2022 electrician (intermediate) recurrent training question bank and answers

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

2022 Electrician （ intermediate ） The operation test question is electrician （ intermediate ） Full truth simulation questions in the examination question bank ！2022 Electrician （ intermediate ） Recurrent training question bank and answer basis （ intermediate ） Compilation of new textbook outline . Electrician （ intermediate ） The test 100 Pass the safety production simulation test and pass the wrong questions at one point .

1、【 Single topic selection 】1 KWh is equivalent to ().（  B  ）

A、1 watts · second

B、1 kw · Hours

C、1 kw · second

D、1 watts · Hours

2、【 Single topic selection 】T610 When the main shaft motor of filing machine jogs , Stator winding connection ().（  A  ）

A、Y shape

B、△ shape

C、 Double star

D、 No requirements

3、【 Single topic selection 】Z37 The rocker arm of the rocker bed rotates by () Realization （  B  ）

A、 Mechanical rotation

B、 Manually pull and rotate

C、 Motor drive

D、 Auto-Control

4、【 Single topic selection 】 The braking methods of three machine asynchronous motor generally include () Categories: .（  A  ）

A、2

B、3

C、4

D、5

5、【 Single topic selection 】 When three-phase transformers operate in parallel , Transformation ratio of three-phase transformer requiring parallel operation ( ), Otherwise, parallel operation is not allowed .（  B  ）

A、 Must be absolutely equal

B、 The error does not exceed ±0.5%

C、 The error does not exceed ±5%

D、 The error does not exceed ±10%

6、【 Single topic selection 】 The load in the three-phase circuit is calculated according to ( ) When connecting , The change of one phase load has an effect on the other two phases .（  B  ）

A、Y Connected to the center line

B、Y No neutral line connected

C、△ join

D、Y Shape or △ shape

7、【 Single topic selection 】 in 、 After the small power transformer is put into operation , Minor repair should be carried out once a year , The overhaul is generally ( ) Once a year .（  C  ）

A、2

B、3

C、5-10

D、15-20

8、【 Single topic selection 】 The test voltage type of AC motor withstand voltage test shall be ()（  B  ）

A、 Direct

B、 Power frequency AC

C、 High frequency AC

D、 pulse current

9、【 Single topic selection 】 The power supply department supplies 10KV The allowable voltage deviation at the receiving end of high-voltage and low-voltage power users up to and including is... Of the rated voltage ().（  D  ）

A、±5%

B、±5%～10%

C、±10%

D、±7%

10、【 Single topic selection 】 When the generator and the system are connected to the grid, the difference between the generator frequency and the system frequency shall not exceed ( ).（  A  ）

A、±3%

B、±1.5%

C、1.0～1.5%

D、0.2～0.5%

11、【 Single topic selection 】 The arrangement structure on the stator of three-phase AC asynchronous motor is exactly the same , Differ from each other in spatial position 120° Three phase winding with electrical angle , Connect... Respectively (), Then a rotating magnetic field will be generated between the air gap between the stator and the rotor .（  D  ）

A、 Direct current

B、 Alternating current (ac)

C、 Pulsating DC

D、 Three phase symmetrical alternating current

12、【 Single topic selection 】 In the analytic expression u＝Umsin(ωt+φ) in ,φ Express ().（  C  ）

A、 frequency

B、 phase

C、 Initial phase angle

D、 Phase difference

13、【 Single topic selection 】 Safety production management , It is aimed at people's safety problems in the process of safe production , Use effective resources , Give play to people's wisdom , Through people's efforts , Carry on about （） Other activities .（  A  ）

A、 Decision making 、 plan 、 Organization and control

B、 plan 、 organization 、 Feedback and control

C、 Decision making 、 The implementation of 、 Plan and improve

D、 evaluation 、 plan 、 Implement and improve

14、【 Single topic selection 】 In the tower crane （） There should be a clear installation position matching the length of the hip frame assembly , And fixed reliably 、 No displacement .（  A  ）

A、 Counterweights and weights

B、 Luffing mechanism

C、 Traveling mechanism

D、 Climbing device

15、【 Single topic selection 】 Base current iB When the value of is large , Easy to cause static working point Q near （）.（  B  ）

A、 Cut off zone

B、 Saturation zone

C、 dead zone

D、 Cross over distortion

16、【 Single topic selection 】《 Regulations on safety supervision of special equipment 》 Specified construction hoisting machinery , Before acceptance, it shall be approved by a qualified （） Pass the supervision and inspection .（  C  ）

A、 Quality audit organization

B、 Product inspection organization

C、 Inspection and testing organization

D、 Supervision and inspection institutions

17、【 Single topic selection 】 As shown in the figure, the logical relationship expressed in the truth table is ( ).（  C  ）

A、 And

B、 or

C、 And non

D、 Or not

18、【 Single topic selection 】 about M7475B Type grinder , The movement of the worktable adopts () control .（  B  ）

A、 Inching

B、 Inching interlock

C、 Self locking

D、 Interlock

19、【 Single topic selection 】 For rated current 200A Of 10KV,GN1-10/200 Type indoor disconnector , During AC voltage withstand test, the post insulator flickers during voltage rise , Cause tripping and breakdown , The breakdown reason is ( ).（  D  ）

A、 Ambient humidity increases

B、 The insulating pull rod is damp

C、 The moving and stationary contacts are dirty

D、 The supporting insulator is damaged

20、【 Single topic selection 】 At present , The basic policy of work safety in China is （）.（  A  ）

A、 Safety first , Prevention first , Comprehensive management

B、 Safety first , Prevention first

C、 Production must be safe , Safety is for production

D、 Safety responsibility is more important than Mount Tai

21、【 Single topic selection 】 The phase sequence table can be used to check the of three-phase power supply ( ).（  A  ）

A、 Phase sequence

B、 phase

C、 frequency

D、 Cycle

22、【 Single topic selection 】 Measuring mechanism of hand-operated megohmmeter , Usually with ( ) Make it .（  C  ）

A、 Ferromagnetic electric system

B、 Electromagnetic system ratio table

C、 Magnetoelectric ratio table

D、 Electric system ratio table

23、【 Single topic selection 】 The method of expanding the range of DC ammeter is ( ).（  B  ）

A、 Series shunt resistor

B、 Shunt resistor

C、 Series voltage dividing resistor

D、 Shunt voltage dividing resistor

24、【 Single topic selection 】 When mapping the wiring diagram of the control circuit of the electrical equipment of the machine tool according to the physical object , All components of the same electrical appliance shall be painted () It's about .（  C  ）

A、3

B、2

C、1

D、 many

25、【 Single topic selection 】 The oxygen bottle is in use , Keep away from open fire （）.（  C  ）

A、 Greater than 10m

B、 Greater than 5m

C、 Less than 10m

D、 Less than 20m

26、【 Single topic selection 】（） The State Council or relevant departments authorized by the State Council shall organize an accident investigation team to conduct investigation .（  C  ）

A、 Major accident

B、 Major accident

C、 Especially serious accident

D、 General accidents

27、【 Single topic selection 】 While repairing the electrical fault of electrical equipment , Also check ( ).（  A  ）

A、 Whether there is machinery 、 Hydraulic part failure

B、 Indicates whether there is a fault in the circuit

C、 Is there a fault in the lighting circuit

D、 Whether the mechanical interlocking device and switching device are faulty

28、【 Single topic selection 】 When testing the unidirectional thyristor with a multimeter ,A－K The forward and reverse resistance between poles should be ( ).（  B  ）

A、 Not much

B、 It's big

C、 Very small

D、 One small one big

29、【 Single topic selection 】 During leakage current test of power cable , Should be under pressure 0.25、0.5、0.75、 and 1.0 When the test voltage is , Stay at every point （） Read the leakage current in minutes .（  B  ）

A、0.5

B、1

C、2

D、3

30、【 Single topic selection 】 Use in attached lifting scaffold 、 Both the lifting and lowering phases should deal with （） Inspection , Only after passing the test can the operation be started .（  D  ）

A、 Lubrication and braking devices

B、 Windproof and leakage proof devices

C、 Peripheral protective devices

D、 Anti falling and anti overturning devices

31、【 Single topic selection 】 Electric energy meter of electric system , The following can be measured （） electric energy .（  D  ）

A、 Single phase alternating current can

B、 Active electric energy

C、 Reactive energy

D、 Direct current energy

32、【 Single topic selection 】 The low-voltage measurement method of the transformation ratio of voltage transformer is connected to the high-voltage winding （） Power Supply , Measure the height separately 、 Voltage of each corresponding phase of low voltage .（  B  ）

A、 High pressure

B、 low pressure

C、 High or low pressure

D、 No regulations

33、【 Single topic selection 】 The watt hour meter is produced by the interaction between the magnetic flux generated by one or several fixed current carrying circuits and the eddy current induced by it （） And there are instructions .（  A  ）

A、 Rotational torque

B、 Braking torque

C、 Reaction moment

D、 Resistance moment

34、【 Single topic selection 】 Because the rescuers 、 Prevent the expansion of the accident and dredge the traffic , Need to move objects at the scene of the accident , Should make （）, Draw the site sketch and make written records , Or take photography 、 Camera and other measures , Keep the important traces on site properly 、 material evidence .（  A  ）

A、 sign

B、 Handle

C、 Protect

D、 monitor

35、【 Single topic selection 】 In the construction of Foundation Pit Support Engineering , The use of cast-in-situ concrete support must be when the concrete strength reaches the design （） above , To excavate the earth below the support .（  C  ）

A、70%

B、75%

C、80%

D、85%

36、【 Single topic selection 】 DC voltage withstand test of cable , After each phase test , The following shall be followed ( ) operation .（  C  ）

A、 First return the voltage regulator to the zero position , Then cut off the main power supply

B、 First return the voltage regulator to the zero position , Then cut off the power supply of the voltage regulator

C、 First return the voltage regulator to the zero position , Cut off the power supply of the voltage regulator , Then cut off the main power supply

D、 First cut off the power supply of the voltage regulator , Then cut off the main power supply

37、【 Single topic selection 】 The reason why DC welding machine can not be welded by AC welding . Ann whole Pass the production simulation exam at one point . The machine replaces , Because the DC welding machine has ( ) The advantages of .（  B  ）

A、 The manufacturing process is simple , Easy to use and control

B、 Arc stability , Weldable carbon copper 、 Alloy steel and non-ferrous metals

C、 Use DC power supply , Operation efficiency and safety

D、 The failure rate is significantly lower than that of AC welding machine

38、【 Single topic selection 】 When handling the transformer transported vertically , The inclination angle shall not exceed ().（  B  ）

A、5°

B、15°

C、30°

D、45°

39、【 Single topic selection 】 Voltage lead current at both ends of pure capacitor circuit ( ).（  B  ）

A、90°

B、—90°

C、45°

D、180°

40、【 Single topic selection 】 Before earth excavation , A certain pre pumping time must be guaranteed , Jet well point or vacuum deep well point shall not be less than （）.（  C  ）

A、10h

B、15h

C、20h

D、25h

41、【 Single topic selection 】 The method for measuring the moisture content of insulating oil is ().（  A  ）

A、GB260 Method for determination of moisture in petroleum products

B、 Visual measurement

C、 evaporation

D、 Wet filtration

42、【 Single topic selection 】 When conducting transformer withstand voltage test , If there is no breakdown in the test , The test voltage of the transformer shall be reduced evenly , Around the 5 Reduce to... Of the test voltage within seconds ()% Or less , Cutting off the power .（  D  ）

A、55

B、15

C、45

D、25

43、【 Single topic selection 】 The following statements about construction hoisting machinery , The right is （）.（  D  ）

A、 The property right Filing Certificate can be handled after the equipment is used

B、 The purchased old tower crane shall have complete operation records and maintenance records within half a year 、 Transformation data

C、 Various safety devices of tower crane must be complete 、 Sensitive and reliable , But some instruments can not

D、 The tower crane manufacturer must hold the special equipment manufacturing license issued by the state

44、【 Single topic selection 】 according to 《 Construction safety inspection standard 》（JGJ59-2011）, Construction management personnel 、 Full time safety officer （） A safety training assessment shall be conducted .（  D  ）

A、 monthly

B、 Quarterly

C、 Every six months

D、 Every year,

45、【 Single topic selection 】（） On 1991 year 12 month 5 By the former Ministry of Construction No 15 The order was issued , It mainly stipulates the general provisions of construction site management of construction projects , The requirements of civilized construction of the construction unit and the environmental management of the construction site of the construction project by the construction unit .（  A  ）

A、《 Regulations on construction site management of construction projects 》

B、《 Regulations on supervision and administration of construction safety production 》

C、《 Regulations on the administration of safe production of construction projects 》

D、《 Regulations on work safety license 》

46、【 Single topic selection 】 The frequency of the test voltage used for the voltage withstand test of the transformer shall be ()Hz.（  A  ）

A、50

B、100

C、1000

D、10000

47、【 Single topic selection 】 To prevent construction dust , Measures to be taken for exposed sites and stacked earthwork at the construction site , barring （）.（  D  ）

A、 Cover

B、 curing

C、 greening

D、 Brighten

48、【 Multiple choice 】 according to 《 Regulations on the administration of safe production of construction projects 》, The following statement is correct ().（  BD  ）

A、 Construction projects that have been approved according to law , The construction unit shall start from the date of approval of the commencement report 30 Intraday , Submit the measures to ensure safe construction to the construction administrative department of the local people's government at or above the county level or other relevant departments where the construction project is located for the record

B、 Construction projects that have been approved according to law , The construction unit shall start from the date of approval of the commencement report 15 Intraday , Submit the measures to ensure safe construction to the competent construction administrative department of the people's government at or above the county level where the construction project is located or other relevant departments for the record

C、 Construction projects that have been approved according to law , The construction unit shall start from the date of approval of the commencement report 40 Intraday , Submit the measures to ensure safe construction to the construction administrative department of the people's government at or above the municipal level where the construction project is located or other relevant departments for the record

D、 The construction unit shall contract out the demolition project to the construction unit with corresponding qualification level

E、 The construction unit may express or imply that the construction unit purchases 、 Use safety protection appliances or mechanical equipment that do not meet the requirements of safe construction

49、【 Multiple choice 】 According to the function principle of the container in the production process, it can be divided into （）.（  ACDE  ）

A、 Reaction vessel

B、 Containers for toxic media

C、 Stored containers

D、 Heat exchanger

E、 Separate the container

50、【 Single topic selection 】 Of concrete mixer （） It is an important basis for selecting mixer .（  C  ）

A、 Feed capacity

B、 Loading capacity

C、 Discharge capacity

D、 Geometric capacity

51、【 Single topic selection 】 Safety protection of the bidder 、 Quotation for civilized construction measures , It shall not be less than... Of the total cost required by the local project cost management organization to determine the rate （）%.（  D  ）

A、60

B、70

C、80

D、90

52、【 Single topic selection 】 When the construction enterprise prepares the construction organization design , For engineering projects with strong professionalism ,（）（  D  ）

A、 There is no need to prepare special safety construction organization design

B、 Decide whether to prepare special safety construction organization design according to the situation

C、 Decide whether to take safety technical measures according to the situation

D、 Special safety construction organization design shall be prepared , And take safety technical measures

53、【 Single topic selection 】《 Fire law 》 Regulations , Conduct （） And operators of automatic fire fighting system , Must have a license to work , And strictly abide by the fire safety operation procedures .（  B  ）

A、 carpentry

B、 Electric welding 、 Gas welding

C、 paint

D、 waterproof

54、【 Single topic selection 】 During multi tower operation , Tower crane in high position （ The hook rises to the highest point ） The vertical distance from the lower tower crane shall not be less than in any case （）.（  C  ）

A、1m

B、1.5m

C、2m

D、3m

55、【 Single topic selection 】 The construction unit shall according to the scale of the construction project 、 Key points of on-site fire safety management , Establish fire safety management organization and voluntary fire protection organization at the construction site , Fire safety shall be determined （） And fire safety manager , At the same time, the fire safety management responsibilities of relevant personnel shall be implemented .（  B  ）

A、 Those responsible

B、 person in charge

C、 Supervisor

D、 liaison man

56、【 Multiple choice 】 Pipe jacking construction mainly includes （）（  ABCD  ）

A、 Operation pit setting 、 Back construction and guide rail laying

B、 Page in equipment layout 、 Work management preparation

C、 Precipitation and drainage 、 Jacking

D、 Excavation and excavation 、 Lower pipe and interface

E、 Construction disclosure

57、【 Single topic selection 】《 site （ factory ） Supervision Regulations on safety technology of special motor vehicles in 》 Specified in the , Before the car is put into use for the first time , towards （） The local special equipment inspection organization applies for the first inspection .（  D  ）

A、 User

B、 Sales unit

C、 Manufacturer

D、 Property unit

58、【 Multiple choice 】 The types of safety education and training shall include （） etc. .（  ABCD  ）

A、 Pre job education

B、 Daily education

C、 Annual continuing education

D、 Preliminary examination of various certificates 、 Review training

E、 Ideological Education

59、【 Single topic selection 】 Operators of vertical transportation machinery 、 Installation and disassembly workers 、 Blasting operators 、 Crane signalman 、 Special operators such as climbing and erection operators , It must be approved in accordance with the relevant provisions of the state （）, After obtaining the qualification certificate for special operation , They can only take up their posts . Ann Whole life Production simulation exam A little . Homework .（  B  ）

A、 Tertiary education

B、 Special safety operation training

C、 Safety knowledge training

D、 Safety technical disclosure

60、【 Single topic selection 】 according to 《 Interim provisions of Guangxi Zhuang Autonomous Region on construction safety supervision 》 Regulations , Comply with the issuance （） New construction of all kinds of construction projects under various conditions 、 The expansion of the 、 reconstruction 、 Of demolition activities and construction safety supervision , This regulation must be observed .（  A  ）

A、 Construction permit

B、 The business license

C、 Commencement permit

D、 Safety production license

61、【 Single topic selection 】 Do not store more than... Indoors （） Kilograms of gasoline .（  C  ）

A、1.5

B、1

C、0.5

D、2

62、【 Multiple choice 】 The following statements about the safety management of construction lifting facilities are correct （）.（  ABCDE  ）

A、 The construction unit engaged in the installation of attached lifting scaffolds shall obtain a work safety license

B、 install 、 Before dismantling the construction lifting facilities , The installation and disassembly scheme shall be prepared

C、 Construction lifting facilities shall be inspected regularly

D、 Construction lifting facilities must be managed by special personnel

E、 Establish data files for construction lifting facilities , It shall be scrapped in time in accordance with relevant national regulations

63、【 Single topic selection 】 High formwork construction 、 Deep foundation pit and trench excavation 、（）、 During the construction of attached scaffold lifting and other works , Personnel in key positions must be on duty , No leave .（  B  ）

A、 Reinforcement installation

B、 Disassembly and assembly of tower crane

C、 Formwork removal

D、 Concrete pouring

64、【 Multiple choice 】 Masonry works in rainy season ‘ newest Explain Analysis ‘ Technical measures for construction safety （）（  ABCDE  ）

A、 The blocks shall be stacked together in rainy season

B、 The independent wall and windward wall shall be provided with temporary support protection , To avoid wall falling accidents

C、 Internal and external walls shall be built at the same time as possible , The connection between corner and T-shaped wall shall keep up with each other at the same time

D、 Wall between windows with poor stability 、 The brick column shall be poured with ring beam or added with temporary support in time , To enhance the stability of the wall

E、 Continue construction after the rain , The verticality of the completed masonry shall be rechecked

65、【 Multiple choice 】 according to 《 The Department of housing and urban rural development of Guangxi Zhuang Autonomous Region has implemented 〈 Safety management regulations for divisional and subdivisional works with high risk 〉 Implementation rules 》, The rights enjoyed by experts include （）.（  ABDE  ）

A、 Serve as a special scheme demonstration expert

B、 Demonstrate the special scheme , Put forward argumentation opinions , Without the intervention of any unit or individual

C、 Entrust others to demonstrate the scheme

D、 Remuneration for receiving labor consultation and special inspection

E、 Consult relevant technical data of the project according to the needs of demonstration

66、【 Multiple choice 】《 Production safety law of the people's Republic of China 》 Regulations , The production and business operation entity commits one of the following acts ：（）, Order to make corrections within a time limit , A fine of less than 50000 yuan can be imposed ; Failing to correct within the time limit , Order to suspend production and business for rectification , And impose a fine of not less than 50000 yuan but not more than 100000 yuan , The person in charge and other persons directly responsible shall be fined not less than 10000 yuan but not more than 20000 yuan .（  AD  ）

A、 The production of dangerous goods 、 business 、 Storage units and mines 、 Metal smelting 、 Construction 、 The main person in charge and safety production management personnel of the road transportation unit fail to pass the examination in accordance with the regulations

B、 Failure to inspect the mine as required 、 Metal smelting construction projects or for production 、 Store 、 Safety evaluation of construction projects for loading and unloading dangerous goods

C、 mine 、 Metal smelting construction projects or for production 、 Before the construction project for storing dangerous goods is completed and put into production or use , The safety facilities have not passed the acceptance

D、 Failing to truthfully record the work safety education and training

E、 Not in the production and operation sites and relevant facilities with major risk factors 、 Obvious safety warning signs shall be set on the equipment

67、【 Multiple choice 】 The fields that ergonomics can serve include （）.（  ABCDE  ）

A、 A safety helmet 、 Design of safety rope and other labor protection equipment

B、 Design of living facilities for the elderly

C、 Vibration and noise control of working environment

D、 Choose safety 、 Easy to use tools and equipment

E、 Make the operation room of construction machinery comfortable and safe

68、【 Multiple choice 】《 Construction law 》 It is stipulated that construction enterprises should abide by the laws on environmental protection and production safety 、 The regulations , Take measures to control and deal with various problems on the construction site （） Measures for environmental pollution and harm .（  ABCDE  ）

A、 Dust

B、 Waste water

C、 waste gas

D、 noise 、 Vibration

E、 Solid waste

69、【 Multiple choice 】 The labor protection articles that the tower crane operator should be equipped with are （）.（  CDE  ）

A、 Insulating shoes

B、 Protective mask

C、 antiskid shoe

D、 Work gloves

E、 Flexible and tight work clothes

70、【 Judgment questions 】 National comprehensive fire rescue team 、 The full-time fire brigade put out the fire 、 Emergency rescue , Only appropriate labor costs can be charged .（  ×  ）

71、【 Judgment questions 】 The insurance premium shall be included in the cost of construction and installation works , Paid by the construction enterprise , It is not allowed to apportion .（  √  ）

72、【 Judgment questions 】 When the weldment is temporarily fixed, it can be carried out by the personnel who cooperate with the welder .()（  ×  ）

73、【 Judgment questions 】 Mechanical transmission has the advantages of simple structure 、 Work reliably 、 The price is low 、 Light weight 、 High transmission efficiency .（）（  √  ）

74、【 Judgment questions 】 A fire accident at a construction site did not cause casualties , But 3000 Direct property loss of 10000 yuan , Then the fire is a general fire accident .（  ×  ）

75、【 Judgment questions 】 The purpose of lubrication is to reduce the wear of mechanical parts , Reduce kinetic energy consumption , Extend service life .（  √  ）

76、【 Judgment questions 】()10（6）KV High voltage distribution line ’ Safety production simulation test Give it a try Diantong ’ The pole top of double circuit line is arranged in triangle 、 Level plus level 、 Three vertical .（  √  ）

77、【 Judgment questions 】() The power factor meter can not only measure the power factor value of the load circuit , And it can indicate whether the load is inductive load or capacitive load .（  √  ）

78、【 Judgment questions 】() When the single arm bridge is balanced , The product of the resistance on two opposite bridge arms is equal to the product of the resistance on the other two opposite bridge arms .（  √  ）

79、【 Judgment questions 】() One of the conditions for the selection of conductor section is the economic current density .（  √  ）

80、【 Judgment questions 】 The construction unit may designate the construction materials to be purchased by the contractor 、 Building components, fittings and equipment , Or specify the manufacturer 、 supplier .（  ×  ）

81、【 Judgment questions 】 Construction project bidding , The bids shall be evaluated and compared in accordance with the bid evaluation standards and procedures specified in the bidding documents , Among the bidders with corresponding qualifications , The bid winner shall be selected according to the principle of lowest quotation .（）（  ×  ）

82、【 Judgment questions 】 Enterprises must provide employees with labor protection articles that meet national or industrial standards , And supervise 、 Education practitioners wear it according to the use rules 、 Use .（  √  ）

83、【 Judgment questions 】 When using steel wire rope as the wind rope of material hoist , The diameter shall not be less than 9.3mm.（）（  ×  ）

84、【 Judgment questions 】() The function of grounding is for safety , Prevent electric shock due to insulation damage of electrical equipment .（  ×  ）

85、【 Judgment questions 】 No water is allowed to extinguish oil fires , Carbon dioxide fire extinguishers can be used .（）（  √  ）

86、【 Judgment questions 】 The forward moving forklift belongs to the field vehicle category .（）（  √  ）

87、【 Judgment questions 】 The person in charge of safety production of the construction unit has not received safety education and training or failed to pass the examination , Do not engage in relevant work .（  √  ）

88、【 Judgment questions 】() The leakage current test of power cable can be carried out simultaneously with DC withstand voltage test .（  √  ）

89、【 Judgment questions 】() DC withstand voltage test is completed , After cutting off the high-voltage power supply , The test object shall be discharged directly to the ground .（  ×  ）

90、【 Judgment questions 】 Architectural design sheet “ Safety production simulation The test One Diantong “ Weihe construction enterprise's requirements for reducing the project quality raised by the construction unit in violation of the regulations , You can be excused .（  ×  ）

91、【 Judgment questions 】 Safety technical status of wheels and tires , We should pay the necessary attention to .（）（  √  ）

92、【 Judgment questions 】 Programmable controller has complex logic operation function , Relay control cannot be realized .（  √  ）

93、【 Judgment questions 】 The rated current of ordinary thyristor is expressed by the effective value of power frequency main line current （）.（  ×  ）

94、【 Judgment questions 】 There is a squirrel dragon three-phase asynchronous motor with rated torque TN by 263.45 cattle · Meter overload factor λ=2.2 Its maximum torque Tm by 579.59 cattle · rice .（  √  ）

95、【 Judgment questions 】 Internal defects caused by welding , It can only be found through nondestructive testing and other methods .（  √  ）

96、【 Judgment questions 】 Internal defects caused by welding , It can only be found through nondestructive testing and other methods （  √  ）

97、【 Judgment questions 】 The unit of measure of electric energy is watt .（  ×  ）

98、【 Judgment questions 】 The excitation mode of DC motor can be divided into other excitation 、 Shunt excitation 、 Series excitation and compound excitation .（  √  ）

99、【 Judgment questions 】 External clearance of tubular arrester , It must be installed firmly , It shall be installed vertically .（  ×  ）

100、【 Judgment questions 】 In the operating insulating oil , It is not allowed to contain any trace of water .（  ×  ）

Support precision electricians in all regions of the country （ intermediate ） Examination questions , Support safety certificate , Special operation certificate , Exercises on the question bank of vocational skill appraisal and other types of work .