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1. [Multiple choice questions] Personal protective measures for elevator repair personnel, there are (). （ ABCD ）
A. Safety shoes
B. Safety helmet
C. Safety glasses
D. Seat belts
2. [Multiple choice questions] Electrical faults are often manifested as (). （ ABC ）
A. Low voltage
B. The wire is broken
C. Grounding is broken
D. High frequency
3. [Multiple choice questions] There are three kinds of brakes for escalators. （ ABD ）
A. Working brake
B. Additional brakes
C. Handbrake
D. Auxiliary brake
4. [Multiple choice questions] Conduct accident inspection and analysis, the purpose is (). （ AB ）
A. Find the cause of the accident
B. Prevent recurrence
C. Pursue responsibility
D. Draw the line of responsibility
5. [Multiple Choice] GB16899-2011 "Safety Code for the Manufacturing and Installation of Escalators and Moving Walks" stipulates that the nominal speed of escalators or moving walks refers to the operating speed of steps, pedals or tapes in the case of () designed and determined by the manufacturer. （ A ）
A. No load
B, half load
C. Fully loaded
D. Rated load
6. [Multiple choice question] TSG5002-2017 "Elevator Maintenance Rules" stipulates that after receiving the report of the trapped person, the maintenance personnel should arrive at the scene in time to implement rescue. For municipalities directly under the Central Government or cities divided into districts, the arrival time shall not exceed () minutes, and in other areas, it shall not exceed 1 hour. （ B ）
A、15
B、30
C、60
D、90
7. [Multiple choice question] TSGZ6001 the "Examination Syllabus (Abbreviation)" stipulates that the "Special Equipment Operator Certificate" shall submit an application for review to the certificate issuing department of the place of work or household registration () months before the expiration of the validity period. （ A ）
A、1
B、6
C、9
D、12
8. [Multiple choice question] "Safety Code for Elevator Manufacturing and Installation" (GB7588-2003) requires the size of the door gap of the passenger elevator, and the movement gap shall not be greater than (). （ B ）
A、3mm
B、6mm
C、8mm
D、10mm
9. [Multiple choice question] "Safety Code for Elevator Manufacturing and Installation" (GB7588-2003) on the height of the elevator car, the net height of the car should not be less than () m. （ B ）
A、1.5m
B、2.0m
C、2.5m
D、3m
10. [Multiple Choice] Alternating current, the number of times that the periodic change is completed in one second, is called the alternating current (). （ D ）
A. Maximum
B, Initial Phase Angle
C. Period
D. Frequency
11. [Multiple Choice] Human body resistance is a factor affecting the severity of electric shock in the human body, and the degree of electric shock is the lightest in the following cases. （ B ）
A. Moist skin
B. Dry skin
C. Broken skin
D. Wear chemical fiber clothes
12. [Multiple choice question] When the operator is working on the working platform at least () meters above the ground, he should wear a safety belt to prevent falling. （ B ）
A、1
B、2
C、3
D、4
13. [Multiple Choice] What determines the oil pressure in the cylinder of the hydraulic elevator in the stopped state? （ D ）
A. Oil pump
B. Pressure valve
C. Safety valve
D. Car gravity
14. [Multiple choice] The dangerous voltage in the event of an electric shock accident is ()V. （ D ）
A、12
B、24
C、36
D、60
15. [Multiple choice question] If the door opening mechanism is directly mechanically connected with the car door with a rigid structure, and the car door leaf is indirectly mechanically connected, the electrical safety contact can not be installed on (). （ A ）
A. Passive door leaf of the car door
B. Passive door leaf of the hall door
C. The active door of the car door
D. It is uncertain
16. [Multiple choice question] If the electrocuted person's heartbeat stops and breathing is still alive, the first aid measures that should be taken are (). （ D ）
A. Get a booster shot
B. Supine chest press
C. Artificial respiration
D. Extrathoracic heart extrusion
17. [Multiple Choice] If a wire is evenly elongated to 2 times of the original length, the resistance value is () times of the original resistance value. （ B ）
A、2
B、4
C、1/2
D、1/4
18. [Multiple choice question] Any potential danger in the work area ___ place eye-catching warning signs. （ B ）
A. Requirements
B. Required
C. In principle, it is allowed
D. In principle, it is required or can
19. [Multiple choice question] The vertical distance between the floor of the bottom end station and the floor of the top end station is called (). （ A ）
A. Elevator lifting height
B. Elevator rated height
C. Elevator design height
D. Elevator running height
20. [Multiple Choice] When operating rotating machinery or maintaining the wire rope of the traction machine, the operator should not wear (). （ B ）
A. Safety helmet
B. Gloves
C. Insulated shoes
D. Goggles
21. [Multiple choice question] When the machinery and equipment of the machine-room-less elevator driven by traction are installed in the hoistway, in addition to installing a stopping device on the car top and the pit, a stopping device should also be installed next to () and easy to operate. （ D ）
A. Working platform
B. Speed limiter
C, floor door
D. Drive the host
22. [Multiple choice question] When a maintenance personnel adjusts the elevator brake with no load, due to improper adjustment, the elevator brake fails, which may cause an elevator () accident. （ C ）
A、坠落
B. Shearing
C. Peaking
D. Squatting
23. [Multiple Choice] The maximum allowable running speed of the hydraulic elevator is () m/s. （ D ）
A、0.63
B、0.8
C、0.85
D、1
24. [Multiple choice question] The main power supply of the elevator trips, which may lead to (). （ A ）
A. The elevator stops running
B. The door impact is loud
C. The door leaf is shaky or stuck
D. No express trains
25. [Multiple choice question] The brakes used in elevators are generally powered by (). （ A ）
A. DC
B. AC and DC
C. Communication
D. Signal control
26. [Multiple choice question] In the elevator model, what does the letter "Y" mean to express the drag mode? （ A ）
A. Hydraulic elevator
B. There is only one stop
C. Pharmacy elevator
D. Traction elevator
27. [Multiple choice question] The central angle of the elevator traction wire rope in contact with the traction wheel is called (). （ A ）
A. Wrapping corners
B. Winding angle
C. Contact angle
D. Traction angle
28. [Multiple choice question] The traction wire rope of the elevator is generally a circular strand-like structure, which is mainly composed of (). （ D ）
A. Steel wire
B. Rope strands
C. Rope core
D. All options
29. [Multiple choice question] The safety inspection of mobile electrical appliances includes (). （ C ）
A. Whether it is effectively grounded
B. Whether the shell and plug are damaged
C. All options
D. Whether the wire is damaged
30. [Multiple choice question] Before the maintenance personnel enter the elevator car roof, they should first (). （ A ）
A. Confirm the parking position of the car
B. Press the emergency stop switch on the top of the car
C. Verify the validity of the layer door lock
D. Put the car top maintenance box to the "maintenance" position
31. [Multiple Choice] The main factors of electrocution and injury are (). （ D ）
A. Voltage
B. Lightning strikes
C. Resistance
D. Current
32. [Multiple choice question] () can make the elevator in the slow gear of maintenance, and play this gear at the control box on the top of the car, and the elevator can cancel all the operation instructions in the machine room and the car, and can only drive the slow train on the top of the car. （ A ）
A. Car roof maintenance switch
B. Emergency stop switch
C. Overload protection device
D. DC motor weak field protection
33. [True or False] The higher the yield strength, the greater the tensile strength of the metal material. （ √ ）
34. [True or False] GB/T31821-2015 "Technical Conditions for the Scrapping of Main Components of Elevators" specifies that if the motor has a rupture of the shell or base that affects the safety, it is deemed to have reached the technical conditions for scrapping. （ √ ）
35. [True or False] Q235 is low carbon steel and can be welded. （ √ ）
36. [True or False] TSGT7005-2012 "Inspection Regulations (Abbreviation) - Escalators and Moving Walks" stipulates that escalators or moving walks should be equipped with fault-break phase protection devices; If the operation is not related to the phase sequence, it can not be installed. （ √ ）
37. [True or False] "Thickener" is put in the "base oil" and stirred thoroughly to make it evenly dispersed in the base oil to form a skeleton. In this way, the base oil, which was originally in a liquid state, becomes a semi-solid grease. （ √ ）
38. [True or False] The greater the "penetration degree", the harder the lubrication "safety production simulation test" grease will be. （ × ）
39. [True or False] "Additional brake" (emergency brake) can prevent the elevator from slipping down when the drive chain is broken, so that passengers will be injured. （ √ ）
40. [True or False] The "Special Equipment Safety Law" stipulates that the special emergency plan for special equipment accidents shall be formulated by the local government, implemented by the user, and shall be regularly drilled in accordance with the requirements. （ × ）
41. [True or False] The "Special Equipment Safety Law" stipulates that after the special equipment has been registered for use, it is allowed to be used even if it has not been regularly inspected or the inspection is unqualified. （ × ）
42. [True or False] Before measuring the multimeter, you should first check whether the position of the meter pen is correct. The red pen is connected to the "+" terminal post and the black watch pen is connected to the "-" binding post. （ √ ）
43. [True or False] For the sake of safety and energy saving, the installation of compensation ropes, chains, and cables should be carried out as soon as possible. （ √ ）
44. [True or False] When the hoistway, car roof or pit is operated, no other operation shall be carried out above it, but the elevator operation can be carried out at the same time in the machine room. （ × ）
45. [True or False] Safety helmets must be worn during construction in the hoistway, and safety belts should be fastened when working at height. （ √ ）
46. [True or False] AC voltage and speed regulation (ACVV) elevator is to achieve speed regulation by changing the stator power supply voltage of the three-phase asynchronous motor. （ √ ）
47. [True or False] After the wire is connected, the smaller the distance between the connector and the insulating layer, the better. （ √ ）
48. [True or False] The height of the maintenance door for the maintenance person to enter and exit the hoistway shall not be less than one meter four. （ √ ）
49. [True or False] According to the requirements of TSGT7006-2012 "Inspection Regulations (Abbreviation) - Sundries Elevator", the speed limiter of the sundbrillary elevator should be checked every 2 years. （ × ）
50. [True or False] Megohmmeter is used to measure the insulation resistance of transformers, motors, electrical appliances, cables, etc. （ √ ）
51. [True or False] Brake, in the state of weak braking force, the car may not be able to brake when it is full load and goes down in a low position, or when it goes up in a high position with no load. （ √ ）
52. [True or False] The sill of the hall door is installed, and the accuracy requirement is 2/1000. The level, without a reading mark, should not be used. （ √ ）
53. [True or False] Only when all the hall and car doors are closed, the electric lock contacts are closed, and the door lock protection circuit is connected, can the elevator start running. （ √ ）
54. [True or False] Only considering that the weight of the car and the counterweight is the same, it can save energy. （ × ）
55. [True or False] You can take the escalator barefoot. （ × ）
56. [True or False] In the same power supply system, it is not allowed for one device to be protected to zero, and another device is protected and grounded in the "safe production mock test". （ √ ）
57. [True or False] In a circuit, when the two ends of a part of the circuit are connected with wires with negligible resistance, this part of the circuit is said to be short-circuited, and the short-circuit is characterized by zero voltage at the short-circuit point. （ √ ）
58. [True or False] When the overload protection fails, there is still a risk of the car sinking to the bottom when the overload protection is greatly overloaded (√)
59. [True or False] Base oil is the main body of grease, accounting for 70~80% of the weight of grease. （ √ ）
60. [True or False] If a hall door lock is loose and displaced, the car may be wiped by the door knife when passing here, causing a sudden stop. （ √ ）
61. [True or False] If an obstacle is found that will cause personal injury, corresponding preventive measures should be taken. （ √ ）
62. [True or False] For parallel or group-controlled elevators, the linkage relationship between other elevators and this elevator must be taken into account. When entering the shaft, car roof or pit operation, it must be overhauled before starting the operation. （ √ ）
63. [True or False] The guide rail gauge is a special measuring tool used to adjust the gap of the track joint. （ × ）
64. [True or False] The traction machine with worm gear reducer has the characteristics of stable operation, reverse drive self-locking, low noise and efficient deceleration. （ √ ）
65. [True or False] Parallel control elevator is to connect two to three elevators with signal control functions and the call signal of the landing station in parallel. （ × ）
66. [True or False] The depth of the pit refers to the vertical distance between the ground of the lower station and the bottom of the pit. （ √ ）
67. [True or False] When the step collapses, the step collapse parking protection device can stop the operation of the escalator or moving walk. （ √ ）
68. [True or False] When electricity. The safety production mock test is a one-point pass. When the ladder rushes to the top, the guide shoe should not go beyond the guide rail. （ √ ）
69. [True or False] Many freight elevators do not have car weighing and load limiting devices. The user should be prompted to prevent the elevator from overloading. （ √ ）
70. [True or False] The emergency stop switch is a protective device used to stop the escalator immediately in an emergency. （ √ ）
71. [True or False] The so-called potentiometric method is to use the corresponding voltage block of the multimeter to measure whether the potential of each point in the circuit is normal to judge the fault point. （ √ ）
72. [True or False] The entrance and exit of the escalator or moving walk, the ground at the comb plate, and the illumination is at least 50Lx; At least 15Lx outdoors. （ √ ）
73. [True or False] The elevator shaft of the traction drive shall be dedicated to the elevator, and no equipment, cables, etc. unrelated to the elevator shall be installed in the shaft. However, it is allowed to install heating equipment that meets the installation requirements of GB7588-2003 in the shaft. （ √ ）
74. [True or False] According to the GB16899-2011 "Safety Code for the Manufacturing and Installation of Escalators and Moving Walks", the distance between the two emergency stop switches of the escalator should not be greater than 30m. （ √ ）
75. [True or False] According to the provisions of TSG08-2017 "Rules for the Management of the Use of Special Equipment", if the user uses more than 20 elevators (inclusive), it shall be equipped with a full-time safety administrator and obtain the corresponding qualification certificate. （ √ ）
76. [True or False] The inspection agency shall carry out regular inspection on the basis of the self-inspection of the maintenance unit. （ √ ）
77. [True or False] The permanent magnet synchronous gearless traction machine needs to change the lubricating oil regularly to prolong its service life. （ × ）
78. [True or False] The measurement of the stopping distance between the escalator and the moving walk should start from the time the mechanical braking device acts. （ × ）
79. [True or False] The unit of temperature rise is "°C", which is the temperature value measured during operation. （ × ）
80. [True or False] Vernier caliper reading, you should read the sub-ruler first and then read the main ruler. （ × ）
81. [True or False] The fuse is a commonly used low-voltage protection electrical appliance. It is used as an overload and short circuit protection device (√)
82. [True or False] When the elevator is fully loaded and goes straight, the elevator only responds to the instructions outside the car. （ × ）
83. [True or False] When the overload protection device of the elevator is in action, the automatic door driven by power is completely opened, and the elevator can be re-leveled to facilitate the exit of passengers who enter the car later. （ × ）
84. [True or False] The wire rope guide and door leaf guidance of the elevator are as important as the car track. They all need to be upright, smooth, firm and smooth. （ √ ）
85. [True or False] The electrical wiring should be correct, the connection should be reliable, and the signs should be clear. （ √ ）
86. [True or False] Direct electric shock accident refers to the electric shock accident caused by the human body directly touching the electrical equipment and causing the metal shell to be electrified due to abnormal conditions. （ √ ）
87. [True or False] Phosphor bronze, which is not elastic and too soft, can only be made into copper rivets. （ × ）
88. [True or False] After the maintenance of the elevator in the "Safety Production Mock Test" of the maintenance policy, a maintenance record should be kept. （ √ ）
89. [True or False] The moving sidewalk is mainly composed of trusses, single-loop rails, drive systems, ladder systems, wall guards and handrails, and security systems. （ √ ）
90. [True or False] The middle drive device of the escalator is generally driven by a chain measuring rack. （ √ ）
91. [True or False] Screw transmission, high transmission efficiency. （ × ）
92. [True or False] The balance between the car and the counterweight is related to the counterweight counterweight; related to compensation ropes; Nothing to do with the absence of overload protection. （ × ）
93. [True or False] The car should be cleaned frequently and washed with a water gun. （ × ）
94. [True or False] The car door opening restriction device can make the elevator parked outside the unlocking area invalid in the car door opening instruction. （ √ ）
95. [True or False] The maintenance of escalators must be carried out in strict accordance with national norms and relevant safety regulations. （ √ ）
96. [True or False] Generally, the human body resistance of women is greater than that of men. （ × ）
97. [True or False] Chain drive and belt drive are very similar in form. However, when the belt drive encounters too much resistance, it will slip and give way, so that the whole machine is protected. （ √ ）
98. [True or False] Chain drive and belt drive are very similar in form. But the chain drive will not slip, and the gear ratio is accurate. （ √ ）
99. [True or False] The average transmission ratio of the chain drive is accurate, and the overload capacity is larger than that of the belt drive. （ √ ）
100. [True or False] The debugging of the speed limiter is an important part of determining whether the elevator can operate normally. （ √ ）
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