Switchgear Protections MCQ Test

  1. Bus coupler is very essential in arrangement ___.
  2. Magnetic circuit breaker has ______ trip action.
  3. In a circuit breaker the basic problem is to:
  4. What is the use of Air blast circuit breaker?
  5. Which of the following medium is employed for extinction of arc in air circuit breaker ?
  6. A fuse is never inserted in ____.
  7. Fault diverters are basically ____.
  8. By which of the following methods major portion of the heat generated in a H.R.C. fuse is dissipated ?
  9. Ionization in circuit breaker is facilitated by ___.
  10. Arc in a circuit breaker is interrupted at:
  11. What is the use of the delay fuses?
  12. Induction cup relay is operated due to changes in:
  13. Burden of a protective relay is the power ___.
  14. A balanced 3-phase system consists of ____.
Switchgear Protections MCQ

Take Switchgear Protections MCQ Test & Online Quiz to test your Knowledge

Below is the Switchgear Protections MCQ test that checks your basic knowledge of Switchgear Protections. This Switchgear Protections MCQ 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 Switchgear Protections Quiz Button.

  • single bus
  • double bus, double breaker
  • main and transfer bus
  • All of the above
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  • delayed
  • instantaneous
  • both of the above
  • None of the above
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  • maintain the arc
  • emit the ionizing electrons
  • extinguish the arc
  • transmit large power
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  • It is used for over currents.
  • It is used for short duty.
  • It is used for intermittant duty.
  • It is used for repeated duty.
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  • neutral wire
  • phase dine
  • positive of D.C. circuit
  • negative of D.C. circuit
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  • fuses
  • relays
  • fast switches
  • circuit breakers
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  • high temperature
  • increase of mean free path
  • increasing field strength
  • All of the above
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  • zero current
  • maximum current
  • minimum voltage
  • maximum voltage
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  • protection of motors
  • power outlet circuits
  • fluorescent lamps
  • light circuits
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  • current
  • voltage
  • impedance
  • All of the above
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  • required to operate the circuit breaker
  • absorbed by the circuit of relay
  • developed by the relay circuit
  • None of the above
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  • zero sequence currents only
  • zero, negative and positive sequence currents
  • negative and zero sequence currents
  • positive sequence currents only
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  • series
  • parallel
  • either in series or in parallel
  • None of the above
  • current wave only
  • voltage wave only
  • Both A and B
  • power factor wave only
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  • porcelain
  • electrolytic copper
  • aluminium alloy
  • copper tungsten alloy
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