The operation of the mock examination platform for the main person in charge of the hazardous chemicals business unit in 2022 is based on the new examination syllabus for the main person in charge of the hazardous chemicals business unit.

question bank source: Safety Production Mock Exam Yidiantong public account applet

The 2022 judgment questions for the main person in charge of the hazardous chemicals business unit are the simulation test questions for the main person in charge of the hazardous chemicals business unit, computer-based test practice questions! The operation of the mock examination platform for the main person in charge of the hazardous chemicals business unit in 2022 is based on the new examination syllabus for the main person in charge of the hazardous chemicals business unit. The test paper for the main person in charge of the dangerous chemicals business unit can be improved at any time based on the safety production simulation test to improve the test-taking ability.

1. [Single-choice question] On the afternoon of April 15, 2004, workers at the chlorine branch of a city's chemical plant in the main urban area discovered that the No. 2 chlorine condenser was perforated and chlorine was leaking. An explosion occurred in the pipeline at 1:00 on the 16th; at about 4:00 in the morning, a local explosion occurred again, and a large amount of chlorine gas spread to the surroundings; at 15:57 on the 16th, five chlorine tanks containing liquid chlorine suddenly exploded, causing 9 People were killed or missing, and three people were injured. According to the above description, the main hazards of chlorine to the human body are (). (C)

A, suffocation

B, dizziness

C, harmful effects on the upper respiratory tract mucosa

2. [Single-choice question] On May 22, 2007, a university student named Chang used illegal means to retaliate against his classmates in the same dormitory. I obtained 250g of the highly toxic substance thallium nitrate from a drug friend. At about 4 pm on May 29, Chang used a syringe to inject thallium nitrate into the tea cups of the victims Niu, Li, and Shi respectively, causing 3 Students were poisoned by thallium . Based on the above circumstances, to apply for a purchase license for highly toxic chemicals, the applicant shall submit relevant materials to the public security agency of the local people's government at the ( ) level. (C)

A, province

B, city

C, county

3. [Single-choice question] At 14:07 on ×year ×month Liquefied petroleum gas is ejected, spreads northward along the wind, and burns when exposed to an open flame, causing the spherical tank to explode. Due to the explosion and combustion of the spherical tank, the fire burned for 19 hours, causing five 400-degree spherical tanks, four 450-degree horizontal tanks and more than 8,000 liquefied petroleum gas bottles (of which more than 3,000 were empty bottles) to explode or burn. Houses, buildings, motor vehicles and equipment in adjacent areas were burned down or damaged to varying degrees, resulting in direct economic losses of approximately 6.27 million yuan, 36 deaths and 50 serious injuries. During the two years and two months since the spherical tank was put into use, the spherical tank was often at a low capacity and only reached the rated capacity three times. It ruptured on the 18th, four days after the third encapsulation. The spherical tank has not been inspected since it was put into use. Before the rupture, the safety valve was normal and the drain valve was closed normally. The main body material of the spherical tank is I5MnVR, the inner diameter is 9200mm, the wall thickness is 25mm, and the volume is 400?. It is used to store liquefied petroleum gas. According to the above facts, the dangerous and harmful factors present in the liquefied gas station do not include (). (A)

A, collapse

B, combustion and explosion

C, poisoning

4. [Single-choice question] The "Safety Production Law" stipulates that the main person in charge of the production and operation unit fails to perform the safety production management responsibilities stipulated in the "Safety Production Law", and the production and operation If the principal person in charge of a unit is subject to criminal punishment or dismissal from his post in accordance with the provisions of the Work Safety Law, he shall not serve as the principal person in charge of any production and business unit within () years from the date the punishment is completed or the punishment is imposed. (C)

A, three

B, one year

C, five

5. [Single-choice question] " Precursor Chemicals Management Regulations " stipulates that ( ) is not allowed to purchase the first and second category precursor chemicals. (C)

A, unit

B, enterprise

C, individual

6. [Single-choice question] Under normal circumstances, impurities will ( ) tend to be static. (A)

A, increase

B, decrease

C, do not affect

7. [Single-choice question] The following () is a fire safety device. (B)

A, safety valve

B, fire arresting device

C, safety liquid seal

8. [Single choice question] Among the following solids, the one that belongs to is flammable when wet and is ().(C)

A, sulfur

B, red phosphorus

C, carbide

9. [Single-choice question] The electric shock that occurs when the human body comes into direct contact with or is too close to a normally charged body is called () electric shock. (B)

A, indirect contact

B, direct contact

C, step voltage

10, [Single-choice question] The ( ) unit of hazardous chemicals should include chemicals that are exactly the same as the hazardous chemicals in the packaging of hazardous chemicals. Safety technical instructions, and a chemical safety label that is exactly the same as the hazardous chemicals in the package should be affixed or fastened to the package (including outer packaging). (A)

A, production

B, operation

C, storage

11. [Single-choice question] During the emergency rescue process, when the social assistance team arrives at the enterprise, the headquarters should send personnel to guide and inform (). (A)

A, safety precautions

B, production precautions

C, safety rules and regulations

12, [Single choice question] When the oil and gas content in the air is (), people will become dizzy in 12-14 hours in this environment. (C)

A, 0.08%

B, 0.18%

C, 0.28%

D, 0.38%

13. [Single-choice question] The construction unit should install hoisting machinery , temporary power facilities, scaffolding, and access at the entrance to the construction site. Set up obvious () at dangerous locations such as passageways and stairwells. (B)

A, safety warning sign

B, safety warning sign

C, safety instruction sign

D, safety publicity sign

14, [Single choice question] Self-propelled pole crane The working ground should be solid and flat, beyond the radius of rotation and the effective height There must be no obstacles within ()m. (B)

A, 4

B, 5

C, 6

D, 7

15. [Single-choice question] In the adjacent working area, there are no protective facilities or the protection is not strict or strong, and the workers slip and fall, which is the main reason for the accident () . (C)

A, object strike

B, fire

C, fall from height

16, [Single-choice question] Winter construction safety protection equipment should be in place at () time. (B)

A, 20 days

B, 1 month

C, 2 months

D, 3 months

17. [Single choice question] When measuring the liquid level depth in the well of the pumping unit, the () valve should be opened. (B)

A, back pressure

B, casing

C, clear wax

D, oil pipe

18, [Single choice question] Safety technology mainly uses engineering technology to eliminate ( ) unsafe factors to achieve production processes and mechanical equipment and other production conditions intrinsically safe. (B)

A, people's

B, objects'

C, environment's

19. [Single-choice question] The fire permit at the construction site is approved by (). (C)

A, company safety department

B, engineering project technical person in charge

C, engineering project department person in charge

D, safety officer

20, [Single choice question] Roof truss hoisting (), protective railings should be installed on the upper chord. (A)

A, former

B, current

C, later

D, middle

21, [Single-choice question] The basic power supply and distribution system of temporary power projects at the construction site should be set according to (). (C)

A, first-level

B, second-level

C, third-level

D, fourth-level

22, [Single-choice question] The safety voltage is determined by ().(B)

A, working environment and equipment rated voltage

B, human body allowable current and human body resistance

C, gender and working environment

23. [Single-choice question] The party concerned shall arrive within () days from the date of receipt of the administrative penalty decision letter. Pay the fine at a designated bank or through an electronic payment system. (C)

A, five

B, ten

C, fifteen

D, thirty

24, [Single choice question] When installing formwork such as ring beams, balconies, awnings and overhangs, their supports () are supported on the construction scaffolding. (B)

A,

B is allowed,

C is not allowed,

D is allowed under special circumstances, none of the above is correct

25, [Single choice question] When the pressure test of container uses air pressure, the test method shall be in accordance with the " Pressure Vessel Safety Technical Supervision Regulations " relevant requirements. The holding pressure shall not be less than () hours. (C)

A, 2

B, 3

C, 4

26, [Single-choice question] When laying out deep foundation pit monitoring points, the excavation depth of a third-level foundation pit not exceeding 7 meters, the monitoring point spacing requirements (). (D)

A, not less than 10 meters

B, not more than 10 meters

C, not less than 20 meters

D, not more than 20 meters

27. [Single-choice question] On-site liquid leakage should be (), diluted, contained, and processed in a timely manner. (A)

A, covering

B, landfilling

C, burning

28. [Single-choice question] Among the following reasons, the wire rope may often jump out of the pulley groove: () (B)

A. Too much or too little lubricating oil for the wire rope.

B. The diameter of the pulley groove and the wire rope do not match

C. The bearing installation is too tight

D. The load is too large

29. [Single-choice question] The height of the floor-standing operating platform should not be greater than (). (C)

A, 1: 1

B, 2: 1

C, 3: 1

D, 3: 2

30, [Single choice question] When it is found that the gate plate of the 250 type gate valve is frozen to death, you can use the hand hammer to hit it lightly (). (A)

A, the lower part of the valve body

B, the upper part of the valve body

C, the large gland

D, the clamp head

31, [Single-choice question] There are ( ) types of legal occupational diseases in my country. (C)

A, 99

B, 115

C, 132

32, [Single choice question] The attached support structure of the attached lifting scaffold uses ordinary through-wall bolts . When connecting to the engineering structure, double nuts should be used for fixation. screw rod has a lot of exposed nuts. At () buckle. (B)

A, 2

B, 3

C, 4

D, 5

33, [Single choice question] Boiler house roofs are not allowed to be used (). (B)

A, asbestos board

B, simple linoleum roof

C, corrugated iron

D, the above are

34, [Single choice question] According to the regulations of " Hazardous Chemicals Safety Management Regulations ", ( ) is not allowed to contain highly toxic chemicals (Except for pesticides that are highly toxic chemicals) and explosive precursor hazardous chemicals. (B)

A, medical unit

B, individual

C, scientific research unit

35, [Single-choice question] The main parameter of the tower crane is (). (B)

A, lifting capacity

B, nominal lifting moment

C, lifting height

D, maximum lifting moment

36, [Single choice question] According to the " Construction Project Safety Production Management Regulations ", the construction project implements construction general contracting , () is responsible for the safety production simulation test and safety production at the construction site.(C)

A, subcontracting unit

B, construction unit

C, general contracting unit

D, supervision unit

37. [Single choice question] The disadvantage of the pot dosing method is (). (C)

A, complicated dosing equipment

B, large investment

C, increased sewage discharge

D, polluting the environment

38, [Single choice question] Li, Xu, Chen and apprentice Xiao Zhang of the lathe class of the instrument workshop of a machinery manufacturing plant , Xiao Meng and Xu’s wife Rao gathered in a lounge of about 18 square meters and used a 5KW electric stove for heating. Close the doors and windows tightly, and store a glass bottle containing 15kg of gasoline in the corner. The pressure inside the glass bottle increased as the room temperature increased. The cork was pushed out twice and was tightly plugged twice by apprentice Xiao Meng. As the pressure inside the bottle continues to increase, a crack opens in the glass bottle, and the gasoline slowly seeps out and flows to the electric stove. Chen and Rao, who were sitting next to the electric stove, immediately wiped the gasoline with a mop after they noticed the gasoline seeping out. During the wiping and cleaning process, the gasoline on the mop splashed on the electric stove wire, and the electric stove instantly burned, and the flames followed the oil traces and burned toward the gasoline bottle. Several people in the house saw something bad and ran to the door. Xu opened the door with force. Because the house was filled with gasoline vapor, as soon as the door was opened, the sufficient oxygen outside made the house burst into flames and the gasoline bottle exploded. As a result, three people were burned to death, others were burned to death, houses and machine tools were burned, and the economic losses were heavy. Based on the above facts, the source of fire that caused the accident was (). (C)

A, static electricity

B, electric spark

C, open flame

39, [Single choice question] A liquefied petroleum gas leakage and explosion accident occurred in the area of ​​the liquefied petroleum gas storage tank of a gas company. At 16:38 on the day of the incident, the replacement patrol line employee inspected and found that a white mist of liquefied gas was sprayed out from the bottom of the No. 11 spherical tank with a capacity of 400? in the tank area with a whistling sound. Despite the efforts of employees and local firefighters, the first explosion finally occurred at 18:50, killing 12 people on the spot and injuring 31 people who participated in the rescue. At 19:25, the No. 11 spherical tank exploded again. At 20:00, the No. 12 spherical tank also exploded, causing the safety valves of three nearby 100? horizontal tanks to discharge and catch fire. In this explosion accident, two 400-meter spherical tanks, four 100-meter horizontal tanks, and seven tank trucks were burnt and destroyed. The power distribution room, water pump room and other buildings were blown up, resulting in a direct economic loss of 4.77 million yuan. Based on the above situation, according to the "Regulations on Reporting, Investigation and Handling of Production Safety Accidents", this accident belongs to (). (A)

A, major accidents

B, particularly major accidents

C, major accidents

40, [Single choice question] The safety management organization of the construction construction general contracting enterprise with special qualifications shall have no less than () full-time safety management personnel. (D)

A, 2 people

B, 3 people

C, 4 people

D, 6 people

41. [Single-choice question] There are three ways for poisons to enter the human body, namely (). (C)

A, mouth, nose, ears

B, food, air, water

C, skin, respiratory tract, digestive tract

42, [Single choice question] During winter construction, tic-tac-toe frame , gantry frame , tower crane, etc. The ground anchor of cable rope should be set at (). (B)

A, scaffolding and other temporary facilities

B, below the permafrost layer

C, above the permafrost layer

D, on trees, temporary board houses and other relatively solid equipment and facilities

43. [Single-choice question] Do all kinds of things well during the construction process Construction records, real-time recording of the quality management content of the construction process, ensuring that project records are synchronized with () (B)

A, project plan progress

B, project construction progress

C, project design progress

D, project completion progress

44, [Single Choice Question] Liquid The lowest temperature at which flashover occurs is called ( ).(A)

A, flash point

B, ignition point

C, spontaneous ignition point

45, [Single-choice question] In construction site electrical engineering, the repeated grounding points of PE line should not be less than (). (C)

A, one

B, two

C, three

D, four

46, [Single-choice question] The general contractor of the construction project can subcontract part of the project in the contracted project to the subcontracting unit with (); (A)

A, corresponding qualifications

B, corresponding performance

C, corresponding management personnel

D, corresponding construction capabilities

47, [Single-choice question] On-site re-inspection refers to materials and equipment entering the construction site, etc., in accordance with relevant regulations from () Samples are taken and sent to the testing agency for testing of some or all performance parameters. (A)

A, construction site

B, sales location

C, manufacturer

D, supplier

48. [Single-choice question] If an employee is injured in an accident at work or suffers from an occupational disease and needs to suspend work to receive work-related injury medical treatment, he will be suspended with pay during the suspension period. The original ( ) salary in remains unchanged and will be paid by the employer on a monthly basis. (C)

A, work-related injuries or occupational diseases

B, wages and medical care

C, wages and benefits

49, [Single-choice question] Metal burning belongs to (). (C)

A, diffusion combustion

B, decomposition combustion

C, surface combustion

50. [Single-choice question] The following measures can be taken when the boiler is seriously short of water (). (B)

A, slow water inflow

B, it is strictly prohibited to add water to the boiler, emergency shutdown measures should be taken

C, open the safety valve to quickly reduce the pressure

51, [Single choice question] () refers to the death of more than 10 people and less than 30 people , or an accident in which more than 50 but not more than 100 people are seriously injured, or an accident in which direct economic losses are not less than 50 million yuan but not more than 100 million yuan. (D)

A, general accident

B, particularly serious accident

C, major accident

D, major accident

52, [Single-choice question] Units that provide mechanical equipment and accessories for construction projects should be equipped with complete and effective equipment in accordance with the requirements of safe construction ( ) and other safety facilities and devices (D)

A, insurance, limit

B, insurance, limit

C, guarantee, limit

D, guarantee, limit

53, [Multiple choice questions] National () safety production science and technology research and safety production The promotion and application of advanced technology will improve the level of production safety. (AC)

A, encourage

B, require

C, support

D, promote

E, force

54, [Single choice question] Which of the following methods cannot overcome the magnetic deflection of and blow : (). (D)

A, appropriately change the grounding wire position

B, add a small additional steel plate at both ends of the weld

C, try to use AC welding machine

D, choose electrode with better concentricity

55, [Single Topic selection】Steel pipe scaffolding is equipped with stamped steel scaffolding boards, wooden scaffolding boards, bamboo skewer scaffolding boards, etc., which should be installed on () horizontal horizontal poles. (B)

A, two

B, three

C, four

D, five

56, [Multiple choice question] According to the intensity of precipitation, rainfall can be divided into several levels, including ().(BCE)

A, drizzle

B, light rain

C, heavy rain

D, shower

E, heavy rain

57, [Multiple choice questions] According to the "Construction Engineering Safety Production Management Regulations", before the construction of the construction project, the construction unit is responsible for the technology of project management Personnel should give a detailed explanation to the construction () of the technical requirements for safe construction, and both parties should sign the " safety production mock exam one-click" confirmation. (CE)

A, construction team leader

B, construction team safety officer

C, operation team

D, on-site safety officer

E, operator

58, [Single choice question] The amount of oil in the reducer is: (). (C)

A, sufficient

B, a small amount of

C, moderate

59, [Multiple choice questions] What are the main parts of the safety flat net? () (ABCD)

A, net body

B, side rope

C, tether

D, tendon rope

E, packaging rope

60, [Single-choice question] When welding, it is strictly prohibited to use metal pipes, metal scaffolding, structural steel bars and other metal objects for lap joints instead of (). (A)

A, wire

B, support

C, neutral line

D, ground wire

61, [Single choice question] According to the "Regulations on Safety Production Management of Construction Projects", the temporarily built buildings at the construction site of the construction unit do not meet the requirements for safe use. If it fails to make corrections within the time limit, it shall be ordered to suspend business for rectification and shall be fined (). (D)

A, more than 10,000 yuan but less than 50,000 yuan

B, more than 3 yuan but less than 100,000 yuan

C, more than 10,000 yuan but less than 50,000 yuan

D, more than 50,000 yuan but less than 100,000 yuan

62, [Multiple choice questions] Construction At the construction site, the distribution box, , and switch box must follow the following operation sequence, which one is correct (). (AB)

A. The power supply operation sequence is: main distribution box - distribution box - switch box

B. The power outage operation sequence is: switch box - distribution box - main distribution box

C. The power outage operation sequence is: : main distribution box - distribution box - switch box

D, the power supply operation sequence is: switch box distribution box - main distribution box

E, power outage operation sequence is: main distribution box - switch box - Distribution electrical box

63, [Multiple choice questions] What are the problems with the protection of the hole with the short side longer than 1.5 meters in the picture? ()

(ABD)

A. The distance between the poles of the protective railings should not be greater than 2 meters.

B. The protective railings should be closed with dense mesh safety nets or tool-type railings.

C. The openings should be closed with safety nets every 10 meters or every two floors. Flat net closure

D, the hole should be closed with a safe flat net

64, [Multiple choice question] cantilevered type operating platform can be set (). (ABC)

A, overhang length 3m

B, overhang length 4m

C, overhang length 5m

D, overhang length 6m

E, overhang length 7m

65, [Multiple choice question] When working at heights in rainy and snowy days, () measures must be taken . (BCD)

A, anti-slip

B, windproof

C, antifreeze

D, coldproof

E, fireproof

66, [Multiple choice questions] " Special Equipment Safety Law of the People's Republic of China " stipulates that the following () equipment should be scrapped and canceled to the original registration authority . (CD)

A,

B that has experienced many accidents,

C that has exceeded the inspection period,

D that has serious accident risks and has no value for modification or repair,

67 that meets other scrapping conditions stipulated in safety technical specifications, [Multiple choice questions] in The main lifting machinery commonly used in lifting operations are ().(ABDE)

A, tower crane

B, truck-type crane

C, chain hoist

D, tire-type crane

E, crawler crane

68, [True or False Question] In order to facilitate applicants to handle assessment and certification matters, the certification department The location for accepting and issuing certificates can be located at the examination registration location. (√)

69. [True or False Question] On July 19, 2005, a packaging factory affiliated to a chemical company in a certain place was packaging pesticides. Due to the lack of strict protective measures, several female workers who were temporarily recruited suffered from dizziness, nausea, vomiting and other poisoning symptoms while loading pesticides, and were sent to the hospital one after another. No one died due to timely rescue efforts. Based on the above facts, please judge that because the company recruits temporary workers, there is no need to equip them with labor protection equipment. (×)

70. [True or False Question] On April 19, 2006, a resin products company used a large amount of organic solvent toluene in the production process, and it was operated manually without ventilation facilities. An employee suffered from suspected acute toluene poisoning and was diagnosed as "mild toluene poisoning" on April 20. An on-site inspection by occupational health supervisors found that the company had not reported the presence of occupational hazards to the health administration department, had not organized occupational health examinations for operators before, during and after taking up their posts, had not established occupational health surveillance files, and had no workplace. Occupational disease hazard factors monitoring and evaluation data; no occupational disease prevention and control management system and occupational disease hazard accident emergency rescue plan have been established; operators of occupational disease hazard factors positions did not wear effective personal protective equipment ; no warning signs and Chinese warning instructions were established. Based on the above facts, please judge that the organic solvent toluene used by this company is not a highly toxic substance and does not require an occupational hazard declaration to the safety supervision department. (×)

71. [True or False Question] It is stipulated that the professional and technical person in charge should be on-site to provide guidance during the hoisting operation of large equipment. (√)

72. [Judgment Question] If the main person in charge of the unit where the accident occurred is subject to criminal punishment or dismissal from office, he shall not be the main person in charge of any production and business unit within 10 years from the date of completion of the punishment or punishment. (×)

73. [True or False Question] After an accident occurs, relevant units and personnel should properly protect the accident scene and relevant evidence. No unit or individual may damage the accident scene or destroy relevant evidence. (√)

74. [True or False Question] Special equipment safety supervision and management departments should formulate special equipment emergency plans . () (√)

75. [True or False Question] Enterprises should formulate safety inspection plans and carry out various inspections regularly or irregularly. (√)

76. [True or False Question] Units that store highly toxic chemicals and other hazardous chemicals with major hazard sources shall report the quantity, location, and management personnel of highly toxic chemicals and other hazardous chemicals with major hazard sources. The situation shall be reported to the public security department and the department responsible for the comprehensive safety supervision and management of hazardous chemicals for record. (√)

77. [Judgment Question] Stored hazardous chemicals should have obvious signs that meet the requirements of national standards. When two or more different levels of dangerous goods are stored in the same area, the performance signs of the lowest level of dangerous goods should be used. (×)

78. [Judgement Question] When workers are exposed to acute occupational poisoning hazards or develop symptoms of occupational poisoning , the employer shall immediately organize the relevant workers to conduct emergency occupational health examinations. (√)

79. [True or False Question] If the 16 items of content specified in the Chemical Safety Data Sheet do not exist, they can be deleted or merged, and their order can also be changed. (×)

80. [True or False Question] Hazardous chemical production enterprises must provide chemical accident emergency consulting services to users, and provide technical guidance and necessary assistance for chemical accident emergency rescue.(√)

81. [True or False Question] Hazardous chemical business units must ensure that the hazardous chemicals they handle have chemical safety technical specifications and "Safety Production Mock Exam All-In-One" safety labels. (√)

82. [True or False Question] A long sound issued by the command staff - indicating "the hook is lowered". () (×)

83, [True or False Question] When tungsten argon arc welding uses AC power supply , a high-frequency oscillator is usually used to help start the arc. (√)

84. [True or False Question] If the main person in charge or the production safety management personnel of the production, operation, and storage unit of dangerous goods fails to pass the assessment and obtain the safety qualification certificate in accordance with the regulations, the production safety supervision department shall order them to immediately suspend production and business for rectification. . (×)

85. [True or False Question] Xiaocun and Wang Wei are newly assigned workers to the chemical plant. Xiaocun is the escort and Wang Wei is the driver. They were assigned to work without any training. Together, they transported a batch of hazardous chemicals to the distant city B. Halfway through the car, Xiaocun wanted to smoke. Wang Wei said: "Be patient a little longer. City A is just ahead. You can definitely buy it there." So Wang Wei accelerated his speed, took a shortcut and drove at high speed, and soon arrived at City A. Wang Wei parked the car at the entrance of a larger department store. Xiaocun went in and bought a pack of cigarettes. They were on the road again, picking up another hitchhiker on the road. They smoked and talked while driving. It was time to eat, but they hadn't arrived in City B yet, so they stopped to eat. After the meal, the two came out together. Wang Wei asked Xiaocun: "Do you know what is in the car?" Xiaocun said: "It's easy, I will know it right away." So he picked up a bottle of chemicals, opened the lid, and smelled it. He smelled it and said: "Hydrochloric acid." Wang Wei praised Xiaocun: "Your nose is really amazing!". Based on the above situation, please judge whether Wang Wei can change his driving route privately. When transporting hazardous chemicals, the vehicle passes through urban areas and densely populated areas, and stops in front of densely populated department stores and restaurants. () ( (√)

87. [True or False Question] During the emergency rescue process, emergency rescue personnel should set up safety checkpoints at the main traffic arteries and intersections in the accident area to control the passage of rescue vehicles. (×)

88. [True or False Question] When sodium ion exchanger is regenerated, in a certain concentration of salt solution, the absorption of Na+ by the resin will take precedence over Ca2+ and Mg2+. () (√)

89. [Judgment Question] The review or demonstration of the emergency plan should focus on the practicality of the emergency plan, the completeness of the basic elements, the pertinence of the preventive measures, the scientific nature of the organizational system, the operability of the response procedures, and the emergency response. The feasibility of safeguard measures, the coherence of emergency plans, etc. (√)

90. [True or False Question] Induction lightning is also called lightning induction, which is divided into electrostatic induction lightning and electromagnetic induction lightning. (√)

91. [True or False Question] According to the occurrence process, nature and mechanism of public emergencies , public emergencies are mainly divided into three categories. (×)

92. [True or False Question] The explosion limit of a mixture is not fixed, but changes with the temperature, pressure, etc. of the mixture. (√)

93. [True or False Question] The dry high-pressure water meter is composed of a water meter core and a meter head. (√)

94. [True or False Question] Worn or cracked wheel rims will cause the risk of crane derailment. () (√)

95. [True or False Question] All lifting operations should be stopped in wind conditions of level 4 and above. (×)

96. [Judgment Question] If the production and business unit fails to take preventive measures in accordance with the emergency plan, resulting in ineffective accident rescue or serious consequences, the production safety supervision and management department at or above the county level shall, in accordance with the provisions of relevant laws, regulations and rules, Order the suspension of production and business for rectification, and impose administrative penalties in accordance with the law. (√)

97. [Judgement Question] Occupational disease protection facilities include equipment and facilities that reduce the intensity or concentration of occupational disease hazard factors, as well as related buildings and structures.(√)

98. [True or False Question] Corrosive items must be stored in different categories, properties, hazard levels, fire extinguishing methods, etc. It is prohibited to store items with conflicting properties in the same warehouse. (√)

99. [True or False Question] Most of the substances alkylated by and have the risk of fire and explosion. (√)

100. [True or False Question] When loading, unloading and transporting flammable liquids, you must load and unload with care. Rolling, friction, dragging and other operations that endanger safety are strictly prohibited. (√)

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