Simulated 100 questions and online simulated examination of high voltage electrician examination in 2022

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

2022 High voltage electrician operation certificate examination questions are high voltage electrician review questions theoretical knowledge examination question bank ！2022 Simulation of high voltage electrician examination in 100 Questions and online simulation test are based on the new version of high voltage electrician test question bank . High voltage electrician exercises can accurately grasp the key points of the exam at any time according to the safety production simulation exam .

1、【 Single topic selection 】 The following () Indicates a time relay .（  A  ）

A、KT

B、KS

C、KA

2、【 Single topic selection 】 In the text symbols of direct editing equipment , Belong to 12n The terminal block of the device is programmed as ().（  C  ）

A、12K

B、12LP

C、12D

3、【 Single topic selection 】 110KV And the following line protection measurement and control devices , When the switch is in the jump position and (), Time delay 10 Second report TWJ abnormal .（  A  ）

A、 The line has current

B、 The line has no voltage

C、 The line is under voltage

4、【 Single topic selection 】 FN5-10 The meaning of the model is ().（  B  ）

A、 Rated voltage 10kV Circuit breaker

B、 Rated voltage 10kV Indoor load switch

C、 Rated voltage 10kV Outdoor type load switch

5、【 Single topic selection 】 LQJ-10 Indicates that the rated voltage is () Winding type resin cast insulated current transformer .（  C  ）

A、35kV

B、20kV

C、10kV

6、【 Single topic selection 】 In a general way , The operating voltage of the power system will not exceed under normal conditions ().（  A  ）

A、 Maximum operating voltage

B、 Rated line voltage

C、 Insulation level

7、【 Single topic selection 】 AC high voltage vacuum contactor is suitable for AC system () The occasion of .（  C  ）

A、 The probability of operation is very low

B、 No need to operate frequently

C、 It needs frequent operation

8、【 Single topic selection 】 High voltage equipment occurs 、 In case of conductor grounding fault , The human body shall not approach the grounding fault point outdoors () within .（  B  ）

A、4m

B、8m

C、10m

9、【 Single topic selection 】 In the circuit , Connect one end of two or more resistors to one point , And the other end is all connected to another point , Such a connection is called resistance ().（  B  ）

A、 Series connection

B、 parallel connection

C、 Mixed combination

10、【 Single topic selection 】 The work ticket shall be issued by () Issue .（  A  ）

A、 Work ticket issuer

B、 Person in charge of the work

C、 Work Permit Holder

11、【 Single topic selection 】 It is known that in a circuit with four resistors in series , The current through one of the resistors is 10A, Then the current in the circuit is ()A.（  A  ）

A、10

B、2.5

C、20

12、【 Single topic selection 】 The difference between hot wall vacuum brazing furnace and cold wall vacuum brazing furnace is mainly reflected in () The difference in structure .（  C  ）

A、 Measurement control system

B、 vacuum system

C、 Furnace body

13、【 Single topic selection 】 Number of control cable , The initial letter indicates the ownership of the cable , Such as “Y” It means that the cable belongs to ().（  C  ）

A、330kV Line bay unit

B、220kV Line bay unit

C、110kV Line bay unit

14、【 Single topic selection 】 basis 《 Safe production method 》, When the main person in charge of the production and business operation unit has a production safety accident (), Be detained for not more than 15 days ; Criminal , Criminal responsibility shall be investigated in accordance with the relevant provisions of the criminal law .（  C  ）

A、 Those who do not organize rescue immediately

B、 Absent without leave

C、 Escape

15、【 Single topic selection 】 A unit has purchased “ Three certificates ” and “ One sign ” Safety protection articles , These items must go through () check before acceptance , After necessary inspection of its protection function , Just can use .（  B  ）

A、 Quality inspection department of product manufacturer

B、 The safety production management department of the unit

C、 The work safety supervision and Administration Department of the local government

16、【 Single topic selection 】 When there is a fire in the mine , Whether the main fan continues to operate or reverses the wind , According to the mine fire emergency plan and the specific situation at that time , from () decision .（  C  ）

A、 Rescue team leader

B、 Security Officer

C、 The chief miner

17、【 Single topic selection 】 The representative symbol of TIG welding is ().（  A  ）

A、TIG

B、WIG

C、MIG

18、【 Single topic selection 】 Explosives ( ) Separate isolation and limited storage .（  B  ）

A、 forbid

B、 must

C、 Depending on the circumstances

19、【 Single topic selection 】 The portable grounding wire is used to temporarily connect the equipment or circuit to be repaired () A kind of safety appliance , therefore , It is also called temporary ground wire .（  B  ）

A、 Neutral protection

B、 Short circuit to ground

C、 Grounding protection

20、【 Single topic selection 】 Corrosion resistance of wrought aluminum ().（  C  ）

A、 Bad

B、 commonly

C、 good

21、【 Single topic selection 】 Maintenance status refers to the maintenance status of the equipment (), Moreover, safety measures such as grounding wire have been taken , At this time, the equipment is in the maintenance state .（  C  ）

A、 The switch has been opened

B、 The operating power supply has been disconnected

C、 Both the switch and the knife switch have been opened

22、【 Single topic selection 】《 Safe production method 》 Regulations , The production and business operation unit produces 、 business 、 Store 、 Use dangerous goods , At the end of the year, a special safety management system shall be established 、 Failure to take reliable measures ( ) Or refuse to accept the supervision and administration implemented by the relevant competent departments according to law , Order to make corrections within a time limit ; Overdue and uncorrected , Order to suspend production and business for rectification , It may also impose a fine of not less than 20000 yuan but not more than 100000 yuan ; With serious consequences , Criminal , Criminal responsibility shall be investigated in accordance with the relevant provisions of the criminal law .（  B  ）

A、 Organizational measures

B、 Security measures

C、 Equipment and facilities

23、【 Single topic selection 】 Wear insulating gloves when checking electricity with high-voltage electroscope , And use with the equipment under test () Electroscope .（  A  ）

A、 Corresponding voltage level

B、 Higher voltage level

C、 Lower voltage level

24、【 Single topic selection 】() The revelation to us is : The overall level of safety production does not depend on the advantages of safety work , It depends on the disadvantages .（  A  ）

A、 Short board effect

B、 Butterfly Effect

C、 Heinrich's law

25、【 Single topic selection 】 According to the erection method, power lines can be divided into ().（  C  ）

A、 Transmission and distribution lines

B、 High voltage line and low voltage line

C、 Power lines and overhead power lines

26、【 Single topic selection 】 Usually in a control system , The control device when the machine is running ,() Locked in a closed state .（  C  ）

A、 keep

B、 go back to

C、 Can't

27、【 Single topic selection 】 The setting of action time of power line overcurrent protection adopts the step principle , The time limit is poor Δt Generally set as ().（  B  ）

A、0.3s

B、0.5s

C、0.8s

28、【 Single topic selection 】 In the relay protection device, the current relay is connected to the current transformer ( ).（  B  ）

A、 Primary side

B、 Secondary measurement

C、 Both primary side and secondary side can

29、【 Single topic selection 】 The top management of an enterprise should be responsible for protecting the safety and health of its employees ( ).（  A  ）

A、 Overall responsibility

B、 Partial liability

C、 Direct responsibility

30、【 Single topic selection 】 When the insulating shell of vacuum interrupter is made of glass, the main disadvantage is ().（  B  ）

A、 Processing difficulties

B、 Poor mechanical strength under impact

C、 Not easy to seal with metal

31、【 Single topic selection 】 The physical quantity indicating the strength and direction of the magnetic field is ().（  B  ）

A、 Flux

B、 Magnetic induction intensity

C、 Magnetic line of force

32、【 Single topic selection 】 The workplace of the employer causing occupational disease hazards shall have a reasonable production layout , Comply with hazardous and harmless operations ( ).（  B  ）

A、 Don't separate

B、 Separate

C、 Properly separate

33、【 Single topic selection 】 In the process of emergency rescue , Rescuers should first be familiar with the terrain , Clear evacuation （）; Prepare the signs that should be carried when entering the dangerous area 、 Necessary equipment such as loudspeaker and strong light flashlight .（  B  ）

A、 The number of

B、 Direction

C、 Tools

34、【 Single topic selection 】 The conditions that the personnel participating in the training should meet are ().（  C  ）

A、 Education: senior high school or above

B、 men

C、 Over the age of 18 One year old

35、【 Single topic selection 】 When the high voltage capacitor in operation explodes , First of all ().（  B  ）

A、 Protect the site for disposal

B、 Cut off the connection between the capacitor and the power grid

C、 Fire fighting

36、【 Single topic selection 】 One of the functions of the disconnector is ().（  C  ）

A、 Isolate the electric field

B、 Isolation current

C、 Isolate the power supply

37、【 Single topic selection 】 A unit has purchased “ Three certificates ” and “ One sign ” Safety protection articles , These items must go through () check before acceptance , After necessary inspection of its protection function , Just can use .（  B  ）

A、 Quality inspection department of product manufacturer

B、 The safety production management department of the unit

C、 The work safety supervision and Administration Department of the local government

38、【 Single topic selection 】 The safety production responsibility system formulated by the production and business operation unit needs to meet certain requirements . Among the following items, those that do not belong to the basic requirements for formulating the safety production responsibility system are ().（  A  ）

A、 Report to the work safety supervision and administration department for the record

B、 It must comply with national production safety laws, regulations and policies 、 guidelines

C、 Conform to the unit 、 department 、 team 、 The actual situation of the post

39、【 Single topic selection 】 The material commonly used for the rotor of screw compressor is ( ).（  B  ）

A、 carbon steel

B、 Ductile iron

C、 Grey cast iron

40、【 Single topic selection 】 Installation ( ) It is mainly used to prevent direct lightning , Protect outdoor power transformation and distribution equipment 、 Buildings and structures .（  A  ）

A、 Lightning arrester

B、 Lightning wires

C、 Lightning arrester

41、【 Single topic selection 】 The main person in charge of the production and business operation unit shall have the occupational health knowledge and management ability suitable for the production and business operation activities of the unit ,. Ann Full production Pass the mock exam at one point . And accept () Organize occupational health training .（  A  ）

A、 Work safety supervision and administration department

B、 The health sector

C、 police

42、【 Single topic selection 】 At the workplace , The equipment that must be powered off is :() The safe distance from the normal activity range of the staff during work is less than the specified equipment, and there are no reliable safety measures behind or on both sides of the equipment .（  B  ）

A、 Surrounding live equipment

B、 Equipment to be overhauled

C、 Spare equipment

43、【 Single topic selection 】 Among the following fire extinguishing agents, the most commonly used natural fire extinguishing agent is ( ).（  B  ）

A、 Foam extinguishing agent

B、 water

C、 Dry powder extinguishing agent

44、【 Single topic selection 】 The iron core and shell of the secondary winding of the current transformer must be (), To prevent insulation breakdown of primary and secondary coils , The high pressure on the primary side flows into the secondary side , Endanger personal and equipment safety .（  C  ）

A、 Separate grounding

B、 Ungrounded

C、 Reliable grounding

45、【 Judgment questions 】 The motor overheat protection adopts the maximum short-circuit current to simulate the heating effect of the motor .（  ×  ）

46、【 Judgment questions 】 Low voltage relay is a relay that reflects that the voltage drops to a certain setting value and below, and the dynamic breaking contact changes from open state to closed state .（  √  ）

47、【 Judgment questions 】 The insulation strength of transformer oil itself is lower than that of air , So when the tank is full of oil , It can reduce the insulation strength of the transformer .（  ×  ）

48、【 Judgment questions 】 In step-down substation , A transformer is an electrical device that changes a high voltage to a low voltage .（  √  ）

49、【 Judgment questions 】 Automatic input device for standby power supply , When the working bus voltage disappears , The standby power supply shall be put into operation .（  √  ）

50、【 Judgment questions 】2007 year 11 month 24 Japan 7 when 51 branch , Pusan Road oil and gas filling station leased and operated by a company's Shanghai Sales Branch , LPG storage tank explosion accident occurred during shutdown and maintenance , cause 4 People have been killed 、30 People were injured , Some surrounding buildings are damaged , Direct economic loss 960 Ten thousand yuan . The accident investigation team determined that : The direct cause of the accident is : The liquefied petroleum gas storage tank is not replaced and cleaned with nitrogen after unloading , LPG remains in the tank ; When conducting pipeline air tightness test with compressed air , The pipeline is not separated from the LPG storage tank by blind plate , As a result, compressed air enters the LPG storage tank , The residual LPG in the storage is mixed with compressed air , Form an explosive gas mixture ; Due to illegal electric welding and hot work , The chemical pressure test system causes an explosion , Cause an accident . Based on the above facts , Please judge , The members of the accident investigation team are from the relevant people's government 、 Work safety supervision and administration department 、 Relevant departments responsible for the supervision and administration of work safety 、 Supervisory organ 、 Public security organs and trade unions send people to form , The people's Procuratorate shall also be invited to send people to attend , It is not allowed to hire relevant experts to participate in the investigation .（  ×  ）

51、【 Judgment questions 】《 Classification marks of commonly used hazardous chemicals 》 Regulations , Inflammables in case of moisture refer to those in case of water or moisture , Have a violent chemical reaction , Articles that emit a lot of flammable gas and heat , Some do not require open fire , It can burn or explode .（  √  ）

52、【 Judgment questions 】 Combustible waste materials can be accumulated in the storage area of hazardous chemicals for a short period of time .（  ×  ）

53、【 Judgment questions 】 The three main moving parts of piston compressor are crankshaft 、 even ' Security Pass the production simulation exam at one point ' Rod and piston .（  √  ）

54、【 Judgment questions 】 During the operation and maintenance of the circuit breaker , After the new equipment is put into operation , The inspection cycle should be shortened accordingly .（  √  ）

55、【 Judgment questions 】 A factory produces an organic product , The reaction must be carried out in an autoclave , As the temperature rises ( External heating ), Decomposition of materials in the kettle , The gas shall be vented in time , Keep a certain pressure , Production has been normal and stable . There is a , The operator didn't open the vent valve , The monitor didn't check , After the feeding temperature rises , The pressure in the kettle increases sharply , The explosion-proof facilities on the kettle are out of order , A stream of poisonous gas rushed out from the flange of the autoclave . Several people were poisoned and fainted on the spot , The strong air flow will damage the glass metering pipe of the storage tank containing the solvent , A large amount of solvent flows out , Cause a fire . A series of explosions occurred near several storage tanks , Some solvent flows into rivers from drains , Cause serious water pollution . As described above , Please judge , The glass metering tube is not protected by a metal sleeve .（  √  ）

56、【 Judgment questions 】 The outer flame of the carbonization flame is composed of water vapor, carbon dioxide, oxygen, hydrogen and carbon particles .（  √  ）

57、【 Judgment questions 】 When the height of the ladder is greater than 6m when , Go up 、 in 、 The lower three ends are bound .（  √  ）

58、【 Judgment questions 】 When the system is short circuited or grounded , Through a large short-circuit current , Transformers make a lot of noise .（  √  ）

59、【 Judgment questions 】 The general name of chemicals shall be indicated in Chinese and English respectively in the safety label of hazardous chemicals . The name shall be eye-catching and clear , Directly above the label .（  √  ）

60、【 Judgment questions 】 In violation of the 《 Emergency response law of the people's Republic of China 》 Regulations , Criminal , Investigate civil liability according to law .（  ×  ）

61、【 Judgment questions 】 When there are high-voltage lines and other buildings close to each other , Crane can be used for installation , Other methods can also be used .（  ×  ）

62、【 Judgment questions 】 Before the newly installed capacitor bank is put into operation , Check whether the rated voltage of the capacitor is consistent with the grid voltage ().（  √  ）

63、【 Judgment questions 】 The prevention and control of water damage should be formulated for mines with water bearing collapse columns " Safety student production model quasi Pass the exam at one o'clock " reserve plan .（  √  ）

64、【 Judgment questions 】 Engaged in ore drawing of tailings pond 、 Damming 、 After the full-time operation personnel for the operation of flood drainage and seepage drainage facilities are recruited , It must be trained by the tailings pond enterprise , Before you can work .（  ×  ）

65、【 Judgment questions 】《 Regulations on the safety management of hazardous chemicals 》 Regulations , The Department responsible for the safety supervision and management of hazardous chemicals , To disobey the law 、 Administrative regulations 、 Regulations or national standards 、 Facilities required by industry standards 、 equipment 、 device 、 equipment 、 Means of transport , Order immediate cessation of use .（  √  ）

66、【 Judgment questions 】 The lightning eliminator is based on the electromagnetic induction principle of metal needle electrode , Neutralize the charge of thunder clouds , So as not to cause lightning strike .（  ×  ）

67、【 Judgment questions 】 In case of parallel switching in the user's substation or distribution room , The incoming line protection shall not be stopped by itself .（  ×  ）

68、【 Judgment questions 】 When working at heights , Protective measures can be used as appropriate , The stacked materials can be used at will .（  ×  ）

69、【 Judgment questions 】 Power cable armor and sheath are used to protect the cable from external force damage .（  √  ）

70、【 Judgment questions 】 The construction of transmission lines is divided into preparatory work 、 Construction and installation 、 There are three stages of start-up acceptance .（  √  ）

71、【 Judgment questions 】 Power lines can generally be divided into transmission lines and distribution lines .（  √  ）

72、【 Judgment questions 】 When submerged arc welding , Safety production simulation test 1 spot through ,, AC power supply is mostly used in the occasions of high current submerged arc and serious magnetic bias blowing when DC is adopted .（  √  ）

73、【 Judgment questions 】 Power lines can be divided into overhead power lines and cable power lines according to the erection mode .（  √  ）

74、【 Judgment questions 】 Install static conductive device at the door of hazardous workshop , It can effectively prevent static electricity brought in by the outside world .（  √  ）

75、【 Judgment questions 】 The current transformer shall not be interconnected with the secondary side of the voltage transformer , So as not to cause an approximate open circuit of the current transformer , Danger of high voltage .（  √  ）

76、【 Judgment questions 】 Power quality includes current 、 Quality of frequency and waveform .（  ×  ）

77、【 Judgment questions 】 The equipment used in gas cutting is exactly the same as that of gas welding .（  ×  ）

78、【 Judgment questions 】 There are hazardous factors of occupational diseases listed in the catalogue of occupational diseases in the workplace of the employer , It should be timely 、 Truthfully report the hazardous items to the local fire department , To be supervised .（  ×  ）

79、【 Judgment questions 】 The motor is equipped with overvoltage protection , When the three phase to phase voltages are higher than the setting value , The protection sends an abnormal signal .（  ×  ）

80、【 Judgment questions 】 Hemoglobin has less ability to combine with carbon monoxide than with oxygen .（  ×  ）

81、【 Judgment questions 】 The induced electromotive force generated by the current change of the coil itself is called self induced electromotive force .（  √  ）

82、【 Judgment questions 】 The refrigeration system contains excessive dirt , Will make the filter 、 The throttling device is blocked , formation “ Dirty blockage ”.（  √  ）

83、【 Judgment questions 】 When the bulldozer is working on the inclined working face , Maximum allowable working slope , It can be slightly larger than the gradient that its technical performance can reach .（  ×  ）

84、【 Judgment questions 】 The porcelain bushing of the voltage transformer in operation is broken 、 Severe discharge , Can continue to run .（  ×  ）

85、【 Judgment questions 】 Through the phenomenon of electromagnetic induction, we can know , The faster the flux changes in the coil , The smaller the induced electromotive force .（  ×  ）

86、【 Judgment questions 】 When employees leave the production and business operation unit , I have no right to ask for a copy of my occupational health surveillance file .（  ×  ）

87、【 Judgment questions 】 A door can be opened on the firewall 、 Windows and openings .（  ×  ）

88、【 Judgment questions 】 Poisons enter the human body through certain channels , And it reaches a certain level in the body ‘ Safe production The mock exam is a little through ‘ After dose , To make a difference .（  √  ）

89、【 Judgment questions 】 In the hot season , Increased sensitivity of fireworks and firecracker drugs , In addition, people's emotions are also easy to get upset , Therefore, high temperature season is easy to induce accidents .（  √  ）

90、【 Judgment questions 】 Ohm's law of some circuits is used to analyze the relationship between the current passing through the resistance and the terminal voltage .（  √  ）

91、【 Judgment questions 】 The mining face with the risk of rockburst must be equipped with a compressed air self rescue system , Define the disaster avoidance route in case of rock burst .（  √  ）

92、【 Judgment questions 】 Automatic frequency regulation device can improve the power supply reliability of power system .（  ×  ）

93、【 Judgment questions 】 The superior unit shall guide 、 Supervise and inspect the production and business operation units to do a good job in the filing and registration of emergency plans , Establish an emergency plan filing, registration and filing system .（  ×  ）

94、【 Judgment questions 】 Violation of labor discipline 、 Start mechanical equipment without authorization 、 Change and dismantle without authorization 、 destroy 、 Personnel who misappropriate safety devices and equipment and cause accidents shall be directly or mainly responsible .（  √  ）

95、【 Judgment questions 】35kV And below power lines are generally not equipped with lightning wires along the whole line .(？)（  √  ）

96、【 Judgment questions 】 Use coal, oil, natural gas, etc. as fuel , The chemical energy of fuel combustion is converted into heat energy , Then, with the help of thermal machinery such as steam turbine, the heat energy is changed into mechanical energy , The steam turbine drives the generator to change mechanical energy into electrical energy , This kind of power plant is called thermal power plant .()（  √  ）

97、【 Judgment questions 】 Internal overvoltage is related to various parameters of power grid structure, operation state, power shutdown and transmission operation and other factors .(？)（  √  ）

98、【 Judgment questions 】 In special environment, such as damp and hot rain and snow, and places with explosive or corrosive gases , The mobile electrical equipment used must meet the safety technical requirements of corresponding protection grade .（  √  ）

99、【 Judgment questions 】 No circuit breaker shall be connected between the grounding wire, grounding knife switch and the maintenance equipment ( switch ) Or fuse .()（  √  ）

100、【 Judgment questions 】 In case of serious discharge flashover of porcelain bushing of high voltage capacitor , Just step up surveillance , There is no need to shut down the capacitor immediately .()（  ×  ）

Support the examination questions of precise high-voltage electrician operation 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 .