference fringes are unclear, it should be adjusted ( ). (B)

A. Eyepiece

B. Light source

C. Fine-tuning screw

D. The main tone spiral

46. ​​[Single-choice question] In the coal mining face of coal (rock) and gas outburst mines, the methane sensor alarm concentration, power-off concentration, and power-recovery concentration are respectively ( ). (C)

A、≥1.0%CH₄;≥1.0%CH₄;<1.0%CH₄

B、≥1.5%CH₄;≥1.5%CH₄;<1.0%CH₄

C、≥1.0%CH₄;≥1.5%CH₄;<1.0%CH₄

D、≥1.5%CH₄;≥1.0%CH₄;<1.0%CH₄

47. [Single-choice question] Coal and gas outbursts mostly occur in ( ). (C)

A. Coal mining face

B. Rock roadway excavation face

C. Shimen coal mining face

48. [Single-choice question] There are 3 conditions for coal to ignite spontaneously, ( ) spontaneously ignites. (C)

A. As long as one of the three conditions exists, coal can

B. As long as two conditions in the 3 items exist, coal can

C. The three conditions must exist at the same time for coal to

49. [Single-choice question] The person in charge of the coal mining enterprise and the production and operation management personnel should ( ) go into the mine and establish a registration file for going into the mine. (B)

A. from time to time

B. Taking turns to lead the class

C. Regularly

50. [Single-choice question] The waiting time after the blasting of the prominently dangerous working face is not less than ( ). (D)

A、5min

B、15min

C、20min

D、30min

51. [Single-choice question] Administrative sanctions can only be decided on ( ). (B)

A. Unit

B. Personal

C. Units and individuals

D. to lead

52. [Single-choice question] Which law regulates the mining license system is ( ). (B)

A. Coal Act

B. Mineral Resources Law

C. Mine Safety Law

D. Safe production law

53. [Single-choice question] The up and down hills in the mining area belong to ( ) roadway. (B)

A. to develop

B. to prepare

C. Recovery

54. [Single-choice question] When the air volume of the mining face is insufficient, "the safety production simulation test is easy to understand", ( ). (B)

A. can stop working

B. Charging and blasting are strictly prohibited

C. It is strictly forbidden to use electrical equipment

55. [Single-choice question] The gas concentration in the special gas discharge roadway of the coal mining face shall not exceed ( ). (C)

A、1.5%

B、2.0%

C、2.5%

D、3.0%

56. [Single-choice question] The electrical equipment whose power is cut off due to the gas concentration exceeding the specified limit in the coal mining face must be powered on and started when the gas concentration drops below ( ). (B)

A、0.5%

B、1.0%

C、1.5%

D、2.0%

57. [Single-choice question] For a mine using negative pressure ventilation (extraction type), the amount of gas emitted and its ventilation pressure ( ). (A)

A. Proportional

B. Inversely proportional

C. has nothing to do

58. [Single-choice question] The number of gas inspections at the mining face in high-gas mines, at least ( ) times per shift. (C)

A、1

B、2

C、3

59. [Single-choice question] The alarm concentration of the methane sensor of the air inlet flow in the coal mining face of the high outburst mine is ( ). (A)

A、0.5%

B、1.0%

C、1.5%

D、2.0%

60. [Judgment question] When the underground is close to aquifers, water-conducting faults, caves and water-conducting subsidence columns, water exploration may not be carried out according to production needs. ( × )

61. [Judgment question] The lubricating oil, cotton yarn, cloth and paper used in the mine can be placed freely after use. ( × )

62. [Judgment question] When anyone finds an underground fire, he should immediately take all possible methods to directly extinguish the fire and control the fire according to the nature of the fire, ventilation and gas conditions in the disaster area, and report to the mine dispatching room immediately. (√)

63. [Judgment question] The roof rock layer located above the coal seam, which has a certain degree of stability and often collapses by itself as the coal mining face is moved or returned to the pillar, is called the basic roof. ( × )

64. [Judgment] Tilt coal. Safety production mock exam made easy. The lower corner of the longwall coal mining face is the key part of gas detection. ( × )

65. [Judgment question] The most important purpose of enacting the "Safety Production Law" is to sanction various illegal and criminal acts in production safety. ( × )

66. [Judgment question] The gas and carbon dioxide concentration in the air flow of the return air lane of the single-lane excavation working face should be measured in the air flow of the return air lane, and the maximum value should be taken as the measurement result and processing standard. (√)

67. [Judgment question] The press-in local fan must be installed in the air inlet tunnel, the air intake volume should be greater than the suction volume of the fan, and the distance between it and the return air outlet should not be less than 10m. This is an effective measure to prevent the generation of circulating wind. (√)

68. [Judgment question] After the compressed oxygen self-rescuer is worn, it can be recharged with oxygen and the carbon dioxide absorbent can be replaced. (√)

69. [Judgment question] Iron wires and copper wires can be used instead of fuses in underground mines. ( × )

70. [Judgment question] After the underground miner's lamp goes out, the spare bulb should be replaced in time. ( × )

71. [Judgment question] When detecting the concentration of gas or other harmful gases in a blind alley with a long wind stop time or a large amount of gas gushing out, at least two people should enter the inspection together. One in front and one in back, checking and moving forward. (√)

72. [Judgment question] Loosening blasting can be used as an outburst prevention measure in the coal mining face where there is a danger of outburst. (√)

73. [Judgment question] Based on the characteristics of light methane and heavy carbon dioxide, measure the concentration of carbon dioxide in the roadway air according to the method of measuring the concentration of methane, and the concentration of the measured lower gas is the concentration of carbon dioxide. ( × )

74. [Judgment question] The relationship between safety and production is that production is the purpose, safety is the premise, safety is for production, and production must be safe. (√)

75. [Judgment question] The most fundamental purpose of safety production legislation is to protect the life safety and health of laborers in the production process. (√)

76. [Judgment question] The safety production responsibility system is a concrete manifestation of the policy of "safety first, prevention first, and comprehensive management", and is the most basic safety management system for coal mining enterprises. (√)

77. [Judgment question] For general wounded, first aid such as hemostasis, immobilization, and bandaging should be carried out first, and then transported. (√)

78. 【Judgment】Patients with respiratory or cardiac arrest should be sent to the hospital immediately. ( × )

79. [Judgment question] For the tunneling face equipped with wind power blocking device, the main switch of electrical equipment and the switch of local fan are locked. (√)

80. [Judgment question] When mining outburst coal seams or Shimen to expose outburst coal seams, the full-time gas inspectors of each mining face should patrol the gas inspection. ( × )

81. [Judgment question] The antistatic hair dryer is a hair dryer that fully meets the safety requirements. ( × )

82. [Judgment question] The return air flow of the excavation working face refers to the air flow in the return air tunnel other than the return air outlet of the excavation roadway. ( × )

83. [Judgment question] Mr. Wang, a small well gas inspection worker of a township office, has detected that the concentration of underground gas has been increasing day by day since late August 2005, but he has not reported and dealt with it in time. On September 2, when the mine was blasted, Wang did not check the gas. As a result, the blast caused a gas explosion, killing and injuring many people, which is a crime of major liability accident. (√)

84. [Judgment question] When measuring the gas concentration in the air flow of the roadway, it should be carried out on the upper part of the air flow section of the roadway, and the measurement should be carried out 3 times continuously, and the average value should be taken. (√)

85. [Judgment question] The elements of a fire include combustibles, heat source and air. (√)

86. [Judgment question] Sometimes CO also gushes out from the coal seam. (√)

87. [Judgment question] The larger the exposed area of ​​the coal seam roof, the smaller the pressure on the coal seam roof. ( × )

88. [Judgment question] Coal production is a relatively dangerous production activity. When an enterprise enters into a "life and death contract" with its employees, it must truthfully inform the employees, and it will only take effect after being signed by both parties, otherwise it will be regarded as an invalid contract. ( × )

89. [Judgment question] When a flood occurs underground in a coal mine, those who are blocked in the tunnel should take shelter and lie still, waiting for rescue. "Safety Production Mock Exam Made Easy" (√)

90. [Judgment question] Before blasting, the gas concentration in the wind flow within 10m near the blasting site must be checked. ( × )

91. [Judgment question] Gas often accumulates on the top of the roadway, the space of the caving and the working face of the uphill excavation. (√)

92. [Judgment question] When the gas inspector shifts over, the next gas inspector has not arrived on duty, and the gas inspector must report to the leader immediately after leaving the well to prevent the occurrence of "empty shift". ( × )

93. [Judgment question] The gas inspection board should be filled with gas and carbon dioxide concentration, inspection date and the name of the gas inspector. ( × )

94. [Judgment question] Gas is lighter than air, and it is easy to accumulate on the top of the roadway. (√)

95. [Judgment question] Silicosis is a progressive disease, and the disease will continue to develop even if the patient is removed from the silica dust working environment after the illness. (√)

96. [Judgment question] The greater the concentration of mineral dust in the air, the more mineral dust inhaled by people, the higher the incidence of pneumoconiosis. (√)

97. [Judgment question] The axial flow fan can adopt reverse wind. (√)

98. [Judgment question] The applicable environment of the filter self-rescuer is that the oxygen concentration is not lower than 18%, and the CO concentration is not higher than 1.5%. (√)

99. 【Judgment】Filter type self-rescuer should be maintained carefully, generally it can be used for 5 years without regular inspection. ( × )

100. [Judgment question] The air intake and return air of the coal mining face must not pass through the goaf or roof fall area. (√)

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