Item name of pre job safety education examination paper for construction elevator driver full name: Date: score: 1、 Fill in the blanks: (2 points for each blank, 24 points in total) 1
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Drivers of external elevators must wear qualified shoes when entering the site ， On duty
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2
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Key inspection before operation: 、 It should be intact, If there is any obstacle, the problem must be solved It can only be started
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3
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When people or objects are carried in the cage, the load shall be reduced ， prevent ， strictly prohibit function
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4
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Before operation, it is necessary to The elevator is not cut off The operator is not allowed to leave before operation 。 5
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The construction elevator is generally composed of a cage, a base, a 、 、 、 、 、 And so on
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6
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The travel limit switch is allowed to be set at the highest and lowest points of the construction elevator Or down to In case of collision, the limit switch will cut off the power supply and stop
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7
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The lifting cage should be adjusted before starting ， Remove all unsafe items 。 During safe operation, it must be loaded according to the rated installation capacity, and it is not allowed to be loaded 。 8
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When the elevator runs for the first time in each shift, it should run with no load and full load respectively to raise the cage from the ground Stop about 20 meters and check the brake ， It can be put into operation after being confirmed to be normal
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9
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Before the power switch is cut off at the end of the elevator, the driver is not allowed to leave the control post and lower the cage to the bottom after operation ， Turn all control switches to zero position to cut off ， Lock the gate box and ladder cage
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10
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After the operation, lower the ladder cage down ， Each manipulator turns to ， Cut off the power supply and carry out the post shift operation according to the maintenance procedures 、 、 、 Clean up and shut down Control box, locking and 。 11
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It is strictly forbidden to stick your head out when working Out of the window, no ， No leaving without permission Post, leaving midway must be locked 、 Power Supply
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12
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Prohibition Do not work without permission Protective equipment, operation and maintenance are prohibited Irrelevant mechanical equipment
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2、 Multiple choice questions: fill in the number of the correct result in brackets (3 points for each question, 12 points in total)
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1
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The elevator can use the electric elevator installed on the top It can also be assembled with tower crane and other lifting equipment at the construction site
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A, pull rod B, lifting rope C, crown wheel D, suspender 2, speed governor must be adjusted after each action 。 A
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Scrub B, reset C, clean D, update 3, wire rope broken wire, deformation, loose strand, serious corrosion to replace
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Broken wire means that the number of broken wires is greater than the total number within 10 times of the diameter and length of the wire rope 。 A, 5% B, 6% C, 10% D, 15% 4
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There are four buffers on the bottom cage framework of construction elevator ， It acts as a buffer when the cage falls
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A
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gasket B
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sling C
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spring D
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steel wire rope“ ×”（ 1
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During the operation, the driver should concentrate his energy
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He should not talk with others, read books or leave the post
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He should master the sound and command signals of all mechanical departments at any time
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（ ） 2
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After switching on and energizing, the driver shall not leave without permission
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If he wants to leave, he must turn off the power and close the lock box
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（ ） 3
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Check whether all the guide rollers are engaged with the standard section column during operation
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If the gap is too large, it is necessary to adjust it at any time before the elevator works
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（ ） 4
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Check whether the speed limiter brake device is sensitive and reliable, whether it is reset after the action, and the work with infinite hysteresis in the movement should be carried out in the process of elevator work
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（ ） 5
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When taking over the shift for the first time, stop the car five meters above the ground to check whether the cage drops automatically
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（ ） 6
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Each limit, limit and safety control switch is complete, the position is correct, sensitive and effective before driving
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（ ） 7
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The main circuit of construction elevator is mainly composed of motor, circuit breaker, thermal relay, electromagnetic brake and phase sequence open phase protector
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（ ） 8
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When the cage is running, the vibration is too large, and the causes are as follows: the connecting bolts of the guide roller are loose; The meshing clearance of gear and rack is too large or lack of lubrication
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（ ） 9
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When the electric equipment or cargo burns suddenly during the operation of the cage, the driver shall immediately stop the operation of the construction elevator, cut off the power supply in time and put out the fire with a fire extinguisher
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（ ） 10
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The driver of the construction elevator shall receive the training of safety operation knowledge, pass the examination of the competent department of construction, and obtain the qualification certificate of construction special operation
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（ ） 11
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After the anti falling safety device acts, it needs to be reset by professional personnel to make the construction elevator return to normal working state
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（ ） 12
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When the cage is out of control when it is running or stopping, the emergency stop switch shall be pressed immediately to cut off the power supply of the control circuit, so that the cage will stop running and be overhauled by professional personnel.
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