Source of question bank: Safety production mock examination, WeChat public account mini program
2021 Crane Driver (Only Bridge Crane) Exam Question Bank and Crane Driver (Only Bridge Crane) Exam Data, including Answers and Analysis of Crane Driver (Only Bridge Crane) Exam Question Bank and Crane Driver (Only Bridge Crane) Exam Data Practice . Combining the latest syllabus of the National Crane Driver (Only Bridge Crane) exam and the summary of the real questions of the crane driver (Only Bridge Crane) exam from the safety production simulation test, Yidiantong Official Account, will help the crane driver (Only Bridge Crane) certificate exam. Exercise.
1. [Judgement Questions] There are three types of gesture signals: general gesture signals, special gesture signals and marine gesture signals. (×)
2. [True and True] () Both ends of the bridge frame of the bridge crane are respectively connected to an end beam, and a cart operating mechanism is installed on the end beam. (√)
3. [True/True] () The red in the safety color means: prompt, passage, safety sign. (×)
4. [True/Judgement] Inclined hanging and oblique pulling of heavy objects will increase the work load, and the heavy objects will swing, which will have an adverse effect on the wire rope and pulleys, and may also cause accidents. (√)
5. [True or True] When winding the wire rope on the rotating drum, use hand or foot to guide to avoid overlapping of the wire rope. (×)
6. [True and True] () Every working day should try to observe all visible parts of any steel wire rope (√)
7. [True/Trump] When the object to be turned over is tilted by the moment of gravity, the hook should be dropped at the slowest descending speed for stability. (×)
8. [Judgement Question] Once a fire occurs, evacuate the fire seedlings and materials immediately, and evacuate the flammable and explosive materials first. (√)
9. [Judgement Questions] () The "Special Equipment Safety Law of the People's Republic of China" stipulates that special equipment safety management personnel, inspection personnel and operators shall strictly implement safety technical specifications and management systems to ensure the safety of special equipment. (√)
10. [True and True] () When the command signal is unclear and the sound signal is unclear, lifting operations are not allowed. (√)
11. [True and True] The rated lifting capacity of the grab crane includes the grab weight. (√)
12. [Judgement Questions] () The "Special Equipment Safety Law of the People's Republic of China" stipulates that the department responsible for the safety supervision and management of special equipment should deal with schools, kindergartens, hospitals, stations, passenger terminals, shopping malls, stadiums, exhibition halls, parks, etc. Special equipment in public gathering places shall be subject to key safety supervision and inspection. (√)
13. [Judgement Questions] The "Special Equipment Safety Law of the People's Republic of China" stipulates that special equipment users shall conduct regular maintenance and regular self-inspection of the special equipment they use, and make records. () (√)
14. [True and True] crane drivers must strictly abide by the "ten no cranes" regulations. (√)
15. [True and True] () The organic core of steel wire rope is usually made of cotton and hemp soaked in lubricating oil. The organic core is flammable and cannot be used in high temperature applications. (√)
16. [Judgment] The crane lighting and signal power lines should be connected to the inlet end of the power main switch. When the power switch is powered off, the normal power supply can still be maintained. (√)
17. [Judgement Questions] According to the "Regulations for the Supervision and Inspection of Major Repairs for the Installation and Renovation of Lifting Machinery", the lifting devices attached to the lifting machinery and the lifting equipment used for installation and repair, etc., are attached to the whole machine as an accessory device The inspection items can be determined according to actual conditions. (√)
18. [Judgement] The tight (should) emergency stop switch should be able to cut off the main control power supply of the hoisting machinery. The switch is a non-automatic reset type and is installed in a place that is convenient for the driver to operate. (×)
19. [True and True] () When using a ladder to ascend, the ladder must have no lack of layers, and the feet of the ladder must be wrapped and non-slip. The "herringbone ladder" must be hung on the hook or in the middle, and must be supervised by someone. (√)
20. [True and True] () The main safety problem of working at height is falling, which is divided into falling objects and falling objects. (×)
21. [True and True] Overcurrent protection is when the circuit is short or the motor is seriously overloaded, the main circuit is manually disconnected from the power supply. (×)
22. [True and True] () Hoisting machinery, in a broad sense, refers to electromechanical equipment used for vertical lifting or vertical lifting and horizontal movement of heavy objects. (√)
23. [True/True] The shackle can be subjected to lateral force. (×)
24. [Single-choice question] After the fire rescue is over, follow the requirements of "() Let go" to do a good job in the aftermath of the accident. (B)
A, three no
B. Four no
C, five no
25. [Single-choice question] The meaning of the warning signs is to remind people to pay attention to the surrounding environment to avoid possible dangerous graphic signs. The basic form is () frame. (B)
A, round
B, equilateral triangle
C, square
26. [Single choice] Directional valve is a kind of hydraulic system (). (B)
A. Power components
B. Control components
C, actuator
27. [Single choice] The special electromagnet for sucking and transporting steel plate and section steel should be equipped with a sound and light alarm device when the voltage is lower than the rated voltage () of the electromagnet. (A)
A、85%
B、100%
C、110%
28. [Multiple Choice Questions] 
(A)
A. No safety measures are required for strong winds above level 6
B. Do not hang under high-voltage lines
C. Sharp edges are not protected without hanging
29. [Single-choice questions] The "three good" in lifting operations refer to: good management, good use and (). (C)
A. Hide well
B. Put it away
C. Fix it
30. [Single-choice question] The diameter of the steel wire rope used for lifting is reduced by () and shall not be used. (A)
A、7%
B、5％
C、3%
31. [Single-choice question] The center of gravity is the point of action of the gravity () of each part of the object. (B)
A. Moment
B. Heli
C. Component
D. Vertical force
32. [Single-choice questions] The fit in which the lower deviation of the hole is greater than the upper deviation of the shaft is called () fit. (C)
A. Interference
B. Transition
C. Gap
D, ordinary
33. [Single-choice questions] Crane drivers must follow () when lifting operations. (C)
A, business leaders
B. Team leader
C. Lifting command
34. [Single-choice questions] When lifting and working at high places need to work up and down, special () or other isolation measures must be set. (B)
A. Warning signs
B. Shelter
C. Red line alert
35. [Single-choice questions] The automatic control electrical appliance that uses electromagnetic principles or working principles to delay the closing or opening of contacts is () relay. (A)
A. Time
B. Overcurrent
C, heat
36. [Single-choice questions] To be tough in complex situations, requires familiarity with safety technology, and has (). (C)
A. Resilience
B, troubleshooting ability
C. Resilience and troubleshooting capabilities
37. [Single-choice question] Dangerous goods that can react with water (such as calcium carbide, etc.) cannot be loaded or unloaded. (B)
A, sunny
B. Rainy day
C. Windy day
38. [Single-choice question] The "Special Equipment Safety Law of the People's Republic of China" stipulates that special equipment users shall use special equipment that has obtained a license to produce and has passed (). (B)
A. Market recognition
B. Qualified inspection
C. Technical appraisal
39. [Single-choice questions] Those who fail the re-examination should take the exam again. Those who fail to apply for re-examination or fail the examination within the time limit shall be granted () in their "Special Equipment Operator Certificate". (B)
A. Re-examination
B. Logout
C. Reapply
40. [Single-choice question] Knowing that the radius of the cylindrical equipment is r, the height is h, and the density is γ, the calculation formula for the quality of the equipment is (). (B)
A 、 πrhγ
B、πr2hγ
C、πr3hγ
41. [Single choice] Use rope clamps to connect the steel wire ropes, and the rope clamps are fastened to the flattened steel wire ropes: (). (B)
A、1／2
B、1／3
C、1／5
42. [Multiple choice questions] The operator must have a comprehensive understanding of () and the weight and distribution of the components before operation. (ABCD)
A. On-site working environment
B. Driving road
C. Overhead wire
D. Building
43. [Multiple-choice questions] Which of the following working environments should be used for construction, and no work should be done without special supervision: (). (ABCD)
A, flammable
B. Explosive
C. Upper part of toxic gas plant
D. The top of the tower
44. [Multiple choice questions] The accident: In a steel structure factory, worker Zhou used a bridge crane with a rated load of 50 tons to lift a 1.5-ton steel plate, and when the goods were lowered, they were tied up with steel wire ropes. The hook fell off and the steel plate fell aside, pressing down the worker who was grinding, and died due to ineffective rescue. Accident investigation: The hook has no anti-decoupling device, and the force on the hook has worn out, and the amount of wear is greater than 15%. The accident crane user unit arbitrarily moved and modified, and changed the crane span without authorization. The crane was extended from 16.5 meters to 18 meters. The relevant procedures have not been inspected, the equipment has defects such as the failure of the operation limit device, and the operator Zhou has no crane operator certificate. Analysis of the cause of the accident () (ACD)
A. The hook has no anti-decoupling device
B. Overload use
C. The safety management of the unit is chaotic, and the crane is moved and modified without authorization
D. Operation errors caused by undocumented personnel operating the crane
45. [Multiple choice questions] Due to improper use and storage, the (), surface hardening, loose twist, etc. of the wire rope may be caused. (ABCD)
A. Kink
B. Deformation
C, rust
D, annealing
46. [Multiple Choice Questions] The parties () etc., which make it impossible to determine the responsibility for the accident, shall bear full responsibility. (ABC)
A. Forge or deliberately destroy the accident scene
B. Destruction of evidence
C. Failure to report the accident in time
47. [Multiple choice] The audio signal used by the crane driver is (). (ABC)
A. Understand
B. Repeat
C. Note
D. Preparation
48. [Multiple-choice questions] The "ten no-hanging" requirements for lifting operations are listed below which are correct: (). (ABC)
A. The command signal is unknown or the command is not suspended
B. The weight of the object is unclear or overloaded without hanging
C. Do not hang oblique objects
D. Do not hang dangerous goods
49. [Multiple choice questions] The basic principles of fire fighting are (). (ABCD)
A. Cooling method
B. Asphyxiation method
C, isolation method
D. Chemical suppression method
50. [Multiple-choice questions] According to the different working environment, working conditions, etc., high-altitude operations are divided into: (). (AC)
A. General high-altitude operations
B. Special high altitude operations
C. Special high altitude operations
D. Ordinary high altitude operations
The above is the 2021 crane driver (bridge crane only) exam question bank and crane driver (bridge crane only) exam data. Support the examination questions for accurate crane drivers (only bridge cranes) in all regions of the country, and support the exercises of the safety qualification certificate, special operation certificate, vocational skill appraisal and other work types.