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Objective Type Question or MCQ of Power System Protection page-1Objective Type Question or MCQ of Power System Protection page-2Objective Type Question or MCQ of Power System Protection page-3Objective Type Question or MCQ of Power System Protection page-4Objective Type Question or MCQ of Power System Protection page-5Objective Type Question or MCQ of Power System Protection page-6Objective Type Question or MCQ of Power System Protection page-7Objective Type Question or MCQ of Power System Protection page-8Objective Type Question or MCQ of B. Economics of Operation page-1Objective Type Question or MCQ of B. Economics of Operation page-2Objective Type Question or MCQ of B. Economics of Operation page-3Objective Type Question or MCQ of B. Economics of Operation page-4Objective Type Question or MCQ of B. Economics of Operation page-5Objective Type Question or MCQ of B. Economics of Operation page-6Multiple Choice Question (MCQ) of Circuit Breaker page-1Multiple Choice Question (MCQ) of Circuit Breaker page-2Multiple Choice Question (MCQ) of Circuit Breaker page-3Multiple Choice Question (MCQ) of FuseMultiple Choice Question (MCQ) of Protective Relays page-1Multiple Choice Question (MCQ) of Protective Relays page-2Multiple Choice Question (MCQ) of Protective Relays page-3Multiple Choice Question (MCQ) of Protective Relays page-4Multiple Choice Question (MCQ) of battery page-2Multiple Choice Question (MCQ) of battery page-3Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-1Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-2Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-3Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-4Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-5Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-6Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-7Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-8Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-9Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-10Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-11Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-12Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-13Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-14Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-15Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-16Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-17Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-18Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-19Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-20Multiple Choice Question (MCQ) of battery page-1Multiple Choice Question (MCQ) of Battery page-4Multiple Choice Question (MCQ) of Battery page-5Multiple Choice Question (MCQ) of Battery page-6Multiple Choice Question (MCQ) of Battery page-7Multiple Choice Question (MCQ) of Battery page-8Multiple Choice Question (MCQ) of Battery page-9Multiple Choice Question (MCQ) of Battery page-10Multiple Choice Question (MCQ) of Battery page-11Multiple Choice Question (MCQ) of Battery page-12Multiple Choice Question (MCQ) of Battery page-13Multiple Choice Question (MCQ) of battery page-14Multiple Choice Question (MCQ) of Battery page-15Multiple Choice Question (MCQ) of Battery page-16Multiple Choice Question (MCQ) of Battery page-17Multiple Choice Question (MCQ) of Battery page-18Multiple Choice Question (MCQ) of Battery page-19

Index

SymbolsTransformerRelayPower-SystemBasic-electricalACSR-ConductorCircuit-BreakerInterview-questions-of-Basic-ElectricityInterview-questions-of-transformerInsulatorCurrent-TransformerMCQMCQ-powersystemThermal-power-stationInterview-questions-of-Power-SystemPower-ElectronicsInterview-questions-of-Underground-CableInterview-questions-of-IlluminationIlluminationMCQ-of-ElectronicsMCQ-of-Basic-ElectricalMCQ-of-Transformers MCQ-of-D.C-motor MCQ-of-D.C-generatorsMCQ-Control-SystemMCQ-Measurementsmcq-of-Generation-power-systemMCQ-of-Induction-MotorMCQ-of-Transmission-DistributionMCQ-of-Electrical-MachinesMCQ-of-Alternator-and-Synchronous-MotorsMCQ-Electric-Power

Multiple Choice Question (MCQ) of Protective Relays page-3


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21. Time classification of relays includes

a) Instantaneous relays
b) Definite time lag
c) Inverse time lag
d) All of these

Ans: (d)

22. Directional relays responds to

a) Power
b) Voltage
c) Current
d) Reactance

Ans: (a)

23. Single phase preventers are used for

a) Transmission lines
b) Transformers
c) Motors
d) Underground cables

Ans: (c)

24. In carrier current protection, wave trap is used is for trapping

a) High frequency waves entering in generating units
b) Power frequency waves
c) Both (a) and (b)
d) None of these

Ans: (a)

25. Operating current in relay is

a) A.c. only
b) D.c. only
c) Both (a) and (b)
d) None of these

Ans: (c)

26. For phase fault on long line, which relay is used?

a) MHO relays
b) Reactance relays
c) Impedance relays
d) All of these

Ans: (c)

27. For motor protection, which relay is used?

a) Thermocouple type relays
b) Bimetallic relays
c) Electronic relays
d) All of these

Ans: (d)

28. For protection against synchronizing power surges, which relay is used?

a) Split-phase relays
b) Impedance relays
c) Reactance relays
d) MHO relays

Ans: (d)

29. Pilot wire protection is for

a) Overhead lines
b) Transformer
c) Motors
d) Cables

Ans: (a)

30. Under voltage relays are used for

a) Motors
b) Alternators
c) Bus bars
d) All of these

Ans: (d)


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Related topics :

  1. Objective Type Question or MCQ of Power System Protection page-1
  2. Objective Type Question or MCQ of Power System Protection page-2
  3. Objective Type Question or MCQ of Power System Protection page-3
  4. Objective Type Question or MCQ of Power System Protection page-4
  5. Objective Type Question or MCQ of Power System Protection page-5
  6. Objective Type Question or MCQ of Power System Protection page-6
  7. Objective Type Question or MCQ of Power System Protection page-7
  8. Objective Type Question or MCQ of Power System Protection page-8
  9. Objective Type Question or MCQ of B. Economics of Operation page-1
  10. Objective Type Question or MCQ of B. Economics of Operation page-2
  11. Objective Type Question or MCQ of B. Economics of Operation page-3
  12. Objective Type Question or MCQ of B. Economics of Operation page-4
  13. Objective Type Question or MCQ of B. Economics of Operation page-5
  14. Objective Type Question or MCQ of B. Economics of Operation page-6
  15. Multiple Choice Question (MCQ) of Circuit Breaker page-1
  16. Multiple Choice Question (MCQ) of Circuit Breaker page-2
  17. Multiple Choice Question (MCQ) of Circuit Breaker page-3
  18. Multiple Choice Question (MCQ) of Fuse
  19. Multiple Choice Question (MCQ) of Protective Relays page-1
  20. Multiple Choice Question (MCQ) of Protective Relays page-2
  21. Multiple Choice Question (MCQ) of Protective Relays page-3
  22. Multiple Choice Question (MCQ) of Protective Relays page-4
  23. Multiple Choice Question (MCQ) of battery page-2
  24. Multiple Choice Question (MCQ) of battery page-3
  25. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-1
  26. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-2
  27. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-3
  28. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-4
  29. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-5
  30. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-6
  31. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-7
  32. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-8
  33. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-9
  34. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-10
  35. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-11
  36. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-12
  37. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-13
  38. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-14
  39. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-15
  40. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-16
  41. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-17
  42. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-18
  43. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-19
  44. Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-20
  45. Multiple Choice Question (MCQ) of battery page-1
  46. Multiple Choice Question (MCQ) of Battery page-4
  47. Multiple Choice Question (MCQ) of Battery page-5
  48. Multiple Choice Question (MCQ) of Battery page-6
  49. Multiple Choice Question (MCQ) of Battery page-7
  50. Multiple Choice Question (MCQ) of Battery page-8
  51. Multiple Choice Question (MCQ) of Battery page-9
  52. Multiple Choice Question (MCQ) of Battery page-10
  53. Multiple Choice Question (MCQ) of Battery page-11
  54. Multiple Choice Question (MCQ) of Battery page-12
  55. Multiple Choice Question (MCQ) of Battery page-13
  56. Multiple Choice Question (MCQ) of battery page-14
  57. Multiple Choice Question (MCQ) of Battery page-15
  58. Multiple Choice Question (MCQ) of Battery page-16
  59. Multiple Choice Question (MCQ) of Battery page-17
  60. Multiple Choice Question (MCQ) of Battery page-18
  61. Multiple Choice Question (MCQ) of Battery page-19

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D) Any of these.

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