2022 simulation test platform operation of gantry crane driver theory question bank

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

2022 The annual portal crane driver training test questions are the simulated prediction volume of portal crane driver judgment questions ！2022 The simulation test platform operation of portal crane driver theory question bank is compiled according to the latest teaching materials of portal crane driver . The simulated examination questions for portal crane drivers can be practiced in the simulated examination room at any time according to the point of safety production simulated examination .

1、【 Multiple choice 】《 Safety Law of the people's Republic of China on special equipment 》 Regulations , Production of special equipment 、 The user unit shall establish and improve the system of special equipment ( ) and ( ).（  AC  ）

A、 Safety responsibility system

B、 Post safety management system

C、 Energy saving responsibility system

2、【 Multiple choice 】 A brief account of the accident : In the workshop of an equipment Co., Ltd , a 5/20t The bridge crane is lifting a “ Low temperature heater ” Shell （ Weight is 12.9 Tons of ）, During lifting , The steel rope broke suddenly , The object fell and hit the head of Gu, a cold worker , Send for medical treatment , Eventually died of serious injury . Accident investigation : After investigation : The crane is licensed for use , Drivers work with certificates . The lifting process is stable , No exception . The steel rope of the shell is in the wrong position , The binding method is wrong , Cause analysis of hanging accident between single steel rope and hook :( )（  BC  ）

A、 Improper operation by the driver

B、 The binding of crane hooker is not standard

C、 The hoisting commander made a mistake

D、 Missing equipment management

3、【 Multiple choice 】 The main causes of electrical explosion are ：( ).（  ABCD  ）

A、 Electrical failure

B、 Insulation aging

C、 Poor heat dissipation

D、 Improper use

4、【 Multiple choice 】 The maintenance work includes ( ).（  ABCD  ）

A、 cleaning

B、 Fastening

C、 adjustment

D、 lubrication

5、【 Multiple choice 】 Crane maintenance system , Usually perform ( ) principle .（  ABD  ）

A、 planned nature

B、 preventive

C、 integrity

D、 Foresight

6、【 Multiple choice 】 The lifting mechanism of the portal crane is composed of ( ) Other components .（  ABCD  ）

A、 Driving device

B、 Brakes

C、 a wire rope

D、 Winding system

7、【 Single topic selection 】《 Safety Law of the people's Republic of China on special equipment 》 Regulations , The state establishes a recall system for defective special equipment . The special equipment has identity defects endangering safety due to production reasons , The production unit of special equipment immediately ( ), Active recall .（  C  ）

A、 The analysis reason

B、 Identify problems

C、 Stop production

8、【 Single topic selection 】《 Regulations on safety supervision of special equipment 》 Specified in the , The safety technical archives shall include the operation of special equipment ( ) Records and accident records .（  A  ）

A、 fault

B、 change shifts

C、 Work

D、 daily

9、【 Single topic selection 】 When the lifted weight falls to the ground , The crane shall be ( ).（  B  ）

A、 Rapid fall to the ground

B、 Slow landing

10、【 Single topic selection 】 The torsion deformation of the hook exceeds ( ) Should be scrapped .（  A  ）

A、10°

B、12°

C、5°

11、【 Single topic selection 】 The operation of belt tipping actually uses the operating mechanism ( ) Turn over the object .（  B  ）

A、 inertia

B、 Cable-stayed operation

C、 Speed up

12、【 Single topic selection 】 According to the regulation , The wear or corrosion amount of steel wire on the surface of steel wire rope is up to ( ) when , Should be scrapped .（  C  ）

A、7％

B、10％

C、40％

13、【 Single topic selection 】 The establishment of safety production management organization in general enterprises adopts （） In the form of .（  B  ）

A、 System

B、 Hierarchical management

C、 Classification management

D、 Modern humanistic management

14、【 Single topic selection 】 The fuse starts ( ) Protection .（  A  ）

A、 A short circuit

B、 Loss of pressure

C、 Motor overload

15、【 Single topic selection 】 according to 《 Administrative measures for the withdrawal and use of work safety expenses of enterprises 》（ Financial enterprises 〔2012〕16 Number ） Regulations , The safety production cost of construction enterprises is calculated and withdrawn based on the cost of construction and installation projects , Housing construction works shall be carried out according to （）、 The municipal public works shall be carried out according to （） extract .（  A  ）

A、2.0％、1.5％

B、2.0％、2.5％

C、2.5％、1.5％

D、1.5％、1.5％

16、【 Single topic selection 】 Electric motor is a kind of motor that will ( ) Power equipment that converts into mechanical energy and outputs mechanical torque .（  A  ）

A、 electric energy

B、 heat energy

C、 Mechanical energy

17、【 Single topic selection 】 The description of quality control of foundation engineering is incorrect （）.（  C  ）

A、 The foundation trench shall be accepted according to the design and specification requirements

B、 Carry out light dynamic penetration according to the design and specification requirements

C、 For the foundation that does not meet the design requirements , There shall be a foundation treatment scheme confirmed by the survey unit , And there are handling records

D、 The test results of pile foundation bearing capacity meet the design requirements

18、【 Single topic selection 】 Electromagnetic suction cups are generally not allowed to be lifted ( )℃ The above metal objects .（  C  ）

A、100

B、150

C、200

19、【 Single topic selection 】 according to 《 Measures of Guangxi Zhuang Autonomous Region for the administration of dynamic deduction of points for safe production of housing construction and municipal infrastructure projects 》 Regulations , Within one point deduction cycle , construction enterprises 、 Supervision enterprise 、 Project leader 、 After the full-time safety officer and the chief supervision engineer of the project are handled according to the provisions of the measures , Points deducted （）, Do not transfer to the next point deduction cycle .（  C  ）

A、 Cancel

B、 No cancellation

C、 Cancel

D、 Zero clearing

20、【 Single topic selection 】 according to 《 Regulations on the administration of safe production of construction projects 》, The construction unit is included in the list of ____ The cost of safe working environment and safe construction measures , It should be used for the procurement and renewal of construction safety protection appliances and facilities 、 Implementation of safety construction measures 、 Improvement of safety production conditions , It shall not be used for other purposes .（  A  ）

A、 Estimate of construction project

B、 Construction project budget

C、 Construction project budget

D、 Construction project settlement

21、【 Single topic selection 】 The key to the safety of crane operation is ( ).（  B  ）

A、 Maintenance of crane

B、 Operation specification of hoisting mechanism

C、 Operation of traveling mechanism

22、【 Single topic selection 】 The safety inspection of crane rigging includes ( ).（  A  ）

A、 External inspection 、 Use correctness check

B、 Performance test and external inspection

C、 Verification inspection and performance test

D、 model 、 Specification check and use correctness check

23、【 Single topic selection 】 The using unit shall, before the expiration of the validity period of the construction hoisting machinery after passing the inspection （）, Apply for regular inspection .（  A  ）

A、 A month

B、 Two months

C、 Three months

D、 Half a year

24、【 Single topic selection 】 Overload limiter is used to protect the overload when the crane is lifted , At this time, the lifting opportunity ( ).（  B  ）

A、 rang

B、 Cut off the lifting power supply

C、 The indicator light is on

25、【 Single topic selection 】 according to 《 Regulations on the administration of safe production of construction projects 》 Regulations , The period of accidental injury insurance shall be （）.（  C  ）

A、 From the date when the construction unit enters the construction site to the completion acceptance

B、 From the date when the construction unit enters the construction site to the completion acceptance

C、 From the commencement date of the construction project to the completion acceptance

D、 From the commencement date of the construction project to the completion acceptance

26、【 Single topic selection 】 The setting of transverse horizontal bar of single row scaffold shall meet the requirements ____.（  A  ）

A、 One end is fixed on the longitudinal horizontal bar with right angle fastener , Insert the other end into the wall , The insertion depth shall not be less than 180mm

B、 One end is fixed on the longitudinal horizontal bar with a rotating fastener , Insert the other end into the wall , The insertion depth shall not be less than 100mm

C、 One end is fixed on the longitudinal horizontal bar with a rotating fastener , Insert the other end into the wall , The insertion depth shall not be less than 80mm

D、 One end is fixed on the longitudinal horizontal bar with right angle fastener , Insert the other end into the wall , The insertion depth shall not be less than 50mm

27、【 Single topic selection 】 The security technology prevention system is multifunctional , Its main aspects do not include （）（  D  ）

A、 Improve the ability of security

B、 With the deterrent effect of the system

C、 Reduce the occurrence of illegal invasion

D、 The system has no early warning

28、【 Single topic selection 】 The most basic safety management system in construction production is ____.（  A  ）

A、 Safety production responsibility system

B、 Mass prevention and mass governance system

C、 Safety production education and training system

D、 Safety production inspection system

29、【 Single topic selection 】 The operation braking time of portal crane is usually ( ).（  B  ）

A、3-5S

B、6-8S

C、8-10S

30、【 Single topic selection 】 according to 《 Production safety law of the people's Republic of China 》, mine 、 Construction units and production of dangerous goods 、 business 、 Storage unit , A work safety management organization or personnel shall be established （）.（  B  ）

A、 Full time safety production supervisors

B、 Full time safety production management personnel

C、 Full time person in charge of safety production

D、 Full time safety production commander

31、【 Multiple choice 】 install 、 Dismantle construction hoisting machinery and integral lifting scaffold 、 Formwork and other jack up erection facilities , Should （）.（  ADE  ）

A、 Prepare disassembly and assembly plan

B、 Stop the operation of other types of workers

C、 The person in charge of the enterprise shall participate in and supervise

D、 Formulate safety construction measures

E、 On site supervision by professional technicians

32、【 Single topic selection 】 The following statement about installing the counterweight of the hanging basket for work at heights , One of the correct ones is （）.（  A  ）

A、 The counterweight parts shall be stably and reliably placed on the counterweight frame and provided with measures to prevent movement

B、 The counterweight parts can be stacked on the counterweight frame

C、 The counterweight is stably placed on the counterweight frame , Measures to prevent movement are optional

D、 As long as the weight requirements are met , Any object can be used as a counterweight

33、【 Single topic selection 】 according to 《 Safety management regulations for divisional and subdivisional works with high risk 》, For divisional and subdivisional works with greater risk exceeding a certain scale , In organizing and holding an expert demonstration meeting . The following are not the main contents of expert argumentation （）.（  A  ）

A、 Whether relevant professional drawings are complete

B、 Whether the contents of the special plan are complete 、 feasible

C、 Whether the calculation sheet and checking basis of special scheme comply with relevant standards and specifications

D、 Whether the basic conditions of safe construction meet the actual situation of the site

34、【 Single topic selection 】 Scaffold construction requirements , single 、 The bottom step distance of double row scaffold shall not be greater than （）m.（  A  ）

A、2

B、3

C、1.5

D、1.8

35、【 Multiple choice 】 The fire fighting and emergency evacuation plan at the construction site includes （）.（  ABCE  ）

A、 Call the police 、 The procedure of receiving and handling the alarm and the way of communication

B、 Procedures and measures to remedy the initial fire

C、 Procedures and measures for emergency evacuation and rescue

D、 Technical measures for fire prevention at the construction site

E、 Emergency fire fighting disposal organization and emergency disposal responsibilities of personnel at all levels

36、【 Single topic selection 】 Fixed distribution box at the construction site 、 The relative height between the center point of the switch box and the ground can be （）.（  B  ）

A、1.0m

B、1.5m

C、1.8m

D、2.0m

37、【 Multiple choice 】《 Regulations on the administration of safe production of construction projects 》 Regulations , During the survey work, the survey unit , The operating procedures should be strictly implemented , Take measures to ensure （） The safety of the .（  ABC  ）

A、 pipeline

B、 facilities

C、 Surrounding buildings 、 structures

D、 Environmental Science

E、 health

38、【 Single topic selection 】《 Regulations on work safety license 》 The safety production access system of high-risk production enterprises has been established , The following enterprises are not subject to the work safety license system （）.（  D  ）

A、 Mining enterprises

B、 Construction enterprises

C、 Dangerous chemicals 、 Fireworks and firecrackers 、 Civil blasting equipment manufacturer

D、 Transportation enterprises

39、【 Multiple choice 】 When the fastener type steel pipe scaffold is installed , The connection modes of longitudinal horizontal rods are （）.（  CD  ）

A、 Welded connection

B、 Mechanical connection

C、 Butt joint

D、 Lap joint

E、 Socket connection

40、【 Multiple choice 】 The vibratory roller is compared with the static roller , have （） characteristic .（  ABCD  ）

A、 The compaction depth is large

B、 High compactness

C、 Quality

D、 Less compaction times

E、 Low production efficiency

41、【 Single topic selection 】 According to the relevant provisions of the Ministry of housing and urban rural development , New workers of the construction unit , Must accept （） Training and education , After passing the examination , Before you can take up your post .（  A  ）

A、 Three levels of safety

B、 New technology 、 New technology 、 New equipment 、 The new material

C、 Specialized technical work

D、 Special operations

42、【 Single topic selection 】 The following description of the long auger is incorrect （）.（  C  ）

A、 Before the installation , Check and confirm that the drill pipe and its components are free of deformation

B、 When installing drill pipe , Start with the power head , Install section by section

C、 When sticking , The tripping speed should be slowed down . Find out the cause and return to normal speed

D、 When drilling , Do not remove the soil from the spiral by hand

43、【 Single topic selection 】 according to 《 Notice on Further Strengthening the management of major hazard sources in construction safety production 》（ GUI Jianguan [. Ann Full production mold I plan to take an exam Diantong .2014]34 Number ） Regulations , The general contractor and professional subcontractors shall, in accordance with the requirements of the emergency rescue plan for major hazard installations , Provide corresponding personnel and facilities , And organize at least （） rehearse .（  A  ）

A、 once

B、 secondary

C、 Three times

D、 The four time

44、【 Single topic selection 】 The origin of law is a very important concept in law , The origin of law commonly referred to in law refers to the origin in the formal sense , That is, legally regulated （）.（  B  ）

A、 Legislative background

B、 Sources and forms of effectiveness

C、 Legislative basis

D、 Legislative procedure and basis

45、【 Multiple choice 】 Common accidents of boiler include ____.（  ABCDE  ）

A、 Water level accident

B、 Steam and water

C、 Furnace tube blasting

D、 Furnace explosion

E、 Boiler explosion

46、【 Single topic selection 】 Construction enterprises shall strengthen the supervision of safety production conditions of their own enterprises and contracted projects （）, It is found that it does not meet the statutory safety production conditions , Rectification should be carried out immediately , And make self inspection and rectification records .（  C  ）

A、 security management

B、 Daily safety inspection

C、 Daily dynamic inspection

D、 To establish and perfect

47、【 Multiple choice 】 according to 《 Production safety law of the people's Republic of China 》,（） A work safety management organization or full-time work safety management personnel shall be set up .（  ADE  ）

A、 Construction unit

B、 Construction survey unit

C、 Architectural design unit

D、 Road transport unit

E、 The production of dangerous goods 、 business 、 Storage unit

48、【 Single topic selection 】 When the production and business operation unit has an accident , It should be started as soon as possible （）, Organize relevant forces to rescue , And report the accident information and the start-up of emergency response to the work safety supervision and management department and other departments responsible for the work safety supervision and management .（  A  ）

A、 Emergency response

B、 Emergency plan

C、 Emergency rescue

D、 Escalation procedure

49、【 Single topic selection 】 The extension length of the adjustable screw of the adjustable base of the portal steel pipe scaffold shall not be greater than （）.（  A  ）

A、200mm

B、350mm

C、450mm

D、500mm

50、【 Single topic selection 】 Material hoist cage （ hanging basket ） Both sides of the shall be provided with ____ High safety baffle or screen .（  A  ）

A、100cm

B、90cm

C、80cm

D、110cm

51、【 Multiple choice 】 The accident report should include （）.（  ABCE  ）

A、 The time of the accident 、 place

B、 The project 、 Company name

C、 A brief account of the accident

D、 Handling opinions on the person responsible for the accident

E、 Preliminary estimates of casualties and direct economic losses

52、【 Single topic selection 】 according to 《 Technical code for safety of building construction formwork 》（JGJ162） Regulations , From the bottom of the column to the ground （）mm It's about , Along the vertical and horizontal direction, the bottom sweeping rod shall be set according to the procedure of vertical, lower and horizontal .（  C  ）

A、120

B、150

C、200

D、300

53、【 Single topic selection 】 according to 《 Work rules for reporting, investigating and dealing with production safety accidents of housing and municipal engineering 》, The provincial competent department of housing and urban rural construction shall pass （） Submit a written report to the competent department of housing and urban rural construction under the State Council 、 major 、 Major accidents .（  C  ）

A、 WeChat

B、 Telephone

C、 Fax

D、 mail

54、【 Single topic selection 】 The employer violates the provisions of the law on the prevention and control of occupational diseases , Causing major occupational disease inductive accidents or other serious consequences , Criminal , For the directly responsible supervisors and （）, Investigate criminal responsibility according to law .（  A  ）

A、 Directly responsible person

B、 Responsible person

C、 Management

D、 Legal representative

55、【 Single topic selection 】 according to 《 Regulations on the administration of safe production of construction projects 》,（） Accidental injury insurance shall be provided for personnel engaged in dangerous operations on the construction site .（  B  ）

A、 Construction administrative department

B、 Construction unit

C、 People's governments at or above the municipal level

D、 Construction unit

56、【 Single topic selection 】 production 、 business 、 transport 、 Store 、 Use ____ perhaps ' Security production Pass the mock exam at one point ' Disposal of waste hazardous materials , By the relevant competent authorities in accordance with relevant laws 、 Examine and approve the provisions of laws and regulations and national or industrial standards, and implement supervision and administration .（  B  ）

A、 Burning things

B、 Hazardous Substance

C、 Chemicals

D、 Living things

57、【 Single topic selection 】 A construction site according to 《 Construction safety inspection standard 》 score , The full score of scaffold items in the summary table is 10 branch , The actual score of this inspection scoring table is 94 branch , Check that the actual score of this item in the score summary table is （） branch .（  A  ）

A、9.4

B、9.5

C、9

D、8.5

58、【 Multiple choice 】 in the event of （） In case of adverse weather affecting safe operation , The operation of the material elevator should be stopped .（  ABCE  ）

A、 The heavy rain

B、 heavy snow

C、 The fog

D、 frost

E、 The wind speed exceeds 13m/s Strong wind

59、【 Multiple choice 】《 Production safety law of the people's Republic of China 》 Regulations , The labor contract concluded between the production and business operation unit and the employees , It shall specify the relevant safeguards for employees （） The matter of .（  BE  ）

A、 Labor discipline

B、 Labor safety

C、 Operating procedures

D、 Prevent work injury

E、 Prevention of occupational hazards

60、【 Multiple choice 】 The main person in charge of the production and business operation unit shall be responsible for the safety production work of the unit （）.（  ABCDE  ）

A、 Establish and improve the safety production responsibility system of the unit

B、 Implement the safety production responsibility system of the unit

C、 Organize the formulation of safety production rules and regulations and operation procedures of the unit

D、 Implement the safety production rules and regulations and operation procedures of the unit

E、 Organize the formulation and implementation of the safety production education and training plan of the unit

61、【 Multiple choice 】 according to 《 Regulations on the administration of safe production of construction projects 》, The following statement is correct （）" Ann Full production simulation Pass the exam at one o'clock ".（  ACD  ）

A、 The construction unit shall conduct construction according to different construction stages, surrounding environment and seasons 、 Climate change , Take corresponding safety construction measures at the construction site

B、 Temporary suspension of construction on the construction site , The construction unit shall do a good job in site protection , The cost shall be borne by the construction party , Or according to the contract

C、 Before the construction of the construction project , The technical personnel in charge of project management of the construction unit shall report the technical requirements related to safe construction to the construction operation team 、 The operator gives a detailed description , And signed by both parties for confirmation

D、 The construction unit shall transfer the office space at the construction site 、 Living area and operation area are set separately , And keep a safe distance

E、 The mechanical equipment used on the construction site may not have product certificate

62、【 Judgment questions 】《 Safety Law of the people's Republic of China on special equipment 》 Regulations , The production of special equipment does not fall within the scope of supervision .（  ×  ）

63、【 Judgment questions 】《 Safety Law of the people's Republic of China on special equipment 》 Regulations ： The user of special equipment shall comply with the requirements of safety technical specifications , Before the expiration of the validity period of the inspection 2 Put forward regular inspection requirements to the special equipment inspection organization every month .（  ×  ）

64、【 Judgment questions 】 The construction unit shall be responsible for the adjacent buildings that may be damaged due to the construction of the construction project 、 Structures and underground pipelines, etc , Special protective measures should be taken .（  √  ）

65、【 Judgment questions 】 There are three levels of self-care disorder ： I can't take care of myself at all 、 Most of life can't take care of themselves and some of life can't take care of themselves .（  √  ）

66、【 Judgment questions 】《 Regulations on safety supervision of hoisting machinery 》 Specified in the , install 、 reform 、 The maintenance unit shall wait until the expiration of the license 6 A written application for certificate renewal was submitted months ago .（  √  ）

67、【 Judgment questions 】 In case of fire, call the police immediately . Call the police 119.（  √  ）

68、【 Judgment questions 】 The greater the angle between the two slings , The greater the load the sling carries .（  ×  ）

69、【 Judgment questions 】 Employees are aware of the problems existing in the safety production work of their unit , Have the right to criticize 、 Check , Sue , Refuse illegal command and forced risky operation .（  √  ）

70、【 Judgment questions 】 The actions of various mechanisms are uncoordinated during operation , The accident that causes the crane to collide with other obstacles .（  √  ）

71、【 Judgment questions 】06 The thicker the fuse used in the electric box, the better .（  ×  ）

72、【 Judgment questions 】 The brake adjusts the length of the main spring in order to obtain a suitable brake 、 most New analysis 、 Dynamic moment .（  √  ）

73、【 Judgment questions 】 The cross pin of shackle is deformed more than 5％, It should be scrapped .（  √  ）

74、【 Judgment questions 】 During lifting operation , When lifting long objects with a steel wire rope as a lifting rope , As long as the steel wire rope is strong enough, it can be lifted .（  ×  ）

75、【 Judgment questions 】 If the diameter of the pulley used is too small , Steel wire rope is easy to be damaged , But it will not affect the safe use and service life .（  ×  ）

76、【 Judgment questions 】 The fixed pulley is usually installed in the middle of the trolley frame . Because there is a protective cover on it , It's not easy to observe , Check whether the fixed pulley rotates flexibly , Whether the rim is damaged .（  √  ）

77、【 Judgment questions 】 The basic requirement for the driver to operate the crane is to be stable in operation 、 accurate 、 fast 、 Security 、 reasonable .（  √  ）

78、【 Judgment questions 】 When the commander cannot see the driver and load at the same time , Intermediate commanders must be added to transmit signals step by step .（  √  ）

79、【 Judgment questions 】 Humid or particularly humid places , Select sealed waterproof illuminator or open illuminator equipped with waterproof lamp cap . （  √  ）

80、【 Judgment questions 】 Grab is a kind of self fetching device controlled mechanically or electrically , It is mainly used for loading and unloading bulk materials .（  √  ）

81、【 Judgment questions 】 The fuse is mainly used to prevent short circuit .（  ×  ）

82、【 Judgment questions 】 Special equipment operators find potential accidents or other unsafe factors during operation , The person in charge of on-site safety shall immediately report to the person in charge of on-site safety .（  √  ）

83、【 Judgment questions 】 A work safety management agreement shall be signed when the project or equipment is contracted out or leased to a unit or individual without work safety conditions or corresponding qualifications .（  ×  ）

84、【 Judgment questions 】B To decompose the standard horizontally to the edge is to decompose the overall safety goal layer by layer from top to bottom , Clear responsibility , Put the responsibility to people .（  ×  ）

85、【 Judgment questions 】 A work safety management agreement shall be signed when the project or equipment is contracted out or leased to a unit or individual without work safety conditions or corresponding qualifications .（  ×  ）

86、【 Judgment questions 】 The hook stabilizing operation is at the moment when the hook swings to the maximum and has not yet swung back , That is, when the force in the swing direction reaches the maximum , Follow the car in the direction of swinging the hook .（  √  ）

87、【 Judgment questions 】 The function of emergency switch is to quickly cut off the power supply in case of emergency .（  √  ）

88、【 Judgment questions 】 Two or more units with different qualification levels shall implement joint contracting , It shall undertake the contract in accordance with the business license of the unit with high qualification level ‘ Ann Full production simulation test Try a little ‘ engineering （  ×  ）

89、【 Judgment questions 】 When the braking stroke distance of the lifting mechanism is too large , The crane will not work properly , And it's prone to accidents .（  √  ）

90、【 Judgment questions 】 The lifting mechanism shall adopt normally closed brake .（  √  ）

91、【 Judgment questions 】 All places and relevant facilities with dangerous factors on site 、 On the device , Set up obvious safety warning signs .（  ×  ）

92、【 Judgment questions 】 During lifting operation , Large diameter steel wire rope can be used to tie smaller components , Do not use small diameter steel wire rope to bind large objects for hoisting .（  √  ）

93、【 Judgment questions 】 The lifting operation is highly technical , There is great complexity and flexibility in the operation process , A slight mistake , There may be an accident .（  √  ）

94、【 Judgment questions 】 The insulation resistance on the crane shall not be lower than 0.8 Mega ohm .（  √  ）

95、【 Judgment questions 】 The crane brake can be divided into blocks according to the structural characteristics 、 Belt type 、 There are three types of discs .（  √  ）

96、【 Judgment questions 】 The overload limiter is mainly used to prevent the lifting capacity from exceeding the lifting load capacity , To avoid wire rope breakage and hoisting equipment damage .（  √  ）

97、【 Judgment questions 】 The appearance of steel structure shall be free of deformation , No visible cracks , Electric welding shall be free of cracks and missing welding , The connecting bolts and pin shafts of each connecting piece are complete , Fixed reliably .（  √  ）

98、【 Judgment questions 】 The anchoring device is a supplementary device to the automatic anti-skid device , Generally, it shall be used in combination with other anti-skid devices .（  √  ）

99、【 Judgment questions 】 The lifting mechanism of portal crane must be equipped with a limit device to limit the lifting height and falling depth .（  √  ）

100、【 Judgment questions 】 When working at height , It is not allowed to throw sundries and parts on the ground .（  √  ）

Support the examination questions of accurate portal crane drivers in all regions of the country , Support safety certificate , Special operation certificate , Exercises on the question bank of vocational skill appraisal and other types of work .