Question bank source: Production Safety Simulation Examination Yitong Official Account Mini Program
2022T Elevator Repair Examination Practice Questions Department T Elevator Repair Job Certificate Question New Version Examination Bank! The 2022 T Elevator Repair Examination questions and answers are based on the T Elevator Repair Examination outline. T Elevator Repair Theory Question Bank can practice smart examination room based on the production safety simulation test at any time.
1. [Multiple choice question] TSGT7005-2012 "Inspection Regulations (abbreviated) - Escalator and Automatic Sidewalk" stipulates: Escalator or automatic sidewalk installation, use and maintenance instructions should include () operating instructions. (ABCD)
A, install
B, use
C, daily maintenance
D, emergency rescue
2, [Multiple choice question] The two most important parts of the transformer are (). (AB)
A, core
B, winding
C, shell
D, terminal
3, [Multiple choice question] When troubleshooting elevator failure, if the door lock circuit must be shorted, (). (ABC)
A, the elevator is in the maintenance file
B, the cooperation personnel are informed
C, the short wiring is removed after maintenance and the operation is resumed
D, the normal operation state is in
4, [Multiple choice question] The cone sleeve of the traction rope termination device is connected to the traction rope, and there is (). (CD)
A, rope clamping type
B, interstitial plug-in type
C, self-locking wedge sleeve type
D, Pasteur alloy casting type
5, [Multiple choice question] The function of fire fighting return base station is generally included (). (ABCD)
A, eliminate internal and external commands and register
B, stop the station nearby and return to the base station without opening the door when the uplink is uplink. Return to the base station directly when the downlink is downlink. Close the door immediately while the door is leaving. Return to the base station
6. [Multiple choice question] Electronic amplifier has (). (ABC)
A, current amplifier
B, voltage amplifier
C, power amplifier
D, resistance amplifier
7, [Multiple choice question] Electrical failures are often manifested as (). (ABC)
A, low voltage
B, wire break
C, ground break
D, high frequency
8, [Multiple choice question] The damage caused by current to the human body is (). (AB)
A, electric shock
B, electric damage
C, impact
D, clamping
9, [Multiple choice question] The brakes of the escalator, including (). (ABC)
A, working brake
B, auxiliary brake
C, emergency brake (additional brake)
D, gear brake
10, [Multiple choice question] The lifting height of the escalator is generally divided into (). (ABC)
A, large height
B, medium height
C, small height
D, no height
11, [Multiple choice question] The lighting circuit of the escalator can be divided into ().(ABCD)
A, cabin (room) lighting
B, handrail lighting
C, skirt lighting
D, comb tooth lighting
12, [Multiple choice question] Escalator, features () (ABCD )
A, high conveying efficiency
B,
C, parking status can be used as stairs
D, elevators have horizontal sections, and have a certain height
13, [Single choice question] TSGT7001-2009 "Elevator Supervision and Inspection and Periodic Inspection Rules - Traction and Forced Drive Elevator" stipulates: How do the reporting units for supervision and inspection stipulate? (B)
A, user unit
B, construction unit
C, supervision agency
D, inspection agency
14, [Single choice question] " Special Equipment Safety Law of the People's Republic of China " stipulates: The production of special equipment includes design, manufacturing, installation, (), and repair. (C)
A, maintenance
B, maintenance
C, transformation
D, operating
15, [Single choice question] " Special Equipment Safety Law " stipulates that during the rental period, the obligations for use, management, maintenance and maintenance of special equipment shall be borne by (), unless otherwise provided by law or agreed by the parties. (B)
A, user unit
B, rental unit
C, property company
D, rental unit
16, [Single choice question] It is not a safe voltage, it is () V. (D)
A, 12
B, 24
C, 36
D, 48
17, [Single choice question] Several resistors of different values are connected in series, and the current magnitude relationship passing on each resistor is (). (C)
A, high current with a large resistance value
B, low resistance value
C, equal everywhere
D, unable to determine
18, [Single choice question] Using (), you can judge the lighting effect of elevator room lamps. (B)
A, sound level meter
B, illuminance meter
C, tachometer
D, multimeter meter
19, [Single choice question] The cable under the hook is tied to a 1-ton weight object. The smaller the angle between the forks, the smaller the load on the cable. (A)
A, correct
B, error
20, [Single choice question] In the main circuit of a dual-speed elevator, the resistance and reactance are inserted in series, which can make the motor (). (C)
A, increase the start current
B, start acceleration
C, excessive change speed becomes smooth
D, increase power
21, [Single choice question] There is a hemp rope in the compensation chain of the elevator, and its function is mainly (). (B)
A, strengthen the strength of compensation chain
B, prevent the chain ring from hitting directly, making a sound
C, facilitate the installation and fixation of compensation chain
D, all options
22, [Single choice question] The backhoe mainly excavates the earthwork below the shutdown surface, the maximum () and maximum excavation radius are its main working sizes. (C)
A, mining width
B, mining height
C, mining depth
D, unload height
23, [Single choice question] The running direction of the handrail belt should be with the steps and pedal direction (). (A)
A, same
B, opposite
C, different directions and speeds
D, opposite directions and speeds
24, [Single choice question] The protective device in the traction drive elevator to prevent people from falling and shearing is ().(D)
A, door leaf
B, door lock mechanical device
C, door lock electrical safety device
D, all options
25, [Single choice question] When traction drive the brake coil () of the elevator, press the brake arm on the brake wheel by relying on the brake spring. (B)
A, powered
B, powered
C, stressed
D, stressed
26, [Single choice question] The car upward speed protection device of the traction drive elevator can act on the car, counterweight, wire rope system and (). (B)
A, guide wheel
B, traction wheel
C, reverse wheel
D, all options
27, [Single choice question] The limit switch should work when the touch buffer is (). (A)
A, before
B, after
C, between
D, above
28, [Single choice question] The maximum running speed of hydraulic elevator is () m/s. (D)
A, 0.63
B, 0.8
C, 0.85
D, 1
29, [Single choice question] hydraulic system consists of integrated valve block (group), shutdown valve , () and oil cylinder. (C)
A, mixing valve
B, pressure gauge
C, rupture valve
D, check valve
30, [Single choice question] Mechanical and electrical equipment that is driven by power, using a box running along a rigid guide rail, or a step (step) running along a fixed line to lift or transport people and goods in parallel is called (). (A)
A, elevator
B, elevator
C, transport
D, winch
31, [Single choice question] When the elevator fails and the passenger makes a ride request, the maintenance personnel should choose (). (B)
A. Users are allowed to ride
B first. They are prohibited from riding
C. They are
D in small fault states. They are
32 under the guidance of a maintenance worker. [Single choice question] The elevator continues to run after passing the end station. The () device in the shaft can prevent the elevator from rushing to the top or bottom of the pier. (B)
A, error-breaking phase protection
B, cross-end station protection
C, door lock protection
D, car slow shift
33, [Single choice question] The vertical distance between the bottom beam of the elevator car and the bottom of the heavy frame to the top surface of each buffer is called (). (C)
A, buffer distance
B, stroke distance
C, cross-distance distance
D, lift distance
34, [Single choice question] According to the "Beijing Construction Crane Safety Supervision and Management Regulations", () shall prepare a special construction plan for lifting machinery installation and disassembly in accordance with the safety technical standards and the performance requirements of lifting machinery , and shall be signed by the technical person in charge of the unit. (B)
A, general contracting unit
B, disassembly and assembly unit
C, user unit
D, property rights unit
35, [Single choice question] When the working current of an electrical equipment exceeds the rated value of , it means (). (B)
A, light load
B, overload
C, underload
D, full load
36, [Single choice question] relay is to switch () circuit, and contactor is to switch () circuit. (A)
A, control, main
B, main, control
C, lighting, control
D, security, control
37, [Single choice question] The guide rails for escalators to prevent the steps from deviating are called ().(C)
A, guide rail
B, reverse rail
C, side rail
D, regular rail
38, [Single choice question] The amount that characterizes the oscillation amplitude of sine alternating current is its (). (A)
A, maximum value
B, valid value
C, instantaneous value
D, frequency
39, [Single choice question] The first step to enter and exit the pit program is () (A )
A, door lock circuit of verification hall
B, emergency stop switch under verification pit
C, enter pit work
D, open pit lighting
40, [Judgement Question] GB/T31821-2015 "Technical Conditions for Scrap of Main Elevator Components" indicates: If the motor encounters a stator and rotor, it is deemed to have reached the scrapping technical conditions. (√)
41. [Multiple choice question] TSGT7005-2012 "Inspection Regulations (abbreviated) - Escalators and Automatic Sidewalks" stipulates that the handrail device facing the steps, pedals or tape should be smooth and flush. (√)
42. [Multiple choice question] "Micrometer" is just a reputational name, but it is actually a % measure. (√)
43. [Judgement Question] The "Special Equipment Safety Law of the People's Republic of China" stipulates that the construction unit for installation, transformation and repair of special equipment shall report the planned installation, transformation and repair of special equipment in writing to the special equipment safety supervision and management department, and construction can only be carried out after approval. (×)
44. [Multiple choice question] " Elevator Manufacturing and Installation Safety Specifications " (GB7588-2003) stipulates: When the electrical contacts of the elevator door lock are placed in the box, the screws on the box cover should be non-falling. When opening the lid, they should remain in the holes in the box or lid. (√)
45. [Judgement Question] "Safety Specifications for Elevator Manufacturing and Installation" (GB7588-2003) stipulates that when the distance between two adjacent ridges exceeds 11m, a shaft safety door must be installed. (×)
46. [Judgement Question] "Elevator system. Safety Production Simulation Exam One-point Pass. Manufacturing and Installation Safety Specifications", which is not applicable to debris elevators and hydraulic elevators. (√)
47. [Multiple choice question] After the lower limit switch is pressed by the pressing rod (bow hit), the elevator can only go up, not down. At the same time, it can answer the call from the stations above the car. (√)
48. [Judgement Question] For hydraulic elevator safety pliers, the hydraulic oil pump should be used to pressurize and lift the car to achieve it. (×)
49. [Judgement Question] The higher the voltage acting on the human body, the greater the current through the human body. (√)
50. [Multiple choice question] Before using to test the electric pen , it is best to check whether it is luminous normally on the power supply (√)
51. [Multiple choice question] Before the repairman enters the escalator or automatic sidewalk cabin, he must turn off and lock the main switch. (√)
52. [Multiple choice question] Allow running upwards on the downward escalator. (×)
53. [Multiple choice question] The brake, when the traction motor loses power, the electromagnetic coil loses power, the core is not controlled by electromagnetic, and is pushed-brake by the holding spring. (√)
54. [Judgement Question] force arm refers to the distance between the rotation axis and the line of action of the force. (×)
55. [Multiple choice question] The summoning button is a device used by passengers to summon the elevator. (√)
56. [Judgement Question] The tension of each traction wire rope should be consistent. (√)
57. [Multiple choice question] When cleaning the traction rope under the traction wheel, you must drive slowly. The wire rope on the side of the cleaning counterweight should run downward, and the wire rope on the side of the cleaning car should run upward. (×)
58. [Multiple choice question] All electrical components and plug-in and unplugged electronic circuit boards must not be replaced before the relevant power supply is cut off. (√)
59. [Judgement Question] Before inspecting or cleaning the elevator room, the power should be cut off and the warning sign "Someone works, please do not close the gate" is hung "Safety Production Simulation Exam Pass".(√)
60. [Multiple choice question] When unloading goods with a crane near a high-voltage line, the crane mast should be kept away from the high-voltage line. (×)
61. [Judgement Question] The elevator with the model TKZ1000/2.5-JX represents: DC passenger elevator, rated load 1 ton, speed 2.5 meters/sec, and selected control. (√)
62. [Multiple choice question] If you touch the metal part of the car, it means that the elevator may have leakage. (√)
63. [Judgement Question] Small capacity three-phase asynchronous motor can generally use full pressure starting. (√)
64. [Multiple choice question] pointed-nosed pliers is suitable for working in a narrow space. (√)
65. [Multiple choice question] traction machine with worm gear reducer has stable operation, reverse drive self-locking, low noise and high. Latest analysis. Features of effective slowdown. (√)
66. [Multiple choice question] A commonly used clamp ammeter can only measure circuits below 380V. (×)
67. [Multiple choice question] There should be a safety sign to remind passengers: When riding an escalator, the head and hand should not extend the escalator to prevent being hit by static objects on the side. (√)
68. [Multiple choice question] The unlocking area refers to the height range of the parking position of the car, and the section where can automatically switch doors. The car cannot open the door automatically when it leaves this section. (√)
69. [Multiple choice question] When the escalator suddenly slides in reverse gravity while it is rising, the anti-reversal protection device (also known as "additional brake" or "ratating paw brake" and "emergency brake", commonly known as "stop slip") can stop it from running. (√)
70. [Judgement Question] When traction drives the elevator to start and run, and the motor cannot operate, the motor running time limiter should work if it is greater than 45 seconds. (√)
71. [Multiple choice question] When the car or the counter hits the bottom, the buffer can weaken its impact energy. (√)
72. [Judgement Question] Manually dismount the car and move the car, the power must be cut off before the gate can be released. (√)
73. [Judgement Question] rotary encoder must be used, and must be grounded. (√)
74. [Judgement Question] reactive power is useless electrical power. (×)
75. [Multiple choice question] Traction rope, safety production simulation test, 1-pass, can be adjusted after natural stretching and lengthening. The length adjustment device is a multi-section seat block connected to the bottom of the counterweight frame. (√)
76. [Judgement Question] The interaction force between the traction wire rope and the car will generate the traction force required to traction drive the elevator. (×)
77. [Multiple choice question] When traction drive elevators use rope clamps to fix the wire rope, you must pay attention to the coordination and clamping of the rope clamp specifications and the nominal diameter of the wire rope. When fixing, more than two rope clamps must be used, and the rope clamp U-shaped bolts should be clamped on the short side of the wire rope. (×)
78. [Multiple choice question] When replacing the roller of the door leaf, you should confirm that the new roller rotates flexibly and has no abnormal shape. Rolling bearing should be injected with grease. (√)
79. [Judgement Question] Machine-electric brake, during the operation of the main machine, should be continuously powered on and kept the gate loose. After the brake is powered off, the brake should delay braking. (×)
80. [Multiple choice question] The limit switch should work before the car or counterweight contact buffer. And the buffer is kept open in the pressed section. (√)
81. [Multiple choice question] The maintenance door, safety door, and maintenance trap door must be locked before the elevator can be opened. No door can be opened without locking. (√)
82. [Judgement Question] When measuring the illuminance of the shaft, illuminance meter should be placed on the bottom pit floor to measure. (×)
83. [Multiple choice question] The viscosity of lubricating oil will change with temperature. (√)
84. [Judgement Question] hydraulic buffer is only suitable for elevators with a rated speed less than 1m/s.(×)
85. [Judgement Question] Elevators, passenger cableways, large amusement facilities and other special equipment operation and use units that provide services to the public should set up special equipment safety management agencies or be equipped with full-time and part-time special equipment safety management personnel. (×)
86. [Judgement Question] Elevator operators should operate in accordance with construction technology and operating procedures. (√)
87. [Judgement Question] When an elevator is trapped, the manual gate loosening device must be used to apply continuous force to maintain the brake's gate loosening state. (√)
88. [Multiple choice question] The elevator’s access door, maintenance trap door, and safety door with hinges are not allowed to open to the side that affects the operation of the elevator. So when using a key to unlock the lock, it is mostly to push the door open, rather than to pull it open. (×)
89. [Judgement Question] The grounding point of elevator control cabinet can be concentrated or grounded separately. (×)
90. [Multiple choice question] A normally closed brake should be installed on the elevator traction machine, and the brake should be automatically braked no matter what the reason why the brake loses power. (√)
91. [Multiple choice question] Elevator machine rooms are not used for purposes other than elevators, and cables, pipelines or facilities other than elevators should not be installed. (√)
92. [Judgement Question] During the elevator maintenance process, if temporary short-circuiting and sealing measures are taken, they should be dismantled in time after use and shall not be used permanently on the operating equipment. (√)
93. [Judgement Question] The size of the resistor is proportional to the voltage and inversely proportional to the current. (×)
94. [Multiple choice question] An old-fashioned tachometer requires pressing the measuring head against a rapidly rotating machine to read its speed. Modern tachometers can measure without contacting rotors. (√)
95. [Multiple choice question] The door door opening restriction device can prevent the car parked outside the unlocking area from opening the door from the car. (√)
96. [Multiple choice question] The maintenance of the top of the sedan chair is a high-level operation. Pay attention to the surrounding environmental conditions to prevent lapse into the air, start, shear, fall, impact, or electric shock. (√)
97. [Multiple choice question] The maintenance trap door leading to the shaft opens outside the shaft. The maintenance personnel cannot push the shaft outside the shaft. (√)
98. [Multiple choice question] The maintenance trap door leading to the shaft opens outside the shaft. The maintenance personnel can open the door outside the shaft. (√)
99. [Judgement Question] The larger the "safety coefficient" selected for the wire rope, the greater the redundancy, the safer it is (√)
100. [Judgement Question] The speed limiter overspeed protection switch should be cut off before the speed limiter pulls the rope and park. (√)
supports accurate T elevator repair test questions in various regions across the country, supports safety qualification certificate, special operation certificate , professional skills appraisal and other job question bank exercises.
