17th
Apr
Maintenance & Testing of Electrical Equipments MCQ

Maintenance & Testing of Electrical Equipments MCQ

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  • 17th Apr, 2021
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Take Maintenance & Testing of Electrical Equipments MCQ Test & Online Quiz to test your Knowledge

Below is the Maintenance & Testing of Electrical Equipments MCQ test that checks your basic knowledge of Maintenance & Testing of Electrical Equipments. This Maintenance & Testing of Electrical Equipments Test contains 20 Multiple Choice Questions. You have to select the right answer to the question. Finally, you can also take the Online Quiz from the Take Maintenance & Testing of Electrical Equipments Quiz Button.

Maintenance & Testing of Electrical Equipments MCQ Test

1) Which material is used for the manufacture of brushes in DC motors?

  • A. Lead
  • B.Copper
  • C.Graphite
  • D.All of these

2) Which among these devices are used to protect low voltage induction motor?

  • A. HRC fuse
  • B.Contactor starter
  • C.Thermal overload relay
  • D.All of these

3) Tap changing transformers are used for..........

  • A. stepping up the voltage
  • B.stepping down the voltage
  • C.both stepping up and stepping down the voltage
  • D.supplying low voltage current for instruments

4) An ammeter is a …………….. instrument.

  • A. Absolute instrument
  • B.Secondary instrument
  • C.Recording instrument
  • D.Integrating instrument

5) For what voltage is Twin conductor bundle used in India?

  • A. 220 kV
  • B.330 kV
  • C.500 kV
  • D.750 kV

6) Which of the following machine will be preferred to charge the batteries?

  • A. Series motor
  • B.Shunt generator
  • C.Series generator
  • D.Series generator

7) Which of the following motors is used in ceiling fan?

  • A. Universal motor
  • B.Induction motor
  • C.Series motor
  • D.Synchronous motor

8) Electrostatic voltmeter instruments are suitable for ……………

  • A. AC work only
  • B.DC work only
  • C.Both AC and DC work
  • D.None of these

9) The failure % of electric motor is higher due to.............

  • A. Insulation failure
  • B.Over loading
  • C.Bearing failure
  • D.None

10) Which of the following is usually not the generating voltage ?

  • A. 6.6 kV
  • B.9.9 kV
  • C.11kV
  • D.13.2 kV

11) What rated voltage is the shielded cable provided in a low voltage system?

  • A. Rated voltage < 1kV
  • B.Rated voltage > 1 kV
  • C.Rated voltage < 500V
  • D.None of them

12) What is meant by equalizer bus?

  • A. The bus connecting series fields in parallel
  • B.The bus connecting shunt fields in series
  • C.The bus connecting series fields in series
  • D.The bus connecting shunt fields in parallel

13) Which among these is the application of universal motors?

  • A. Fans
  • B.Washing machines
  • C.Hair dryers
  • D.Vacuum cleaners

14) Which device is connected in series?

  • A. RC surge suppressors
  • B.Smoothing reactors
  • C.Metal oxide veristors
  • D.Static balancer

15) Which of the amongst is the first equipment placed in the uninterrupted power supply (UPS)?

  • A. Inverter
  • B.Battery
  • C.Rectifier
  • D.Any of these

16) Which material has a lower dielectric strength at 50 Hz? - Published on 30 Sep 15 a.

  • A. Bakelite
  • B.Glass
  • C.Air
  • D.Dielectric oil

17) Which material is used for the manufacture of brushes in DC motors?

  • A. Graphite
  • B.Lead
  • C.Copper
  • D.All of these

18) Which among these is a type test?

  • A. Bending test
  • B.Drainage test
  • C.Dielectric security test
  • D.All of these

19) Which part of the tower is buried in the ground?

  • A. Anchor
  • B.Guy wire
  • C.Braces
  • D.Strut inclined support

20) What is the expression for the amplitude of the reflected wave?

  • A. Ir = [ (R + Z) / (R - Z) ] It
  • B.Ir = [ (R - Z) / Z ] It
  • C.Ir = [ (R - Z) / (R + Z) ] It
  • D.Ir = [ (R + Z) / Z ] It

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