Name: TestNo.: Unit:
Item fill-in-the-blank multiple-choice questions are the total scores of non-question short-answer questions.
Take the lead
A, fill in the blanks (25 points, 65438+ 0 points per grid)
1, China's safety production policy should adhere to ",,
"policy.
2, for the first time to obtain the "construction special operation qualification certificate" personnel practice operation shall not be less than, otherwise, shall not work independently.
3. The main protective facilities for limb operation are and.
4, outdoor 220V lamps and lanterns is not less than the ground, indoor 220V lamps and lanterns is not less than the ground.
5, safety "treble" refers to the necessary work in site construction,
、 。
6, electrical fire fighting should be carried out first.
7. The distance between temporarily stacked dismantling instruments, components and materials and the working edge should not be less than1m..
8. The safety colors are red respectively; Blue indicates instructions; Green means permission and security; Yellow means.
9. The main electrical appliance is an electrical appliance that can give instructions, mainly including buttons, travel switches, converters, proximity switches, etc.
10, and are two common fault forms of gear transmission.
1 1. The limit baffle is a metal part that triggers the safety switch. When the safety switch is triggered by the operation of the elevator or the action of the safety device, the elevator should be able to avoid safety accidents.
12, the hanging cage door should be installed to ensure that it will not open automatically during operation.
13. The use of construction elevators must follow the principles of "combining management, use and maintenance" and "appointing personnel, machines and posts", and implement the post responsibility system of appointing personnel, machines and posts.
14, in order to make the construction elevators know each other, explain the problems, distinguish responsibilities, prevent mechanical damage and loss of accessories, and ensure the continuous construction and production, it must be established as an integral part of the post responsibility system.
15. When the cage door and guardrail of the construction elevator are closed, if the cage can't start normally, it should be reset immediately to prevent the motor from being damaged due to lack of phase or brake failure.
16, the common faults of construction hoisting are generally divided into two categories: and.
Second, the choice (40 points, 2 points for each question)
1, the brake is not only the control device of the crane, but also.
A, switch device b, contact device c, safety device d and operating device
2, relay is a kind of, under a certain input parameters, it is affected by the input terminal and make the output parameters have a jump change.
A, automatic control electrical appliance B, main command electrical appliance C, switch electrical appliance D, contact electrical appliance
3, the state of the circuit, open circuit and short circuit.
A, path b, open circuit c, parallel connection d, series connection
4. The main task of the circuit is to transmit and convert electric energy.
A, application b, control c, distribution d, conversion
5. Used for the connection between shafts.
A, pin b, key c, coupling d and brake
6. In general, steel structures should not be used in the following structures.
A, tower mast structure B, plate shell structure C, masonry structure D, and detachable movable structure
7. Lifting point during lifting: The lifting point should be located at the end far away from the lifting point.
A, 0.8 L B, 0.6 L C, 0.5 L D, 0.3 L.
8, in order to prevent lifting rigging decoupling, must be equipped with a reliable hook.
A, bolt connection b, key connection c, anti-falling claw d and brake
9. The step difference caused by the dislocation of the contact section of the elevator guide rail in 9.SS construction is not greater than.
A, 0.5mm b,1.5mm c, 2.5mm d, 3.5mm.
10, the manned hanging cage shall be covered, and the clear height in the cage shall not be less than.
a、 1m B、 1.5m C、2m D、2.5m
When 1 1 and the diameter of steel wire rope is 22mm, the number of rope clamps shall be at least one.
a、3 B、4 C、5 D、6
12. The guide rail frame of the construction elevator is assembled by standard height guide rails.
A, welding B, steel wire rope connection C, riveting D and high-strength bolt connection
13. When assembling and constructing elevator standard sections, the joint surfaces of adjacent standard section columns should be straight, and the step difference caused by mutual dislocation should be limited to: ① the car guide rail should not be greater than; (2) the counterweight guide rail should not be greater than.
A, 0.5mm, 0.8mm b, 0.6mm, 0.2mm c, 0.8mm, 0.5mm.
D, 0.2mm, 0.6mm
14 is the main transmission mechanism of SC construction elevator.
A, gear B, lifting gear pair C, rack D, crane
15. There are drainage facilities around the foundation of the construction elevator. No trench can be excavated around the foundation, and no construction that causes great vibration to the foundation can be carried out.
a、5m、30m B、 10m、30m C、30m、5m D、30m、 10m
16, the construction elevator is a construction machine that uses hanging cages to transport people and goods up and down the guide rail. Mainly used in building construction.
A, low-level B, multi-level C, small high-level D, high-level
17. The standard section of the construction elevator is welded by four steel pipes arranged at four corners as risers and angle steel and round steel as horizontal rods.
A, diagonal tie bar b, diagonal web bar c, diagonal compression bar d and cross bar
18. When the construction elevator is erected over a certain height, it should be used to recover the accompanying cable due to the mechanical strength of the cable.
A. cable inlet frame b, cable guide frame c, cable storage drum d and cable pulley system.
19. The hoisting and maintenance methods in construction generally adopt "cleaning, fastening, adjustment, lubrication and anticorrosion", which is usually referred to as "method" for short.
A, cross operation b, flow operation c, parallel operation d, longitudinal operation
20, the construction of elevator environmental facilities, the top wind speed shall not be greater than.
A, 10m B, 15m C, 20m D, 25m III. Judgment (15, each question 1 minute)
1, in case of severe weather such as strong wind and dense fog with magnitude 6 or above, it is not allowed to work at heights in the open air. ( )
2. It is forbidden to gather overweight people or place materials exceeding the calculated load on scaffolding and scaffolding. ( )
3. When working at heights without reliable safety protection measures, you must wear your seat belt, and the hanging seat belt should be hung high and used low. ( )
4. The validity period of the qualification certificate for construction special operations is three years. ( )
5. Materials used for aerial work should be piled up smoothly. ( )
6, inflammable and explosive goods warehouse should be set up more than two doors, the door should be open to the outside. ( )
7. After the accident, the relevant personnel at the scene of the accident shall immediately report to the person in charge of the construction unit; After receiving the report, the person in charge of the construction unit shall report to the competent construction department and relevant departments of the people's government at or above the county level where the accident occurred within 1 hour. ( )
8, the construction site to stop working more than 1 hour, switch box should be locked. ( )
9. When fire is used in construction, it shall be examined and approved by the person in charge of fire prevention on the construction site, and the operation can be carried out at the designated place and time after obtaining the hot certificate. ( )
10, the temporary dormitory is not less than 30m away from the production site with high fire risk. ( )
1 1. Internal inspection of steel wire rope: During inspection, clamp two clamps with proper size (100-200mm) on the steel wire rope, and the strand will fall off when it rotates in the opposite direction. ( )
12, remind everyone before the elevator starts. If there is any abnormality in the operation, please press the emergency stop button immediately. ( )
13. Each construction elevator is operated, maintained and maintained by more than one person. ( )
14, the bell must be rung before the cage is started. ( )
15, when the construction elevator is abnormal, the operator should not stop working, but should report to the relevant departments in time, so as to handle it in time, eliminate hidden dangers and resume normal work. ( )
Four, short answer (10)
Emergency operation requirements: how to deal with the fire of the hanging cage during operation?
Verb (abbreviation of verb) case analysis (10 score)
On a certain day in 2008, the guide rail frame of a construction elevator broke, which caused the hanging cage in operation to fall from the air to the ground, causing 18 deaths.
Construction elevator driver safety technology theory test paper
Project Name: Last Name:
Date: Score:
1. Fill in the blanks: (2 points for each question, ***50 points)
1, the elevator top is equipped with a balance weight protection switch. When the counterweight wire rope is suddenly disconnected and the ladder cage is out of balance, the protective switch acts to make the ladder cage.
2. The speed limiter is the main safety device of the construction elevator, which limits the ladder cage through the reaction force of the fixed gear on the motor-driven column to prevent the ladder cage from moving along the guide rail column.
3. The construction elevator itself should be set to ensure safe use, and these devices should be kept in good condition to prevent accidents.
4, construction elevator generally consists of ladder cage, base,,,,
And a motor.
5. Travel limit switches are allowed at the highest and lowest points of the construction elevator. When the ladder cage rises or falls,
When the collision limit switch cuts off the power supply and stops.
6. There is a transmission mechanism in the ladder cage of the construction elevator, and a cab is attached to the other side.
7. Each standard section is100m high and welded by seamless steel pipes, and each section is equipped with a transmission frame.
8, hanging cage must be carried out before start, remove all unsafe factors. Safe operation must be loaded according to the rated installation load, which is not allowed.
9. Installation shall not be carried out in thunderstorm, snowy day or bad weather with wind speed exceeding.
10. When the elevator runs for the first time per shift, it should run with no load and full load respectively. Lift the ladder cage to about 100 meters above the ground, and then stop. Check the brake and make sure it is normal before putting into operation.
1 1. The driver shall not leave the operating post before cutting off the power switch at the end of the elevator. After the operation, put down the ladder cage, turn all control switches to zero, cut off and lock the brake box and ladder cage.
12. The weight and number of people carried by the construction elevator shall meet the grade specified in the user manual. It is forbidden to overload and forcibly transport materials, and the time shall not be too long. When transporting flammable items such as hot dip, measures should be taken to prevent burns and other accidents.
Second, multiple-choice questions: fill in the question number of the correct result in brackets (2 points for each question ***8 points).
1. The elevator can be assembled by electrical equipment installed at the top, or by cranes and other lifting equipment at the construction site. A, tie rod b, sling c, crown block d, derrick
2, the speed limiter must be carried out after each action.
A, scrub B, reset C, clean D and update
3, wire rope fracture, deformation, loose strands, serious corrosion will be replaced. Broken wires mean that the number of broken wires on the wire rope is greater than 10 times the total number in the range of diameter and length. a、5% B、6% C、 10% D、 15%
4. There are four buffers on the cage frame of the construction elevator, which play a buffering role when the cage falls.
A, gasket b, lifting rope c, spring d and steel wire rope
True or false: draw "√" correctly and "×" incorrectly (2 points for each question, *** 12 points).
1, during operation, the driver should pay attention, not to talk to people, read newspapers or get off work, and keep abreast of the voices and command signals of various parts of the machinery. ( )
2. After switching on, the driver shall not leave without leave. If you need to leave, you must cut off the power and close the lock box. ( )
3. Check whether all guide rollers are engaged with standard section columns during operation. If the gap is too large, it needs to be adjusted at any time before the elevator works. ( )
4. Check whether the braking device of the speed limiter is sensitive and reliable, whether it is reset after the action, and the elevator should work with infinite hysteresis during the movement. ( )
5, the succession of the driver should stop at five meters from the ground when driving for the first time to check whether there is any automatic decline in the hanging cage. ( )
6, limit, limit, safety control switch is complete, the position is correct, sensitive and effective, before driving. ( )
Question and answer: (15 * * * 30 points for each question)
1. Briefly describe the problems that should be paid attention to in elevator work?
2. What are the parts of the construction elevator? What is the function of each part?
What adjustments should be made after the hanging cage is installed?
Construction elevator test paper answer
First, fill in the blanks:
1, electromagnetic control; 2. Running speed; 3. Safety device; 4. Standard joint, wall frame, main transmission mechanism, speed limiter, crown block and counterweight; 5, the highest and lowest; 6. Safety mechanism and electric box; 7、 1.5; 8. Safety inspection; Ninth and fourth grades; 10, 1M, sensitivity; 1 1, ground, power supply; 12, carrying capacity and corresponding measures
Second, multiple-choice questions:
1、D 2、B 3、C 4、C
Third, true or false:
1、√ 2、√ 3、√ 4、× 5、√ 6、√
Fourth, question and answer:
1. When the elevator is working, the driver should pay attention, don't talk to others, read books or leave his post, and keep abreast of the situation of various parts of the machinery. Don't leave your post without leave. If you need to leave, you must turn off the power and lock the box.
2. Transmission system, guide rail frame, hanging cage, balance system, outer cage, suspender and safety device.
The function of each part is: the yarn conveying system is the output and transmission action, and the guide frame is the support of the elevator up and down.
Hanging cage is the core part of elevator manned.
The counterweight iron plays the role of balancing the hanging cage, and the outer cage is the stop of the hanging cage.
Derrick is a facility for installing standard joints.
The safety device is a safety device to prevent the hanging cage from falling.
After the installation of the hanging cage, it should be put into trial operation, and the upper and lower limits of the hanging cage, the entrance and exit of the hanging cage, and the safety door of the outer cage should be sensitive and reliable.