Source of question bank: Safety production mock examination, WeChat public account mini program
2021 A certificate (safety officer) test questions and answers and A certificate (safety officer) mock exam question bank, including A certificate (safety officer) test questions and answers and analysis and A certificate (safety officer) mock exam question bank exercises. Combining the latest syllabus of the national A certificate (safety officer) exam and a summary of the real questions of the A certificate (safety officer) exam from the safety production mock exam Yidiantong official account, it is helpful to practice before the A certificate (safety officer) homework mock exam.
1. [Single-choice question] When the bottom of the column is not at the same height, the vertical sweeping pole at the high place should extend to the low place by no less than (), the height difference should not be greater than 1m, and the distance between the post and the upper edge of the slope should not be less than 0.5m. Article 6.4.2 of "Technical Code for Safety of Construction Formwork JGJ162-2008") (B)
A, a cross
B, two spans
C, three-span
D, four-span
2. [Single-choice question] When the external power line voltage level is 10kV, the minimum safe distance between the protective equipment and the external power line is (). (B)
A、1.2m
B 、 1.7m
C、2.2m
D 、 2.7m
3. [Single-choice question] When the lifting weight exceeds 110% of the maximum lifting weight, the lifting weight limiter should act to stop the tower crane from running in the direction (). (A)
A, rise
B. Decline
C, left and right
D, up and down
4. [Single-choice questions] General construction contracting is implemented for construction projects, and the special plan should be compiled by the () organization. (A)
A. Construction general contracting
B. Subcontractor
C. Professional team
D. Supervision unit
5. [Single-choice question] The sinking amount of the piston rod of the hydraulic cylinder of the working device of the crawler-type single-bucket hydraulic excavator should not be greater than ()mm/h. (C)
A、50
B、80
C、100
D、120
6. [Single-choice question] If multiple excavators excavate mechanically on the same working surface, the distance between excavators should be greater than (). (B)
A、5m
B、10m
C、15m
D、20m
7. [Single-choice question] Special stairways for construction () should be set up in the foundation pit. (B)
A. Material
B. Personnel
C. Machinery
D. Equipment
8. [Single-choice question] In the periodical inspection of the tower crane hook, which of the following situations does not need to be scrapped (). (D)
A. Use a 20 times magnifying glass to observe cracks on the surface
B. The wear of the mandrel exceeds 5% of its diameter
C. The wear of the cross-section at the lanyard exceeds 10% of the original height
D. The opening degree is increased by 5% compared to the original size
9. [Single-choice questions] For sub-projects with greater risk, after expert argumentation, the argumentation report is submitted and signed by the construction unit (), the project supervisory engineer, and the project leader of the construction unit before they can be organized for implementation. (A)
A. Technical leader
B. Project leader
C. In charge of safety production manager
D. Technical manager
10. [Single-choice question] During winter construction, the welding site should be cleaned up in advance, and there must be no (). (C)
A, frost
B. Sundries
C, ice and snow
D, wood board
11. [Single choice] Regarding the installation and disassembly of construction hoisting machinery, the following statement is wrong: (). (C)
A. For the installation and disassembly of construction hoisting machinery and overall lifting scaffolding, formwork and other self-elevating erection facilities, disassembly and assembly plans and safety construction measures should be formulated
B. The installation and disassembly of construction hoisting machinery and overall lifting scaffolding, formwork and other self-elevating erection facilities shall be supervised by professional and technical personnel on site
C. After the installation of construction hoisting machinery and self-elevating erection facilities such as overall lifting scaffolding and formwork is completed, the general contractor shall self-inspect, issue a self-inspection qualification certificate, and provide safety instructions to the construction unit, go through the acceptance procedures and sign
D. Special operation personnel such as vertical transport machinery operators, installation and disassembly workers, blasting operators, lifting signal workers, ascending and erecting operators, etc., must undergo special safety operation training in accordance with relevant national regulations and obtain special operation qualification certificates. , Before starting work
12. [Single-choice question] According to the "Safety Production Law", the production and business unit must ensure that all employees on the job go through (), otherwise the production and business unit shall bear legal responsibility. (D)
A. Safety awareness education
B. Safety technical training
C. Safety operation training
D. Safety production education and training
13. [Single-choice questions] When working (), wrap the welding wire around the body or put it on the back. (D)
A. No
B. Yes
C, general
D. Forbidden
14. [Single-choice question] In the following cases, the pulley should be scrapped (). (A)
A. Cracks or rim damage
B. The wear of the wall thickness of the pulley rope groove reaches 10% of the original wall thickness
C. The amount of wear at the bottom of the pulley groove exceeds 20% of the corresponding wire rope diameter
D. The wall thickness of the pulley rope groove wears up to 15% of the original wall thickness
15. [Single-choice questions] Practitioners who have undergone safety education and training, understand the job operating procedures, but fail to comply with them and cause an accident, the perpetrator shall be responsible for (), and the responsible person shall be responsible for management. (C)
A. Leadership
B. Management
C, direct
D. Indirect
16. [Single-choice questions] Practitioners should strictly abide by the safety production regulations and operating procedures of this project, obey management, and wear and use them correctly (). (B)
A. Labor production supplies
B. Labor protection products
C. Labor identification
D. Labor tools
17. [Single-choice questions] The protective railings for side-by-side operations should be composed of cross bars, vertical bars, and toe boards not less than () mm high. (C)
A、100
B、150
C、180
D、200
18. [Single-choice question] The following description of the main function of the gravitational moment limiter () is correct. (D)
A. Limit the gyration radius of the tower crane
B. Prevent the tower crane from derailing
C. Limit the lifting speed of the tower crane
D. Prevent the tower crane from overloading
19. [Single-choice question] The following description about the division of construction site, which is incorrect (). (D)
A. The office area and living area of the construction site should be set up separately from the operation area
B. The office and living area should be set outside the falling radius of the building under construction, otherwise, corresponding measures should be taken
C. The planning and setting of functional areas should also consider factors such as transportation, water and electricity, fire and sanitation, and environmental protection.
D. Obvious separation between living area and work area is to beautify the site.
20. [Single-choice question] (Article 6.1.2.5 of "Technical Code for Safety of Building Construction Formwork JGJ162-2008") The length of the ends of various rods protruding from the edge of the fastener cover should be (). (A)
A、100mm
B、80mm
C、50mm
D、200mm
21. [Single-choice question] The wear of the brake block of the steel bar cold drawing machine should not be greater than the original thickness (), and the brake should be sensitive. (B)
A、0.25
B、0.5
C、0.6
D、0.8
22. [Single choice] The safety factor of the steel wire rope is () (A)
A. Ratio of wire rope breaking force to allowable force
B. The ratio of the allowable pulling force of the wire rope to the breaking force
C. The ratio of the breaking force of the steel wire to the allowable force
D. Judging by experience
23. [Single-choice question] When multiple jacks are used for joint lifting, the same type of jack should be used, and the rated lifting weight of each should not be less than () times the weight of the component. (B)
A、1.0
B、1.2
C、1.5
D、2.0
24. [Single-choice question] "Decision of the State Council Security Committee on Further Strengthening Safety Training Work" (Security Committee [2012] No. 10) requires that () not be in place is a major safety hazard. (A)
A. Training
B. Check
C. Rectification
D, confession
25. [Single-choice question] Crane pulleys should be scrapped because the diameter of the bottom of the groove is reduced by the diameter of the wire rope () due to wear. (A)
A、50%
B、40%
C、30%
D、20%
26. [Single-choice question] When the crane is operating close to the overhead cable line, the minimum distance between the boom, spreader, auxiliary equipment, steel wire rope, cable wind rope and load, etc., and the 220KV transmission line () (B)
A、1
B、6
C、12
D、18
27. [Single choice] The scaffold fastener shall not be damaged when the bolt tightening torque reaches (). (A)
A、65N•m
B、85N•m
C、105N•m
D、125N•m
28. [Single-choice question] Scaffolding and its foundation should be reorganized for inspection and acceptance after being out of service for more than () months. (A)
A、1
B、6
C、2
D、5
29. [Single-choice question] Bamboo scaffolding should be laid in the direction of its main bamboo ribs perpendicular to the longitudinal horizontal rods, and should be laid flat. The four corners should be fixed on () with galvanized steel wires with a diameter of not less than 1.2mm. (B)
A. Horizontal horizontal rod
B. Longitudinal horizontal rod
C, even wall pieces
D, pole
30. [Single-choice question] The area of the mobile operating platform should not exceed 10m², the height should not exceed 5m, the aspect ratio should not exceed (), and the construction load should not exceed 1.5kN/m². (B)
A、1:1
B、3:1
C、5:1
D、10:1
31. [Single-choice question] The depth of the cable directly buried in the ground should not be less than (). (C)
A 、 0.3m
B、0.5m
C 、 0.7m
D 、 0.9m
32. [Single-choice questions] When making business decisions involving safe production, the production and business unit shall listen to the opinions of () and the safety production management personnel. (A)
A. Safety production management agency
B. Project management agency
C. Quality and Technology Management Agency
D. Project management agency
33. [Single-choice question] The angle between the cable wind rope of the material hoist and the ground should not be greater than () (A)
A, 45 degrees
B, 50 degrees
C, 60 degrees
D, 65 degrees
34. [Single-choice question] C20 concrete is poured on the foundation of the material hoist, and the thickness shall not be less than () (D)
A、150mm
B、200mm
C、250mm
D、300mm
35. [Single-choice question] According to regulations, when the amount of wear or corrosion on the surface of the wire rope reaches (), it should be scrapped. (D)
A、0.07
B、0.1
C、0.2
D、0.4
36. [Single choice] According to the relevant regulations of the Ministry of Construction, the person in charge of a construction enterprise project refers to the person in charge of construction project management authorized by (). (D)
A, general manager
B. Corporate Board of Directors
C. Enterprise labor and personnel department
D. Legal representative of the enterprise
37. [Single-choice question] According to the "Regulations on the Management of Safety in Construction Projects", the construction unit shall establish a fire safety responsibility system at the construction site and determine (). (D)
A. The person responsible for safety
B. The person responsible for security
C. Voluntary fire brigade
D. Person in charge of fire safety
38. [Single-choice question] According to the "Measures for the Establishment of Safety Production Management Institutions in Construction Enterprises and the Provision of Full-time Safety Production Management Staff", construction projects () shall regularly report the project safety production status to the enterprise safety production management organization. (A)
A. Full-time safety production management personnel
B. Construction staff
C. Technician
D. Project leader
39. [Single-choice questions] The bearing capacity of the foundation at the construction site should meet the requirements of the safe operation of the pile driving machinery; the safe distance between the pile driver and the river and the foundation pit slope should not be less than (). (C)
A、2m
B 、 3m
C 4m
D、5m
40. [Single choice] When a fire occurs at the construction site, you should call () to report to the public security fire department. (B)
A、110
B、119
C、120
D、114
41. [Single choice] The calibration period of the anti-falling safety device of the construction hoist should not exceed () (B)
A, half a year
B. One year
C. Two years
D. Three years
42. [Single-choice question] A construction elevator is a machine that uses a working cage (hanging cage) to move vertically (or inclined) along () to transport people and materials. (B)
A. Standard section
B. Rail frame
C. Catheter
D. Channel
43. [Single-choice question] According to regulations, the excavation depth of foundation pits exceeds (), and the earthwork excavation works of the trenches shall prepare a special construction plan. (C)
A, 3 meters (including 3 meters)
B, 5 meters
C, 5 meters (including 5 meters)
D, 8 meters
44. [Multiple-choice questions] Which of the following situations occurs when the wire rope must be scrapped and updated? (ACD)
A. The wire rope is severely broken
B. When the steel wire is severely worn or rusted, and the diameter of the steel wire is reduced to 10% of its diameter
C. Local focus of broken wire
D. When the wire rope loses its normal state and is severely deformed
45. [Multiple choice questions] The propulsion cylinders of the shield machine propulsion system should be installed firmly, and the propulsion () should meet the requirements of the instructions. (AB)
A. Speed
B. Itinerary
C. Time
D, ambient temperature
46. [Multiple choice questions] The material hoist must stop running in severe weather such as (). (ABD)
A, heavy rain
B, heavy fog
C, snow
D. The wind speed is 13m/s and above
47. [Multiple-choice questions] () and other materials and standard parts used in pile machinery should have the factory product certificate, quality assurance, technical performance parameters and other documents issued by the manufacturer. (ABCD)
A. Wire rope
B. Cable
C. Chuck
D. Bolt
48. [Multiple-choice questions] The organization design of temporary electricity use at the construction site should include the following contents (). (ABC)
A. Draw temporary electricity engineering drawings
B. Design lightning protection device
C. Determine protective measures
D. Develop emergency plans for safe electricity use
49. [Multiple choice questions] The safety expenses of the construction project should be used for () and shall not be used for other purposes. (ABC)
A. Purchase and update of construction safety protective equipment and facilities
B. Implementation of safety construction measures
C. Improvement of production safety conditions
D. Wages and benefits of safety management personnel
50. [Multiple-choice questions] The grounding body of the grounding device of the temporary electrical engineering at the construction site should be (). (ABD)
A, angle steel
B. Steel pipe
C, rebar
D, round steel
The above is the 2021 A card (safety officer) test questions and answers and A card (safety officer) mock exam question bank. Supports accurate test questions for A-certificate examinations in all regions of the country, and supports exercises in question banks such as safety qualification certificates, special operation certificates, and vocational skills identification.