2022 t elevator repair recurrent training question bank and answers

Source of question bank ： Safety production simulation test, a little public official account.

2022T The title of elevator repair certificate is T Secret examination paper for elevator repair before examination ！2022 year T Elevator repair retraining question bank and answer basis T New examination outline for elevator repair .T The elevator repair examination materials can be used to practice the intelligent question bank at any time according to the safety production simulation examination .

1、【 Multiple choice 】TSGT7005-2012《 Check the rules ( abbreviation )- Escalators and moving sidewalks 》 Regulations ： Installation, operation and maintenance instructions of escalator or moving sidewalk , Shall include （） Operation instructions .（  ABCD  ）

A、 install

B、 Use

C、 Daily maintenance

D、 Emergency rescue

2、【 Multiple choice 】 Circuit breaker , The main functions of （）.（  ABCD  ）

A、 Turn on the circuit

B、 Disconnect the circuit

C、 Short circuit protection

D、 Overload protection

3、【 Multiple choice 】 When replacing the pressure belt of escalator or moving sidewalk , Several steps or pedals must be removed , Its operation shall include （）.（  ABCD  ）

A、 Loosen the tension spring of the belt , Loosen the tension belt , Replace the pressure band

B、 Adjust the tension spring to tension the pressure belt

C、 Commissioning , Check whether the handrail and pressure belt are normal

D、 Install steps or pedals

4、【 Single topic selection 】 Two of a moving sidewalk “ Emergency stop ” Between buttons , The distance should be （）.（  B  ）

A、 No more than 30m

B、 No more than 40m

C、 be equal to 50m

D、 be equal to 60m

5、【 Single topic selection 】 Any electrical equipment before it is verified that there is no electricity , Be treated as () Handle （  C  ）

A、 No electricity

B、 Maybe there's electricity

C、 There is electricity

D、 Direct manipulation

6、【 Single topic selection 】 The international unit of force is （）.（  D  ）

A、 kg

B、 g

C、 kg

D、 Newton

7、【 Single topic selection 】 When adjusting the balance coefficient of traction driven elevator , The counterweight side weight shall be configured according to （） To make sure .（  D  ）

A、 Car side weight

B、 Rated speed of elevator

C、 Rated load of elevator

D、 Car side weight and its rated load

8、【 Single topic selection 】 For the motor 、 Insulation performance inspection of electrical appliances and power supply lines , You should use （）.（  C  ）

A、 A multimeter

B、 ammeter

C、 Megger

D、 voltmeter

9、【 Single topic selection 】 The chute of landing door sill is blocked by foreign matters , May lead to （）.（  B  ）

A、 The elevator can't start

B、 The door leaves shake or jam

C、 There is noise in car operation

D、 The car is difficult to start or the speed is reduced

10、【 Single topic selection 】 Disassembly and assembly of steps , Must be cut off （）, Move the step to the proper position by manual turning , To facilitate disassembly .（  B  ）

A、 chain

B、 Power Supply

C、 Overhaul

D、 Handrail

11、【 Single topic selection 】 Used in daily life 220V The ac power ,220V It refers to the of AC voltage （）.（  C  ）

A、 Instantaneous value

B、 Maximum

C、 Valid values

D、 Constant value

12、【 Single topic selection 】 The car up overspeed protection device of traction driven elevator can act on the car 、 Counterweight 、 Wire rope system and （）.（  B  ）

A、 Guide wheel

B、 Traction wheel

C、 Reverse sheave

D、 All options

13、【 Single topic selection 】 The production and business operation entities shall be located at the production and business operation sites and relevant facilities with major risk factors 、 On the device , Set obvious ( ).（  B  ）

A、 Alarm device

B、 Safety warning signs

C、 Indicator light

14、【 Single topic selection 】 The validity period of the canister is generally ( ) Months .（  C  ）

A、30

B、36

C、24

15、【 Single topic selection 】 The greater the current flowing through the human body , The deadly danger is （）.（  C  ）

A、 The safer

B、 The smaller it is

C、 The bigger it is

D、 It doesn't affect

16、【 Single topic selection 】 There is a basic way for the speed of hydraulic elevators （）.（  C  ）

A、 Volume speed control and pressure speed control

B、 Pressure speed regulation control and throttle speed regulation control

C、 Volume speed control and throttle speed control

D、 Variable frequency speed control and throttle speed control

17、【 Single topic selection 】 In the elevator model , Letters expressing variety code “G”, What does it mean .（  B  ）

A、 High speed elevator

B、 Sightseeing elevator

C、 Engineering elevator

D、 High rise elevator

18、【 Single topic selection 】 When the terminal of the elevator forces the speed change switch to act, it will cut off the elevator （） circuit .（  B  ）

A、 Maintenance and operation

B、 Fast operation

C、 Terminal limit

D、 Terminal limit

19、【 Single topic selection 】 All connection points of blasting connection must be suspended, and the suspension points must be bound firmly , The detonator's energy accumulation hole is facing down , And keep at least with the ground ( )mm.（  A  ）

A、200

B、400

C、600

20、【 Single topic selection 】 In order to keep the water level normal , When the boiler operates at low load , The water level () Normal water level , In case the water level drops too low when the load increases .（  B  ）

A、 be equal to

B、 Slightly higher than

C、 higher than

21、【 Single topic selection 】 The display instrument of thermal resistance indicates a negative value , Please analyze the possible causes of the fault ().（  B  ）

A、 The thermoelectric circuit is blocked

B、 Thermal resistance short circuit

C、 The outgoing line is open

22、【 Single topic selection 】 The function of the reducer is ( ).（  B  ）

A、 Bear various normal loads

B、 Decelerate and transmit power

C、 Connect the rotating part of the hoist

23、【 Single topic selection 】 High voltage cable connectors shall be at least ( ) Check 1 Secondary insulation .（  B  ）

A、 everyday

B、 Once a week

C、 monthly

24、【 Single topic selection 】 The detonator must be made of ( ) Take good care of , On 、 Take it with you when you go down the well , Shift lift inspection .（  B  ）

A、 Team leader

B、 Blaster

C、 Security Officer

D、 Gas inspector

25、【 Single topic selection 】 Mine explosion-proof symbol “d” by ( ) equipment .（  B  ）

A、 Increased safety type

B、 Flameproof type

C、 Intrinsically safe

D、 Sand filled mold

26、【 Single topic selection 】 When the highway transportation of open pit mine stops on the ramp , The improper practices of drivers are ( )m.（  A  ）

A、 For safety, the driver left

B、 Necessary safety measures have been taken

C、 Use the parking brake

27、【 Single topic selection 】 The method with better dust removal effect for secondary crushing drilling of hand-held rock drill is ( ).（  C  ）

A、 Bag dedusting

B、 Spray water to remove dust

C、 Wet drilling

28、【 Single topic selection 】 The process of elevator maintenance personnel entering the pit shall not include （）.（  D  ）

A、 Open the landing door

B、 Turn on the pit lighting

C、 Disconnect the pit safety switch

D、 Turn on the pit maintenance switch

29、【 Single topic selection 】 according to 《 Law on prevention and control of occupational diseases 》, When the employer and the employee conclude a labor contract , The possible problems in the process of work should be () Truthfully inform workers , And state in the labor contract , No concealment or deception .（  C  ）

A、 Occupational hazards and their consequences

B、 Occupational disease prevention measures and treatment, etc

C、 Occupational hazards and their consequences 、 Occupational disease prevention measures and treatment, etc

30、【 Single topic selection 】 The goal of safety production management is to reduce and control ( ), Reduce and control ( ), Try to avoid personal injury caused by accidents in the production process 、 property loss 、 Environmental pollution and other losses .（  A  ）

A、 Hazardous accident

B、 Harmful accidents

C、 Dangerous and harmful

31、【 Single topic selection 】 In cascade control system , The positive and negative effects of the main controller depend on ().（  A  ）

A、 The main object

B、 Sub controller

C、 Secondary object

32、【 Single topic selection 】 When the wire is grounded , The closer the human body is to the grounding point , The higher the step voltage , Generally, it is far from the grounding body (), The step voltage is almost zero .（  A  ）

A、20m outside

B、10m within

C、30m outside

33、【 Single topic selection 】 Lift to solve difficulties , When the power supply needs to be cut off , Should be cut off （） Power Supply ？（  D  ）

A、 Main switch

B、 lighting

C、 Safety loop

D、 Power supply

34、【 Single topic selection 】 Personal protection refers to an activity in which the human body reduces dust inhalation by wearing various protective masks ( ) measures .（  B  ）

A、 protective

B、 Remedy

C、 It works

35、【 Single topic selection 】 When production and other work conflict with safety , Give priority to safety , Production and other work shall be subject to safety , This is it. ( ).（  C  ）

A、 The prevention of

B、 Causal relationship

C、 Safety first

36、【 Single topic selection 】 The following are not of shotcrete anchor support type ( ).（  C  ）

A、“ spray + anchor ” Combined support

B、“ spray + anchor + network ” Combined support

C、“ anchor + network ” Combined support

37、【 Single topic selection 】 Elevator door lock , And safety circuit , In principle, （）.（  A  ）

A、 Short circuit is not allowed

B、 Short circuit is allowed

C、 Allow to remove

D、 It is not allowed to dismantle

38、【 Single topic selection 】 The interval for the operator to change the mechanical oil of the motor bearing bush is every ( ).（  C  ）

A、 Zhou

B、 month

C、 Half a year

39、【 Multiple choice 】 The following practices are illegal operations ( ).（  ABCDE  ）

A、 Go on duty without certificate

B、 Don't wear a safety helmet when entering the well 、 Miner's lamp 、 Self rescuer

C、 leave one's post temporarily 、 sleep 、 Work after drinking

D、 Don't execute “ Knock on the top ” System and “ Support principle ”

E、 In the empty gang 、 Empty roof 、 Work under the eaves of pumice umbrella or enter the goaf ( Laotang ) Homework

40、【 Single topic selection 】 The working surface at the bottom of the well must be adequately illuminated , And at least have ( ) A miner's lamp .（  C  ）

A、2

B、3

C、4

41、【 Multiple choice 】 Wear self rescuers during evacuation from unsafe areas , If you feel dry and uncomfortable when inhaling , You can't ( ).（  ABC  ）

A、 Take off your mouth and inhale

B、 Take off the nose clip and inhale

C、 Speak through the mouth

42、【 Multiple choice 】 cannon , Security production Mock test try A little , The safety requirements of the excavation face include ( ).（  ABC  ）

A、 The pipeline hanging in the roadway is neat and standard

B、 The air purification spray device works well

C、 Must insist “ One shot three inspection system ”

D、 Wait while you explode 3min

E、 Try not to drill

43、【 Multiple choice 】 To establish and perfect ( ) It is the policy requirement of the party and the state for various production enterprises in terms of safety production , At the same time, it is also the own demand of production and operation enterprises .（  AC  ）

A、 Safety production responsibility system

B、 Business security responsibility system

C、 Post safety responsibility system of type of work

D、 Business objective responsibility system

44、【 Judgment questions 】 The symptoms of moderate carbon monoxide poisoning are : Have a headache 、 dizzy 、 Heavy head 、 nausea 、 vomiting 、 General fatigue and weakness 、 tinnitus 、 palpitation 、 In a trance .（  √  ）

45、【 Judgment questions 】GB16899-2011《 Specification for the manufacture and installation of escalators and escalators 》 Regulations ： The standby state of escalator or moving sidewalk refers to the stop state of escalator or moving sidewalk under no load .（  ×  ）

46、【 Judgment questions 】TSG5002-2017《 Elevator maintenance rules 》 Regulations ： In case of elevator failure, etc , Detailed records shall be made in time .（  √  ）

47、【 Judgment questions 】《 Production safety law of the people's Republic of China 》（2014 Annual revision ） Regulations ： Production and business operation entities shall establish and improve the investigation and treatment system of hidden dangers of production safety accidents , Take technical 、 Management measures , Discover and eliminate potential accidents in time . The investigation and treatment of potential accidents shall be truthfully recorded , And inform employees .（  √  ）

48、【 Judgment questions 】 Installation of sensors or sensors on hoistway and car roof , The support shall be fixed with bolts , Do not weld .（  √  ）

49、【 Judgment questions 】 In case of failure of underground detonator , Do not disassemble and repair underground , Don't beat 、 To hit .（  √  ）

50、【 Judgment questions 】 Special equipment , It refers to the boiler with great danger to personal and property safety 、 Pressure vessel 、 Penstock components 、 The elevator 、 Hoisting machinery 、 Passenger ropeway 、 Large amusement facilities 、 site （ factory ） Special motor vehicles in the , And the law 、 Other special equipment to which this Law applies in accordance with administrative regulations .（  ×  ）

51、【 Judgment questions 】 Tetrafluoroethylene is colorless and smelly . Safety student Production model I plan to pass the exam at one point . Egg scented gas .（  ×  ）

52、【 Judgment questions 】 There are different communication protocols in smart valve positioners of various companies , They are HART agreement ,DE Communication protocol ,FF-H1 Fieldbus communication protocol and other communication protocols .（  √  ）

53、【 Judgment questions 】 The user of special equipment shall carry out regular daily maintenance of special equipment in use , And conduct regular self inspection .（  √  ）

54、【 Judgment questions 】 In the circuit with gas discharge lamp as the main load , The neutral line section shall not be less than the phase line section .（  √  ）

55、【 Judgment questions 】 In case of power failure or failure, people are trapped , The emergency rescue device driven by battery can be used , Drive the elevator to the nearest landing , Lay people flat .（  √  ）

56、【 Judgment questions 】 Static load test method for brake force adjustment ： The car stops on the ground floor , Rated load installed in the car 50% load , It took ten minutes . The friction plate does not slip , The car does not slip .（  ×  ）

57、【 Judgment questions 】 Installation of landing sill , The accuracy requirement is 2/1000. Level ruler , There are no reading lines , Should not be used .（  √  ）

58、【 Judgment questions 】 Under the protection of the security system , The car roof safety window is open or not locked , The elevator can't be started .（  √  ）

59、【 Judgment questions 】 Acceptance of boiler installation permit 、 The approval shall be made by the province where the boiler installation unit is located 、 Autonomous region 、 The quality and Technical Supervision Department of the municipality directly under the central government shall be responsible for .（  √  ）

60、【 Judgment questions 】 When using roller driven belt conveyor , Flame retardant conveyor belts must be used .（  √  ）

61、【 Judgment questions 】 In any rescue process , The first element is to observe whether there are risks around , Whether it can be controlled before implementation .（  √  ）

62、【 Judgment questions 】 On the car roof , The safety window can be locked without a key .（  √  ）

63、【 Judgment questions 】 The roof water spraying of coal mining face is obviously increased , It is one of the omens of roof falling .（  √  ）

64、【 Judgment questions 】 The winch clutch observation hole shall be equipped with a shield , And fixed firmly .（  √  ）

65、【 Judgment questions 】 The configuration amount of counterweight of traction passenger elevator , The rated load is loaded in the lift car 40%～45% when , Lift car and counterweight balance .（  √  ）

66、【 Judgment questions 】 Commonly used clamp on ammeter , It can only measure 380V The following circuits .（  ×  ）

67、【 Judgment questions 】 Start the pump displacement from small to large , After the small displacement jacking is normal , Re chase · Security production The mock exam is a little through · Gradually increase to the design displacement , When reversing the pump in the middle , Operate smoothly .（  √  ）

68、【 Judgment questions 】CENTUMCS3000 Field control unit of the system FCU in , The bus interface card performs control calculations and monitors CPU And power supply unit .（  ×  ）

69、【 Judgment questions 】 Groundwater is often an important factor that leads to rock mass instability and engineering failure .（  √  ）

70、【 Judgment questions 】 All construction safety signs 、 instructions 、 Precautions and operating instructions shall be kept clear , And set it in an obvious position .（  √  ）

71、【 Judgment questions 】 All normal elevators in use , When there is no running instruction for a period of time , Will not automatically return to the base station for guests .（  ×  ）

72、【 Judgment questions 】 When the load of the drum shearer increases , Instead, the high pressure decreases , This indicates that the hydraulic system has leakage , The leakage is at the low pressure side of the main oil circuit , Stop the machine for treatment .（  ×  ）

73、【 Judgment questions 】 Mine employees should consciously participate in education and training , Master relevant occupational health knowledge .（  √  ）

74、【 Judgment questions 】 The so-called electric shock , It is the accidental contact of human body with electrical equipment 、 Electrified parts of the line or electrified metal shell and other electrified bodies , And an electric current passes through the human body .（  √  ）

75、【 Judgment questions 】 After lifting heavy objects with chain block , If the stay time is long , The bracelet should hang naturally .（  ×  ）

76、【 Judgment questions 】 Rotary encoder , Shielded wire must be used , And must be grounded .（  √  ）

77、【 Judgment questions 】 Traction elevator , Each landing door is equipped with its own door opener .（  ×  ）

78、【 Judgment questions 】 Traction driven elevator hoistway shall be dedicated to elevator , No equipment irrelevant to the elevator shall be installed in the hoistway 、 Cable, etc . However, the installation in the hoistway is allowed to comply with GB7588-2003 Install required heating equipment .（  √  ）

79、【 Judgment questions 】 From the date of the accident 30 Intraday , The number of casualties caused by the accident has changed , A supplementary report should be made in time . Road traffic accidents 、 The fire accident starts from the date of occurrence 7 Intraday , The number of casualties caused by the accident has changed , A supplementary report should be made in time .（  √  ）

80、【 Judgment questions 】 Geared traction machine , Power to . Ann whole Production simulation exam A little . From motor , The power is transmitted to the traction wheel through the reducer .（  √  ）

81、【 Judgment questions 】 The local grounding electrode of underground electrical equipment can be set at the wet place near the electrical equipment .（  √  ）

82、【 Judgment questions 】 Miner's lamp must have reliable short-circuit protection device .（  √  ）

83、【 Judgment questions 】 In the coal face with outburst risk , Loose blasting can be used as an outburst prevention measure .（  √  ）

84、【 Judgment questions 】 citizens 、 Acts of legal persons or other organizations in violation of administrative order , Those who should be given administrative punishment according to law , The administrative organ must ascertain the facts ; The illegal facts are not clear , No administrative penalty shall be imposed .（  √  ）

85、【 Judgment questions 】 Coal mining enterprises can issue coal mine workers' safety manuals for each worker with compensation .（  ×  ）

86、【 Judgment questions 】 Electrical injury refers to the thermal effect of current 、 Harm to human body caused by chemical and mechanical effects ; It mainly refers to electric arc burn 、 Molten metal splashing, scalding, etc .（  √  ）

87、【 Judgment questions 】 Utility elevator , The rated load is small , So the speed can reach 4.0m/s.（  ×  ）

88、【 Judgment questions 】 Step width 600mm The escalator , Generally, each step station 2 people .（  ×  ）

89、【 Judgment questions 】 Explosion proof electrical appliances and devices shall be selected and installed in flammable and explosive places .（  √  ）

90、【 Judgment questions 】 Inspection agency , On the basis that the self inspection of the maintenance unit is qualified , Carry out regular inspection .（  √  ）

91、【 Judgment questions 】 Underground mines must persist in “ If you have doubts, you must explore , Explore first and then dig ” principle , Prepare water exploration equipment “ Safety production mold I plan to take an exam spot through “ meter .（  √  ）

92、【 Judgment questions 】 When the oil buffer is impacted , Through the strong extrusion and injection of oil , Make oil molecules collide violently , Convert kinetic energy into heat , Weakened the impact .（  √  ）

93、【 Judgment questions 】 Production and business operation entities shall provide employees with workplaces with beautiful environment and safety protection measures .（  ×  ）

94、【 Judgment questions 】 The smaller the viscosity of the lubricating oil , The smaller the label value .（  √  ）

95、【 Judgment questions 】 temperature rise , Unit is “K”. Is the operating temperature value （℃）, Minus the temperature value of the original state before startup （℃）.（  √  ）

96、【 Judgment questions 】 Modern elevators , The car is not parked in the unlocking area , Pressing the door open button is invalid . But some elevators , After the lift car leaves the unlocking area , You can still open the door through the open button .（  √  ）

97、【 Judgment questions 】 The lift car should be cleaned frequently , Flush with water gun .（  ×  ）

98、【 Judgment questions 】 Beryllium bronze , There is no elastic , Too soft , Only copper rivets can be made .（  ×  ）

99、【 Judgment questions 】 The sliding block at the lower part of the door leaf is worn , Related to slide cleaning . If necessary, remove the sliding block and wipe the inner wall of the whole sill groove , Its service life will be greatly extended .（  √  ）

100、【 Judgment questions 】 The speed governor is generally installed in the shaft pit , The tensioning device is installed in the machine room .（  ×  ）

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