Question bank source: Safety production mock test, one-stop public account applet
The safety officer-C certificate exam materials are a set of safety officer-C certificate mock test questions generated in the general question bank of the safety production mock test. 2024 [Safety Officer-C Certificate] Exam Information and Safety Officer-C Certificate Mock Exam Questions
1. [Multiple choice questions] The "Regulations on the Administration of Construction Project Safety Production" clarifies the main body of responsibility for construction project safety production, and the following belong to the main body of responsibility for construction project safety production. （ ADE ）
A. Construction unit
B, the project cost consulting agency
C. Property management company
D. Survey and design units
E. Installation and dismantling units of self-erecting facilities such as hoisting machinery and overall hoisting scaffolding, formwork, etc
2. [Multiple choice questions] The "Regulations on the Administration of Work Safety in Construction Projects" stipulates that the construction unit shall prepare safety technical measures and temporary electricity consumption plans on the construction site in the construction organization design, and prepare special construction plans for the following sub-projects with greater risk of reaching a certain scale, and attach the safety calculation results, which shall be implemented after signing by (), and shall be supervised by full-time safety production management personnel on site. （ AB ）
A. The technical person in charge of the construction unit
B. Chief Engineer
C. Full-time safety production management personnel
D. Project leader
E. Constructor
3. [Multiple choice questions] The following statements about welding operations in the gondola of high-altitude work are correct (). （ ABCD ）
A. Protective measures should be taken for gondola equipment, wire rope and cable
B. The welding machine shall not be placed in the hanging basket
C. The welding cable shall not be in contact with any part of the hanging basket
D. The welding tongs shall not be hung on the hanging basket
E. The hanging basket can be used as the welding zero line
4. [Multiple choice questions] The following statements about the construction elevator protective fence door, the correct ones are () ( ABCD )
A. During maintenance, the fence door should be able to be opened from the inside in order to enter and exit from the ground protective fence door
B. The fence gate should be equipped with mechanical locking and electrical safety switches
C. When the cage is located at the bottom of the specified position, the fence door can be opened
D. The cage cannot be started after the fence door is opened
E. The cage can open the fence door during operation
5. [Multiple choice questions] Which of the following sub-projects is a major accident hazard? （）（ ACE ）
A. Key inspections
B. Regular inspection
C. Spot checks
D. Irregular inspection
E. Special inspection
6. [Multiple choice questions] Which of the following descriptions of the specific requirements for safety technology disclosure are correct? （ ACD ）
A. The safety technology disclosure of each type of work is generally carried out simultaneously with the safety technology disclosure of the sub-items
B. The disclosure should be in the form of a short and slogan
C. Both parties shall sign and confirm the handover
D. The disclosure must be specific, clear and targeted
E. The handover should be in oral form
7. [Multiple choice questions] The layout of the temporary building should be consistent with the overall plan of the construction organization design, and should comply with () and relevant national regulations. （ BCDE ）
A. Beautiful
B. Safety
C. Fire protection
D. Energy saving
E. Environmental protection
8. [Multiple choice questions] Employers that cause occupational disease hazards shall set up equipment, tools, utensils and other facilities that shall meet the requirements for the protection of workers. （ AC ）
A. Physiological health
B. Healthy thinking
C. Mental health
D. Professional ethics
E. Do not use
9. [Multiple choice questions] The Ministry of Public Security promulgated the "Regulations on the Administration of Fire Safety in Public Entertainment Venues" on May 25, 1999, which stipulates that the establishment of public entertainment venues in underground buildings shall comply with the following provisions (). （ ABCDE ）
A. Only allowed to be located on the basement floor
B. There should be no less than two safety exits to the ground, and the width of safety exits, stairs and walkways should comply with the provisions of the relevant building design fire protection codes
C. Mechanical smoke prevention and exhaust facilities should be set up
D. An automatic fire alarm system and an automatic sprinkler system should be set up
E. It is strictly forbidden to use liquefied petroleum gas
10. [Multiple choice question] The correct description of the hidden dangers in the following figure is ().
（ ABCD ）
A. When disassembling and installing the template, there should be a special person to command
B. The operator did not take the initiative to avoid the lifting object
C. There is no hanging basket outside the guardrail
D. There are personnel at the construction site who do not wear safety helmets
11. [Multiple choice questions] If it is necessary to move objects at the scene of the accident due to reasons such as rescuing people, preventing the expansion of the accident, and dredging traffic, it shall be (). （ ABD ）
A. Make a sign
B. Draw a sketch of the site and make a written record
C. Direct movement
D. Properly preserve important traces and physical evidence at the scene
E. Waiting for processing
12. [Multiple choice question] During the use of scaffolding, it is strictly forbidden to dismantle (). （ ACD ）
A. Longitudinal transverse horizontal rod at the main node
B. On the non-construction layer, the transverse horizontal rod at the non-main node
C. Connecting wall pieces
D. Longitudinal and transverse sweeping rods
E. Footboard on the non-working layer
13. [Multiple choice questions] The hydraulic synchronous lifting system of large components and equipment is mainly composed of () and other parts. （ ABCDE ）
A. Flexible steel strand or rigid bracket load-bearing system
B. Electro-hydraulic proportional hydraulic control system
C. Computer control system
D. Sensor detection system
E. Hydraulic lifter
14. [Multiple choice questions] The description of the longitudinal horizontal rod structure of the scaffold is correct (). （ BE ）
A. It should be arranged on the outside of the pole
B. It should be arranged on the inside of the pole
C. Welding should be used to lengthen
D. The length of a single root should not be less than 2 spans
E. The length of a single root should not be less than 3 spans
15. [Multiple choice questions] Employees with work-related injuries shall cease to enjoy work-related injury insurance benefits under the following circumstances. （ ABCD ）
A. Loss of conditions for enjoying benefits
B. Refusal to accept the appraisal of labor ability
C. Refusal of treatment
D. The sentenced person is currently serving his sentence in prison
E. Accident identification is wrong
16. [Multiple choice questions] The main contents of the safety production management objectives of construction projects include ( ACD )
A. Production safety accident control objectives
B. Project profit target
C. Safety compliance objectives
D. Civilized construction to achieve the goal
E. Construction progress target
17. [Multiple choice questions] Before the installation of construction lifting machinery, the general contractor signs a subcontract with subcontractors such as () to implement safety responsibilities. （ ADE ）
A. Installation
B. Production
C. Leasing
D. Maintenance
E. Disassembly
18. [Multiple choice question] The rated leakage action current of the electric protector in the switch box in the humid place is (). （ B ）
A、≥15mA
B、≤15mA
C、30mA
D、≤30mA
19. [Multiple choice question] The content of the system of production safety supervision and management in the mainland is (). （ ABC ）
A. Comprehensive supervision and industry supervision
B. National supervision and local supervision
C. Government supervision and other supervision
D. Supervision of administrative departments
E. Administrative law enforcement of safety supervision agencies
20. [Multiple choice questions] Before the vibratory hammer construction operation, the pile hammer should be tested, and the content of the test includes (). （ BCDE ）
A. Check whether the hook has a falling off device
B. Check whether the insulation value of the motor and cable meets the requirements
C. Check that all components in the electrical box should be in good condition
D. Check the tightness of the transmission belt
E. Check whether the bolts at the junction of the gripper and the vibrator are tightened
21. [Multiple choice questions] The general contractor shall perform the following safety duties: () ( ABCE )
A. Review the special construction plan for the installation of construction hoisting machinery formulated by the installation unit
B. Review the emergency rescue plan for production safety accidents;
C. Review the special construction plan of the demolition project
D. Review the special equipment manufacturing license of construction hoisting machinery
E. Review the safety production management system
22. [Multiple choice questions] The safety belts used on the construction site are divided into () according to the type of operation. （ ABC ）
A. Safety belt for fence operation
B. Regional restriction seat belts
C. Falling cliff safety belt
D. Seated seat belts
23. [Multiple choice questions] The benchmark conditions for the construction site to compile the electricity organization design are ().
A. 5 or more sets of electrical equipment
B. The total capacity of electrical equipment is 100kW and above
C. The total capacity of electrical equipment is 50kW and above
D. 10 or more sets of electrical equipment
E. 5 or more sets of electrical equipment, and the total capacity of electrical equipment is 100kW or more
24. [Multiple choice questions] According to the "Regulations on the Safety Supervision and Administration of Construction Lifting Machinery", construction lifting machinery under one of the following circumstances shall not be rented or used (). （ ABCDE ）
A. It is eliminated or prohibited by the state
B. Exceeding the safety technical standards or the service life specified by the manufacturer
C. After inspection, it does not meet the safety technical standards
D. There is no complete safety technical file
E. There is no complete and effective safety protection device
25. [Multiple choice questions] According to the "Regulations on the Administration of Work Safety in Construction Projects", the construction unit should set up obvious safety warning signs in the following dangerous parts. （ BCE ）
A. Crossroads
B. Elevator shaft
C. Scaffolding
D. Fork in the road
E. The entrance to the construction site
26. [Multiple choice questions] According to the "Regulations on the Safety Management of the Construction of Assembled Integral Concrete Structure Engineering", the construction of prefabricated integral concrete structure engineering implements four systems and one promotion, and the following options are correct (). （ ABCD ）
A. Deepen the construction design system
B. Special construction plan demonstration system
C. Hoisting order system
D. Certificate system
E. Promote the BIM technology system
27. [Multiple choice questions] The basic requirements that should be met for template installation are (). （ ACDE ）
A. The shape, size and mutual position of each part of the engineering structure and components should be ensured
B. A small amount of slurry can be leaked
C. The structure meets the requirements of the template design
D. It should be able to withstand the load generated during the construction process
E. Temporary fixed facilities must be set up
28. [Multiple choice questions] () should be set at the passages and stairs of the living area and office area. （ BCD ）
A. Slogan
B. Emergency evacuation
C. Escape indication signs
D. Emergency lighting
E. High-quality engineering demonstration card
29. [Multiple choice questions] The horizontal transportation operation of the locomotive includes: (). （ ABCDE ）
A. Horizontal transportation system of electric locomotive
B. Construction materials for vertical transportation
C. Safety measures for the working face of the enclosed shield
D. Unearthed box for shield work
E. Enclosure of the cave well
30. [Multiple choice questions] Scaffolding can be divided into () according to the frame method. （ ABCD ）
A. Rods combined scaffolding
B. Frame combined scaffolding
C. Grid member combined scaffolding
D. Bench
E. Climbing frame
31. [Multiple choice questions] The main technical parameters of the high-voltage circuit breaker are: (), rated blocking capacity, dynamic stabilization current, thermal stabilization current, closing time and opening time, etc. （ CDE ）
A. Rated frequency
B. Arc extinguishing system
C. Rated voltage
D. Rated current
E. Rated breaking current
32. [Multiple choice question] On March 13, 2008, a construction unit contracted the construction project of Zhengshengmen. In the process of pouring concrete beams and slabs, after overnight construction, 260m³ has been poured on the morning of the 13th, about 1O, when the pouring is about to end, the formwork support system of the high-span (1) ~ (4) axis part suddenly collapses, causing 8 construction personnel and 1 person who is inspecting below the frame body to be buried in the working face of pouring concrete. After investigation and calculation, the actual tensile (compressive) strength value of the vertical rod steel pipe reached 279.865N/mm², which reached 1.37 times of the allowable tensile (compressive) strength value of 205N/mm² in the design of the vertical rod. It is precisely because of the serious quality problems of the formwork support system that the stability and load force are insufficient, and it cannot withstand such a large area of concrete pouring and collapse. There was a formwork support system collapse accident, resulting in 4 deaths, 5 injuries, and direct economic losses of about 1.5 million yuan. Please answer:
(2) According to the Regulations on the Reporting, Investigation and Handling of Production Safety Accidents, the accident belongs to (). （ C ）
A. Particularly serious accidents
B. Major accidents
C. Major accidents
D. General accidents
33. [Multiple choice question] 30 pay attention to the uniform stress distribution of the membrane surface when hoisting the cable membrane, and if necessary, the continuous "()" can be welded on the membrane, and the buckle is clamped with two steel plates to hoist. （ C ）
A. Install the buckle
B. Install the lifting ring
C. Hoisting buckle
D. Hoisting eyebolts
34. [Multiple Choice] The Regulations on Work-related Injury Insurance stipulate that if an employee or his close relatives believe that it is a work-related injury, but the employer does not consider it to be a work-related injury, () shall bear the burden of proof. （ A ）
A. Employer
B. Employees
C. Government
D. Close relatives
35. [Multiple choice question] The "Regulations on the Administration of Work Safety in Construction Projects" stipulates that the following statements about construction lifting machinery are wrong ().
A. After the installation of construction hoisting machinery, the general contractor should organize the use. Installation. Supervision and other units to carry out joint acceptance
B. After the installation of construction hoisting machinery, it shall be inspected by a third party, and shall not be used without acceptance or unqualified acceptance
C. Implement general construction contracting; The general contractor of the construction shall organize joint acceptance
D. Before acceptance, the construction lifting machinery shall be supervised and inspected by the inspection and testing agency designated by the supervision unit
36. [Multiple choice question] The following statement about the requirements for the safe use of motor graders is wrong (). （ B ）
A. There shall be no tree roots, large stones and other obstacles in the motor grader operation area
B. The grader can be used to haul other machinery
C. The ground with solid soil should be loosened with a tooth rake first, and the teeth should be slowly lowered when loosening
D. When the motor grader turns or turns around, it should use a low speed gear
37. [Multiple choice question] Which of the following units shall obtain the corresponding level of qualification certificate in accordance with the law and contract the project within the scope permitted by its qualification level. （）（ C ）
A. Construction unit
B. Real estate companies
C. Construction unit
D. Engineering unit
38. [Multiple choice question] The use registration authority shall, within () working days from the date of receipt of the materials submitted by the user, issue a registration certificate for the use of construction lifting machinery that meets the registration conditions and has complete information. （ B ）
A、3
B、7
C、15
D、30
39. [Multiple choice question] According to the "Safety Technical Code for Fastener-type Steel Pipe Scaffolding in Building Construction" (JGJ130-2011), the thickness of the non-slip wooden strips on the scaffold board of the pedestrian ramp and the material transportation ramp should be (). （ B ）
A、10~20mm
B、20~30mm
C、25~35mm
D、30~40mm
40. [Multiple choice question] A safety training institution that has obtained a qualification certificate can undertake the training of special operation personnel. （ C ）
A, - grade
B, Level 2
C. Level 3
D. Level 4
41. [Multiple choice question] The soil, materials and mobile construction machinery should be kept at a certain distance from the edge of the pit, and when the soil quality is good, it should be kept away from the edge of the pit (). （ D ）
A、0．5m以外／高度不超0．5m
B、0．8m以外／高度不超1．5m
C、1m以外／高度不超lm
D. Stacked according to the provisions of the construction plan
42. [Multiple choice question] It is forbidden to install () and attachment devices that are not manufactured by the original manufacturer on construction lifting machinery without authorization. （ A ）
A. Standard section
B. Accessories
C. Bolts
D. Hook
43. [Multiple Choice] The datum of the fall height refers to the horizontal plane that passes through the range of possible falls (). （ C ）
A. The highest place
B. The farthest place
C. The lowest place
D. Nearest place
44. [Multiple choice question] foundation pit monitoring points should be arranged within the scope of (). （ A ）
A. 1~2 times the excavation depth from the edge of the foundation pit
B. 0.5~1 times the excavation depth from the edge of the foundation pit
C. 0.8~1.5 times the excavation depth from the edge of the foundation pit
D. 2~3 times the excavation depth from the edge of the foundation pit
45. [Multiple Choice] A fixed point should be set when the power supply cable of the tower crane is laid vertically, and the distance shall not exceed (), and avoid mechanical damage (D)
A、8m
B、15m
C、12m
D、10m
46. [Multiple Choice] The appearance of the dark green color of the cylinder is used to hold (). （ B ）
A. Acetylene
B. Hydrogen
C. Ammonia
D. Oxygen
47. [Multiple choice question] As shown in the figure, the potential safety hazards of the template support are ()
（ A ）
A. The vertical rod support is missing the horizontal rod and the sweeping rod tie
B. The safety net is damaged
C. Steel pipes are stacked at will
D. The pole joint is misconnected
48. [Multiple Choice] When wearing a helmet, the axial distance (vertical spacing) between the highest point on the top of the head and the highest point on the inside of the shell (). （ C ）
A. Not more than 20mm
B. Not more than 40mm
C. Not more than 50mm
D. Not more than 60mm
49. [Multiple choice question] If the safety production assessment is qualified, the construction administrative department shall issue a safety production assessment certificate for the management personnel of the construction enterprise in the core of (); For those who are not qualified, they should be notified and. Safety Production Mock Exam One-Point Pass. Explain the reasons and re-evaluate within a time limit. （ D ）
A. 30 working days
B. 10 working days
C. 15 working days
D. 20 working days
50. [Multiple choice question] The mesh density of the dense mesh safety net should be 10cm, no 10cm=100cm², and the area is greater than or equal to () mu. （ C ）
A、1000
B、1500
C、2000
D、2500
51. [Multiple choice question] Construction enterprises must apply for accident injury insurance for employees engaged in dangerous operations, and pay the insurance premium (A)
A. Construction enterprises
B. Employees
C. Construction enterprises and employees
D. Insurance companies
52. [Multiple choice question] Construction, safety production simulation examination is clear, and the () in the third-level fire resistance grade in the building object is the combustion body. （ D ）
A. Wall
B, column
C. Floor slab
D. Roof load-bearing members
53. [Multiple Choice] Materials can be stacked in the building (). （ A ）
A. Warehouse
B. Stairwell
C. Rest platform
D. Balcony
54. [Multiple choice question] The requirements of the architectural design unit and the construction enterprise to reduce the quality of the project put forward by the construction unit for violating the laws, administrative regulations and construction project quality and safety standards, () ( B )
A. It can be refused
B. It should be rejected
C. No refusal
D. Decide whether to refuse or not according to the situation
55. [Multiple choice question] If the construction lifting machinery needs to be attached during use, () the original installation unit or the installation unit with corresponding qualifications shall be entrusted to implement it in accordance with the special construction case.
A. Rental unit
B. User unit
C. Supervision unit
D. The construction unit is fish-caused
56. [Multiple choice question] When the load-bearing welded steel frame and the template are installed together, the side mold and bottom mold of the beam must be fixed in the load-bearing welded steel frame (). （ A ）
A. Node
B. Above
C. Intermediate
D. Below
57. [Multiple choice question] When the support mode of setting the upright rod at the bottom of the beam is adopted, the load borne by the upright rod at the bottom of the beam accounts for more than () of the total load. （ A ）
A、60%
B、50%
C、30%
D、65%
58. [Multiple choice question] When the inclination angle between the scissor brace and the ground of the fastener-type double-row steel pipe scaffold is 45°, the number of scissor braces spanning the upright rod is at most (). （ B ）
A、8
B、7
C、6
D、5
59. [Multiple choice question] A fixed electric drive equipment with a circular motion walkway (such as a plate or belt) to transport passengers horizontally or at an angle is called (). （ B ）
A. Escalators
B. Moving walks
C. Vertical elevator
D. High-speed elevator
60. [Multiple choice question] In the operation button of the construction elevator, () must adopt a non-automatic reset type. （ D ）
A. Rise button
B. Drop button
C. Stop button
D. Emergency stop button
61. [Multiple choice question] The construction unit shall, within 15 days from the date of approval of the commencement report, file the local construction administrative department at or above the county level or other relevant departments where the customs declaration construction project is located. （ B ）
A. Expenditure plan for security measures
B. Information on construction safety measures
C. Break porcelain for safe construction organization
D. Safety construction management system.
62. [Multiple choice question] The construction unit shall formulate a specific implementation plan for the prevention and control of dust pollution during construction. Construction earthwork, engineering residue, construction waste shall be removed in a timely manner; If it is stored in the site, it shall be covered with a closed dust net. Engineering residue and construction waste shall be disposed of. （ B ）
A. Harmless
B. Recycling
C. Reduction
D. Environmental protection
63. [Multiple choice question] The construction unit shall provide safety protective equipment and safety protective clothing to the workers, and () the hazards of dangerous positions and illegal operations. （ C ）
A. Written, source of risk
B. Oral, source of risk
C. Written, operating procedures
D. Oral, operating procedures
64. [Multiple choice question] When the wooden scaffold board is butt and tiled, the length of the two scaffold boards extending outward and the length of the transverse horizontal rod should not be greater than (); When lap laying, the lap length of the two scaffold boards extending outward from the transverse horizontal rod should not be less than (). （ C ）
A、400mm，200mm
B、300mm，150mm
C、300mm，200mm
D、400mm，300mm
65. [Multiple choice question] Without the signature of (), building materials, building accessories and equipment shall not be used or installed in the project, and the construction unit shall not carry out the construction of the next process (B)
A. Chief Engineer
B. Supervision Engineer
C. Chief Engineer
D. Engineer
66. [Multiple choice question] According to the "Regulations on the Administration of Work Safety in Construction Projects", the construction unit shall not put forward requirements for survey, design, construction, supervision and other units that do not meet the requirements of laws, regulations and mandatory standards for construction project safety, and shall not (). （ D ）
A. Change the cost agreed in the contract
B. Change the content of the contract
C. Compress the quota and stipulate the construction period
D. Compress the construction period agreed in the contract
67. [Multiple choice question] According to the "Regulations on the Administration of Work Safety in Construction Projects", the safety protective equipment and safety protective clothing that should be provided to the operators are (). （ A ）
A. Construction unit
B. Supervision unit
C. Construction unit
D. Safety supervision and management organization
68. [Multiple choice question] According to the "Regulations on the Administration of Safety Production in Construction Projects", the safety protection equipment, mechanical equipment, construction equipment and accessories at the construction site must be managed by special personnel, regularly inspected, repaired and maintained, and the corresponding () shall be established and scrapped in a timely manner in accordance with relevant national regulations. （ A ）
A. Data files
B. System files
C. Review the file
D. Backup files
69. [Multiple choice question] According to the "Regulations on the Safety Management of Concrete Structure Engineering Construction" for the Integral Assembly and Safety Production Simulation Examination, the following are not the responsibilities of the operators. （ D ）
A. Strictly implement safety operation procedures
B. Strictly implement the certificate system
C. Personnel working at height should wear personal protective equipment such as retractable safety belts according to regulations
D. Supervise each other, consciously abide by on-site safety discipline, and improve the awareness of safe operation
70. [Multiple choice question] According to the provisions of the Order of the Ministry of Housing and Urban-Rural Development (No. 17), the safety production assessment certificate of the "safety management personnel" of a construction enterprise is lost, and the correct approach is (). （ D ）
A. Through the employed enterprise, declare the invalidation of the original safety production assessment certificate to the assessment authority and apply for reissuance
B. Apply for cancellation to the original safety production assessment certificate assessment authority through the employed enterprise
C. Through the employed enterprise, declare to the original safety production assessment certificate assessment authority that it is invalid, and reissue it after paying the fine
D. The declaration on the public media is invalid, and the applicant shall apply to the original safety production assessment certificate assessment authority for reissuance through the employed enterprise
71. [Multiple Choice] The maximum length of the transverse horizontal rod (small crossbar) should be ():( C)
A、3500mm
B、4000mm
C、2200mm
D、5000mm
72. [Multiple choice question] The temporary storage location of blasting equipment must be approved by (). （ D ）
A. Construction unit
B. Supervision unit
C. Design unit
D. Relevant local departments
73. [Multiple choice question] Team-level safety education is the education before the new worker is assigned to the team and starts work. The following contents are not part of the safety education content of the team (). （ B ）
A. The nature of my construction and production work, the necessary safety knowledge, the performance and role of machinery and equipment and safety protection facilities
B. Guidelines, policies and regulations on production safety in mainland China
C. Safety operation procedures for this type of work
D. Analysis of accident cases of this type of work, accident-prone parts and requirements for the use of labor protection equipment
74. [Multiple choice question] If an employer terminates its production and business activities, it shall report to the original reporting authority and go through the cancellation procedures within () days from the date of termination of the production and business activities. （ B ）
A、5
B、15
C、20
D、30
75. [Multiple Choice] The longitudinal horizontal rod of the scaffold 'latest analysis' frame should be set on the vertical pole (), and the length of a single rod should not be less than () span. （ D ）
A, outside; 2
B, lateral; 3
C, medial; 2
D, medial; 3
76. [Multiple choice question] The roof of the boiler house is not allowed to use ____. （ B ）
A. Asbestos board
B. Simple linoleum roof
C. Corrugated iron
D. All of the above
77. [Multiple choice question] () The project supervision unit exceeds the scope permitted by the qualification level of the unit or undertakes the project supervision business in the name of other project supervision units. （ A ）
A. Prohibitions
B. In some special circumstances
C. With the permission of the competent construction department
D. Yes as needed
78. The basic meaning of [Multiple Choice] () is to remind people to pay attention to their surroundings in order to avoid dangerous graphic signs. （ B ）
A. Prohibitory signs
B. Warning signs
C. Indication signs
D. Warning signs
79. [Multiple choice question] () Report to the production safety supervision and management department of the people's government of the province, autonomous region and municipality directly under the Central Government and the relevant departments responsible for the supervision and management of production safety. （ B ）
A. Major accidents
B. Major accidents
C. Particularly serious accidents
D. General accidents
80. [True or False] The "Work Safety Law" stipulates that production and business operation entities must provide employees with labor protection articles that meet local standards or industry standards. （ × ）
81. [True or False] The biggest weakness of the theory of frequent accident tendency is that it overemphasizes the influence of human personality characteristics in accidents, and ignores the role of education and training in safety management. （ √ ）
82. [True or False] Employees who are waiting for work, transferred, or changed jobs in an enterprise must receive a safety production training before returning to work, and the time can be 10 hours. （）（ × ）
83. [True or False] The ratio of the diameter of the winch drum to the wire rope should not be less than 50. （ √ ）
84. [True or False] The wind load during the typhoon should be considered in the typhoon area, and there should be temporary strengthening measures for the stability of the frame during the typhoon period. （ √ ）
85. [True or False] The construction task of the new hotel of Dafa Company undertaken by Dadi Construction Company shall be designed by Xinke Company and supervised by Xinke Company. During the construction process, Dadi Construction Company subcontracted the glass curtain wall, steel structure and other projects involved to Hengli Company with steel structure professional level 3 and glass curtain wall professional level 2 for construction, please judge the right or wrong of the statement.
(5) Encourage individuals to contract subcontracted projects. （ × ）
86. [True or False] The construction unit shall take special protective measures for adjacent buildings, structures, and underground pipelines that may cause damage due to the construction of the construction project. （ × ）
87. [True or False] When the professional supervision engineer is transferred to a construction project, the chief engineer shall orally notify the construction unit. （）（ × ）
88. [True or False] When dismantling the dome formwork, it should start from the poles around the structure and symmetrically dismantle to the center of the structure. （ × ）
89. [True or False] The measure system is the guarantee for the realization of safety goals, and the concretization and systematization of safety measures. （ √ ）
90. [True or False] The vibrator tests vibration on the initially set concrete, scaffolding board and dry and hard ground. When the maintenance or operation is interrupted, the power supply should be cut off. （ √ ）
91. [True or False] Personnel who climb and suspend at height, as well as those who set up safety facilities for working at height, must undergo on-the-job training and undergo regular physical examinations. （）（ × ）
92. [True or False] Protective railings and foot guards should be set up on both sides of the passage platform between various vertical transportation equipment and facilities such as construction elevators, gantries and derrick material hoists and buildings. （ √ ）
93. [True or False] When compiling the construction organization design, the construction unit shall formulate and organize the implementation of special construction safety technical measures, and make technical disclosures to all construction personnel. （ × ）
94. [True or False] There is a project that sets up a gravity retaining wall, the soil is soft, the foundation of the retaining wall is buried deep of 0.5m, and there is a hillside behind the wall, and during the construction process, the retaining wall collapses, causing the collapse of the earthwork slope. Please determine whether the following accident cause analysis is correct or false.
(4) Failure to make a safety technical disclosure. （）（ × ）
95. [True or False] A project leased a QTC25A tower crane, and the tower crane factory hired Li for the first installation. According to the tower crane installation procedure, after the tower body, tower cap and counterweight arm are installed, the crane arm is installed (the tower crane is a self-installed horizontal arm tower crane). When the crane boom is installed, there are strict technical requirements for the position of the lifting point, the tethering method of the sling, and the position of the center of gravity. According to the requirements, a six-rate sling should be set. Li and others set up 2 hanging points, use 4 wire ropes, in the case that the sling is not firmly tied, pull up the lifting arm, when installing the pull rod, the wire rope at the lifting point is under the action of impact force, after the two lateral oblique web rods of the lifting arm are pulled off, move about 450mm horizontally to the root of the lifting arm. The boom sank instantly, causing the wire rope to break, and the boom fell with the hinge point as the axis, and the five operators on the boom fell with it, resulting in 4 deaths and 1 injury. After the accident investigation, the tower crane has no technical drawings, no production process, no product inspection report, and the operator is not wearing a seat belt, and is operating without a license. Please determine whether the following accident cause analysis is correct or false.
(1) The tower crane manufacturer illegally hires individuals without installation qualifications to install tower cranes. （）（ √ ）
96. [True or False] According to the "Several Opinions on Further Standardizing the Reporting, Investigation and Handling of Production Safety Accidents in Housing Construction and Municipal Engineering" (Jianzhi [2007] No. 257), a major accident refers to an accident that causes the death of more than 10 people and less than 20 people, or the serious injury of more than 50 people and less than 100 people, or the direct economic loss of between 50 million yuan and 100 million yuan. （ × ）
97. [True or False] The three elements of a legal relationship are closely related, but not all legal relationships must have these three elements. （ × ）
98. [True or False] Production and business operation units must participate in work-related injury social insurance in accordance with the law and pay insurance premiums for employees. （）（ √ ）
99. [True or False] When using the high-pressure jet grouting water interception curtain that is occluded with the row pile, the pile row construction should be carried out first, and then the high-pressure jet grouting construction should be carried out. （ √ ）
100. [True or False] The welding of high-frequency arc striking should have a good high-frequency protection device, and it cannot be protected by reducing the frequency. （ √ ）
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