电气英语考试题库及答案.docVIP

电气英语考试题库及答案

一、单项选择题（每题2分，共10题）

1.Whichofthefollowingisaunitofelectricalresistance?

A.Volt

B.Ampere

C.Ohm

D.Watt

答案：C

2.Thesymbolforcurrentinelectricalcircuitsis?

A.V

B.I

C.R

D.P

答案：B

3.InanACcircuit,thefrequencyismeasuredin?

A.Hertz

B.Ohms

C.Volts

D.Amperes

答案：A

4.Whichcomponentisusedtostoreelectricalcharge?

A.Resistor

B.Capacitor

C.Inductor

D.Transistor

答案：B

5.Thepowerformulainelectricalcircuitsis?

A.P=VI

B.P=V/R

C.P=I/R

D.P=V+I

答案：A

6.Adevicethatconvertselectricalenergyintomechanicalenergyiscalled?

A.Generator

B.Motor

C.Transformer

D.Rectifier

答案：B

7.Whatisthecolorcodefora10-ohmresistor?

A.Brown-black-black

B.Brown-black-brown

C.Black-brown-black

D.Black-black-brown

答案：A

8.Inaseriescircuit,thecurrent?

A.Variesacrosscomponents

B.Isthesamethroughout

C.Iszero

D.Dependsontheresistance

答案：B

9.Whichtypeoftransformerhasmoreturnsinthesecondarycoilthanintheprimarycoil?

A.Step-downtransformer

B.Step-uptransformer

C.Isolationtransformer

D.Autotransformer

答案：B

10.Electricalconductivityismeasuredin?

A.Siemenspermeter

B.Ohmspermeter

C.Amperespermeter

D.Voltspermeter

答案：A

二、多项选择题（每题2分，共10题）

1.Whichofthefollowingaretypesofelectricalmotors?

A.DCmotor

B.ACmotor

C.Steppermotor

D.Servomotor

答案：ABCD

2.Componentsusedinelectricalcircuitsinclude?

A.Resistors

B.Capacitors

C.Diodes

D.Transistors

答案：ABCD

3.Electricalsafetymeasuresmayinvolve?

A.Grounding

B.Fusing

C.Insulation

D.Earthing

答案：ABCD

4.Thefollowingareelectricalpowersources?

A.Battery

B.Generator

C.Solarcell

D.Fuelcell

答案：ABCD

5.Inanelectricalsystem,factorsaffectingresistanceare?

A.Lengthoftheconductor

B.Cross-sectionalareaoftheconductor

C.Materialoftheconductor

D.Temperatureoftheconductor

答案：ABCD

6.Whichofthefollowingcanbeusedforelectricalenergystorage?

A.Battery

B.