Source of question bank: Safety production mock exam, WeChat public account mini program
The 2021 tower crane driver test paper and tower crane driver test questions and answers, including the tower crane driver test paper answers and analysis, and tower crane driver test questions and answer exercises. Combining the latest syllabus of the national tower crane driver exam and the summary of the real questions of the tower crane driver exam from the safety production simulation test, Yidiantong public number, will help tower crane drivers practice before the exam.
1. [True/True] When hitting a reverse car, the motor will produce a strong mechanical impact and even damage accidents, so it is not allowed under normal circumstances. (√)
2. [Judgment Question] If a certified operator operates in violation of regulations or causes a special equipment accident, the "Special Equipment Operator Certificate" shall be cancelled. (√)
3. [True and True] After the operation, the boom should be turned downwind and the hook should be placed on the ground. (×)
4. [Judgement Questions] Special equipment operators who work across regions can apply to the license issuing department where they work for review. (√)
5. [Judgement] The wire rope should be kept in good lubrication state, and the lubricant used should meet the requirements of the rope and does not affect the visual inspection. When lubricating, pay special attention to the invisible and inaccessible parts, such as the wire rope at the balance pulley. (√)
6. [Judgement Questions] The special equipment referred to in the "Special Equipment Safety Law of the People's Republic of China" that came into effect on January 1, 2014 refers to boilers and pressure vessels (including gas cylinders) that involve life safety and are highly dangerous. , Pressure pipes, elevators, hoisting machinery, passenger ropeways and large-scale amusement facilities. (×)
7. [True and True] The walking limiter is set to ensure the safety of lifting. (×)
8. [True/True Question] Destruction of electrical insulation and poor grounding can cause electric shock and casualties. (√)
9. [Judgment] Special equipment operators must obey management and have no right to refuse to force risky operations. (×)
10. [Judgement Question] The hemp core of the steel wire rope is burnt out, and the steel wire is blue and brittle after annealing. It is particularly prone to accidents of broken rope and falling objects under the action of impact load. (√)
11. [True/Treatment] The metal casting pulley groove wall thickness wears up to 20% of the original wall thickness should be scrapped. (√)
12. [Judgement Questions] Personnel engaged in special equipment operations shall be assessed by the quality supervision and assessment department, and obtain the "Special Equipment Operator Certificate" after passing the test before they can engage in corresponding operations or management work. (√)
13. [Single choice] The rolling bearing in the pulley on the crane generally uses () grease. (C)
A. Gear oil
B. Mechanical oil
C. Grease
14. [Single-choice question] The wire ropes used on cranes are generally (). (C)
A. Steel wire core
B. Asbestos core
C, cotton, hemp core
15. [Single-choice question] When hoisting objects for the first time in each class, lift the objects off the ground ()m, and then lower them to check the reliability of the lifting brake. (D)
A、2.0
B、1.5
C、1.0
D、0.5
16. [Single-choice question] In the event of () casualties, the special equipment safety management department of the city divided into districts will organize the accident investigation team to investigate. (A)
A. General accidents
B. Serious accident
C. Major accident
17. [Single-choice question] When certain parameters reach a predetermined value, the electrical appliance that can automatically act, so that the circuit changes is called (). (A)
A. Relay
B. Contactor
C. Fuse
18. [Single-choice question] If the brake of the lifting mechanism suddenly fails due to the electrical aspect, it should be immediately (). (C)
A. Send an emergency signal
B. Pull down the knife power switch
C. Pull down the emergency switch
19. [Single-choice question] The control of the lifting height in crane lifting sometimes needs to be based on (). (B)
A, height limit
B. Driver's visual inspection ability
C. Lifting speed
20. [Single-choice questions] If special equipment does not meet (), the unit using special equipment shall take corresponding measures to make corrections. (C)
A. Safety indicators
B. Safe production
C. Energy efficiency indicators
D. Safety structure
21. [Single-choice question] When the driver uses a crane to lift or lift people and objects together, he should () operate. (B)
A. Allow
B. Prohibited
C. It can be approved by the leader
22. [Single-choice question] When the driver is in the process of operating, he suddenly sees the operation of an emergency signal sent by anyone. 1. Pull down the knife switch of the protective box. 2. The driver should stop working immediately if anyone sends an emergency signal (not necessarily standard). 3. Put the handle to the zero position or pull down the emergency switch. What is the processing sequence? (B)
A、3—2—1
B、2—3—1
C、1—2—3
23. [Single-choice question] The height of hoisting objects should generally be higher than the highest obstacle () meters. (A)
A、0.5
B、1
C、1.5
24. [Single-choice question] How to deal with the sudden failure of the control mechanism or the sudden break of the control lever during crane operation. 1. Pull down the protective box knife switch to cut off the power supply for maintenance. 2. If the control mechanism suddenly fails, the driver should choose to pull down the emergency switch immediately. What is the processing sequence? (B)
A、1—2
B、2—1
25. [Single-choice question] The operating limit position limiter is composed of a safety ruler and (). (B)
A. Emergency switch
B. Limit switch
C. Knife switch
26. [Single-choice question] When the crane is operating, the boom should be turned to (). (B)
A. Top wind direction
B. Downwind
C. Windshield direction
27. [Single-choice question] The thickness of the rim of the brake wheel of the lifting mechanism brake is worn out () and should be replaced. (B)
A、25％
B、40％
C、50％
28. [Single choice] The protective cover is a very important safety accessory on the crane, it can effectively prevent the operator and maintenance personnel from being (). (C)
A, damage
B. Scratches
C. Get involved
29. [Single-choice questions] Crawler cranes with a rated lifting capacity greater than () must be equipped with a level. (C)
A、30T
B、40T
C、50T
30. [Single-choice questions] When the ends of the wire rope are connected by rope clamps, the spacing should not be less than the diameter of the wire rope (). (C)
A, 4 times
B, 5 times
C, 6 times
31. [Single-choice question] The boom crane is not allowed to exceed the specified () when luffing, and no hoisting is allowed. (B)
A. Height
B. Inclination
C, distance
D. Speed
32. [Single-choice question] It is strictly forbidden for the electromagnetic chuck to pass over people and equipment. It is required that the operating range is within a radius of () meters and no people are allowed to stand. (A)
A、5
B、6
C、7
33. [Single-choice question] If the ends of the steel wire rope are fixedly connected with a rope clamp, the rope clamp pressure plate should be on the steel rope: (). (A)
A. One side of the long rope
B. Short rope side
C, either side
34. [Single-choice question] Generally, the angle between steel wire ropes for hoisting should not be greater than: (). (B)
A、90°
B、120°
C、150°
35. [Single-choice question] Any operation at a height where it is possible to fall on the reference plane of the fall height ()m is called high altitude operation. (A)
A, greater than or equal to 2
B. Greater than or equal to 3
C, greater than or equal to 4
36. [Single choice] The torsional deformation of the hook head of the hook exceeds () should be scrapped. (A)
A、10°
B、12°
C、5°
37. [Single-choice question] When the amount of wear or corrosion on the surface of the wire rope reaches ()%, it should be scrapped. (A)
A、40
B、20
C、10
38. [Single-choice question] When the crane is operating under or on both sides of a high-voltage line with a transmission line voltage of 10KV, the minimum distance between the crane and the route is (). (C)
A, 1.5 meters
B, 2.5 meters
C, 3 meters
D, 5 meters
39. [Single-choice question] When a charged body is grounded and a current flows into the ground, the voltage drop generated by the current in the soil around the grounding point. The voltage appearing between the feet of a person around the grounding point is called (). (A)
A. Step voltage
B. Safety voltage
C, zero voltage
40. [Single-choice questions] () has a large elongation and is elastic when used, which is good for absorbing impact loads. (C)
A. Wire rope
B, hemp rope
C, chemical fiber rope
41. [Single choice] The amplitude in the crane parameters refers to: (). (C)
A. The distance between the center lines of the trolley track
B. The horizontal distance between the axis of the crane running track
C. The horizontal distance between the vertical centerline of the spreader and the centerline of rotation
42. [Single choice] The "Special Equipment Safety Law of the People's Republic of China" was formulated to strengthen the safety of special equipment, prevent special equipment (), protect the safety of people and property, and promote economic and social development. (C)
A. Production safety accident
B. Major accident
C. Accident
43. [Multiple choice questions] The specific date for the adoption and implementation of the "Safety Production Law of the People's Republic of China" is (). (AC)
A. Adopted on June 29, 2002
B. Adopted on June 29, 2001
C. Implemented on November 1, 2002
D. Implemented on October 1, 2002
44. [Multi-choice questions] The accident: After a worker in a development zone, Mr. Wu, prepared the sand box to close the mold. During the lifting and reversal process, the chain on one side of the sand box suddenly slipped, and the other side tilted directly against Wu Certain body was rescued and sent to a doctor and died. Accident investigation: The safety device of the equipment is effective, and it is used within the safety inspection period. The reversal of the sand box hooks is performed by Wu, without external interference. Analysis of the cause of the accident: () (ACD)
A. The installation of the lifting chain is not firm
B. External force hits the sand box
C. Does not have the skills to operate safely
D. No knowledge of labor protection
45. [Multi-choice questions] Brief incident: In the concrete yard of a company, the steel wire rope suddenly broke when the hopper hoisted by an electric hoist gantry crane was moving, causing the hopper to fall and tip over, and workers who were working nearby Overwhelming to death. Accident investigation: It belongs to the transfer equipment and has not been registered, and the operator operates without a license. The rope guide is missing on the hoist drum, there are obvious new collision marks at the bottom of the shell, the hook assembly falls off, and there are traces of people hitting the bottom of the hopper. Analysis of the cause of the accident: () (ABCD)
A. The crane has been used without inspection, without registration, and defective
B. Missing rope guide
C. The operator does not have a license to operate, and does not have the basic common sense of operation
D. The hook lifting limit device loses its limit function
46. [Multiple-choice questions] Those that meet the requirements of "Ten No Lifting" in lifting operations are: (). (BCD)
A. The worker did not wear a helmet and did not hang
B. The workpiece is buried in the ground without hanging
C. The workpiece is tied up, and the hanging is not firm.
D. The safety device of the hoisting machinery fails to lift
47. [Multi-choice questions] Brief course of the accident: In the material preparation workshop of a company, an electrician was climbing from the workshop format steel frame to the crane overhaul platform and was squeezed by the running crane in the steel frame column and crane wheel protection suite. And the fading ground died. Accident investigation: During the validity period of the inspection, the crane had a special repaired passage ladder against the wall, and the crane had no defects related to the accident. Analysis of the cause of the accident: (ACD)
A. Electrician violates operating regulations
B. No access for maintenance personnel
C. No on-site safety alert and safety supervision
D. The safety management system is not strict and the safety education is not deep
48. [Multiple choice] Crane repairs are divided into several types: (). (BCD)
A. Special repair
B, minor repairs
C, medium repair
D, overhaul
49. [Multiple choice questions] The reasons for the rapid wear of the wire rope are: (). (BCD)
A. Overload use
B. There is dirt and lack of lubrication
C. The diameter of pulley or roll is too small
D. The rope groove size does not match the rope diameter
50. [Multiple Choice Questions] The composition of the travel limiter is: (). (AD)
A. Safety ruler
B. Screw
C. Reel gear
D. Limit switch
The above are the 2021 tower crane driver test papers and the tower crane driver test questions and answers. Support test questions for accurate tower crane drivers in all regions of the country, support safety qualification certificates, special operation certificates, vocational skills appraisal and other job types of exercises.