Source of question bank: Safety production mock exam, WeChat public account mini program
The 2021 portal crane driver exam data and portal crane driver test questions and answers, including portal crane driver exam data answers and analysis, portal crane driver test questions and answer exercises. Combining the latest syllabus of the national portal crane driver exam and the summary of the real questions of the portal crane driver exam from the safety production simulation test, Yidiantong public number, will help portal crane drivers to practice before the exam.
1. [True/True Question] When an object is turned over in the air, the main hook is hung on the lower hanging point of the overturned object to make the object tip over in the air. (×)
2. [True/True] It is not allowed to use limit switches as stop buttons to cut off the power during operation. (√)
3. [True/True Question] For wire ropes that are both broken and worn, only one factor needs to be considered. (×)
4. [True/True] When the crane is working, the objects are not tightly bound and should not be lifted. (√)
5. [True/True Question] The rapid and long whistle signal is an emergency stop. (√)
6. [True and True] cranes are allowed to use stoppers as a means of stopping when power is off. (×)
7. [True/True Questions] Channels, aisles, stairs, entrances and exits, and roads leading to fire fighting equipment and water sources should be kept unobstructed. (√)
8. [True and True] Under normal circumstances, two or more cranes can be used to lift a heavy object at the same time. (×)
9. [Judgment Question] The "Special Equipment Safety Law of the People's Republic of China" stipulates that when special equipment fails or has abnormal conditions, the special equipment user shall conduct a comprehensive inspection to eliminate the hidden danger of the accident before it can continue to be used. (√)
10. [True/True] When the crane is operating, the hanging objects are not allowed to stay in the air for a long time, and the driver shall not leave the cab before the hanging objects are removed. (√)
11. [True and True] Control the lifting speed to achieve "fast at both ends, slow in the middle". (×)
12. [True/Dictionary] The lay length of a wire rope is the axial distance of any wire rope strand that is wound one round. (√)
13. [True and True] The lifting object is connected to the ground or other objects. As long as the object is not overweight, it can be lifted. (×)
14. [Judgement Question] The "Special Equipment Safety Law of the People's Republic of China" stipulates that this law does not apply to the supervision and management of the safety of special equipment used by military equipment, nuclear facilities, and aerospace vehicles. (√)
15. [Single-choice question] Article 12 of the "Special Equipment Safety Law of the People's Republic of China" stipulates that any unit or individual has the right to report violations of special equipment safety to the responsible () and relevant departments. The department receiving the report shall Deal with it in time. (A)
A. Special equipment safety supervision and management department
B. Labor Department
C. Prosecutors
16. [Single-choice question] For portal cranes with main and auxiliary hooks, the lifting speed of the auxiliary hook is compared with the lifting speed of the main hook (). (A)
A, fast
B, equal
C, slow
17. [Single-choice question] Straighten your forearm to the side and extend your five fingers naturally higher than the shoulder. The gesture signal that takes the wrist as the axis to rotate is indicated (). (B)
A. Hook down
B. The hook rises
C. Indicate the landing position
18. [Single-choice questions] () The crane has the advantages of good stability, ability to travel on soft roads or sites with no processed roads, strong climbing ability, and small turning radius. (C)
A. Car
B. Tires
C. Track
19. [Single-choice question] When the angle between two wire ropes increases, the force on each wire rope is: (). (A)
A, increase
B. Reduce
C, unchanged
20. [Single-choice question] When what phenomenon is corroded on the outside of the wire rope, it should be scrapped (). (C)
A. There are broken wires less than 10% of the total number of wires
B. Dry surface
C. The amount of surface wear or corrosion reaches 40% of the wire diameter
D. The diameter reduction of the wire rope is less than 7%
21. [Single-choice questions] "Special Equipment Operator Certificate" is reviewed once every () year. (B)
A、2
B、4
C、6
22. [Single-choice question] In the event of a short circuit or severe overload in the circuit, the power supply needs to be cut off quickly. The task that is responsible for this task is called () relay. (B)
A. Time
B. Overcurrent
C, heat
23. [Single-choice questions] () has the advantages of light weight, soft texture, corrosion resistance, elasticity, and impact reduction. (B)
A. Wire rope
B. Chemical fiber rope
C. Chain
24. [Single-choice question] To turn the object 90 degrees in the air (such as ladle), the auxiliary hook should be hung on the () part of the hanging object. (C)
A, on
B. Medium
C, down
25. [Single-choice question] When the lifting weight reaches the rated lifting capacity (), the weight safety device of the crawler crane will emit warning lights and warning sounds to remind the driver to operate carefully. (C)
A、80%
B、85%
C、90%
26. [Single choice] Anyone who illegally prints, forges, alters, resells, leases, or lends the "Special Equipment Operator Certificate" shall be fined () or less; if a crime is constituted, criminal responsibility shall be investigated according to law. (B)
A, 500 yuan
B, 1,000 yuan
C, 3000 yuan
27. [Single choice] In order to make the gap between the left and right brake pads and the brake wheel symmetrical when the brake is released, adjust: (). (C)
A. Electromagnet stroke
B. Working length of main spring
C. The gap between the brake shoe and the brake wheel
28. [Single-choice questions] Personnel engaged in special equipment operations can only operate independently after they have obtained the training and assessment () before starting their job. (C)
A. Employment certificate
B. Skill certificate
C. Special equipment operator certificate
29. [Single-choice questions] Special equipment users shall conduct special equipment safety and energy conservation education and training for special equipment operators to ensure that special equipment operators have the necessary knowledge of special equipment (). (D)
A. Security
B. Professional theory
C. Operating skills
D. Safety and energy saving
30. [Single-choice question] The long and rapid sound signal means: (). (A)
A. Emergency stop
B. Stop
C, rise
31. [Single-choice question] When the crane is running under rated load, after the brake has braking action, under the action of inertia, it will continue to move for a certain distance. This distance is called (). (C)
A. Work schedule
B. Safe itinerary
C. Braking stroke
32. [Single-choice question] After the grab is opened, the non-parallel difference of the mouth should not exceed (). (B)
A, 2 mm
B, 20 mm
C, 3 mm
33. [Single-choice questions] According to the toughness of the steel wire, the steel wire is divided into: (). (B)
A, level 2
B, level 3
C, level 4
34. [Single-choice question] General gesture signal, one-handed natural fist placed on the head, touch the top of the head to indicate: (). (B)
A. Preparation
B. Main hook
C. End of work
35. [Single-choice question] () limit device set to prevent the crane from derailing. (B)
A. Weight
B. Itinerary
C. Moment
36. [Single-choice question] When the crane is running at a speed greater than 120 m/min, the buffer should be (). (C)
A. Rubber buffer
B. Spring buffer
C. Hydraulic buffer
37. [Single-choice question] Generally, the angle between the steel wire ropes for hoisting should not be greater than: (). (B)
A、90°
B、120°
C、150°
38. [Single-choice question] Crane (), hooks are not allowed to hang slings and objects. (B)
A. Before starting work
B. After finishing the work
C. During work
39. [Single choice] The torsion deformation of the hook head of the hook exceeds () should be scrapped. (A)
A、10°
B、12°
C、5°
40. [Single-choice question] The components that convert the mechanical energy of the prime mover into hydraulic energy are: (). (C)
A. Hydraulic motor
B. Hydraulic cylinder
C. Hydraulic pump
41. [Multiple choice questions] The "Special Equipment Safety Law of the People's Republic of China" stipulates that special equipment manufacturers and users should establish and improve special equipment () and (). (AC)
A. Safety responsibility system
B. Post safety management system
C. Energy-saving responsibility system
42. [Multiple choice questions] The following are our country's safe voltage ratings: (). (BCD)
A、48V
B、36V
C、24V
D、12V
43. [Multiple choice questions] Hemp rope generally includes the following types (). (ABCD)
A, Luzon rope
B, white brown rope
C, mixed rope
D, line twine
44. [Multiple choice questions] For the steel wire rope used by the crane, its () should meet the requirements of the operation manual of the crane. (ABD)
A, structure type
B. Specifications
C, stiffness
D. Strength
45. [Multiple-choice questions] When shifting shifts, the driver who succeeds should conduct a no-load operation inspection, especially whether () is safe and reliable. (BC)
A. Cam switch
B. Limit switch
C. Emergency switch
D, travel switch
46. [Multiple choice] When a fire occurs in electrical equipment during crane operation (), put out the fire. (ABD)
A. The power should be cut off immediately
B. Use 1211 fire extinguisher
C. Foam fire extinguisher
D. Use carbon dioxide fire extinguisher
47. [Multiple choice questions] Crane maintenance is divided into: (). (ACD)
A. Daily maintenance
B. Key maintenance
C. Primary maintenance
D. Secondary maintenance
48. [Multiple choice questions] The principle of ensuring safe production is (). (ABC)
A. Regular maintenance of equipment
B. Operate according to standards
C. Clean and orderly working environment
D, skilled operation skills
49. [Multiple choice questions] The main causes of electrical explosion are: (). (ABCD)
A. Electrical failure
B. Insulation aging
C. Poor heat dissipation
D. Improper use
50. [Multiple choice questions] The reasons for the three legs of the car are: (). (AB)
A. The four wheels are not on the same plane
B. Uneven track
C. There is oil stain on the track
The above is the 2021 gantry crane driver exam information and gantry crane driver test questions and answers. Support test questions for accurate portal crane drivers in all regions of the country, support safety qualification certificates, special operation certificates, vocational skills appraisal and other job types of exercises.