Related Topics

  Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-20  Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-19  Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-18  Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-17  Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-16  Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-15  Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-14  Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-13  Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-12  Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-11  Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-10  Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields 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page-19  Multiple Choice Question (MCQ) of Measurements page-18  Multiple Choice Question (MCQ) of Measurements page-17  Multiple Choice Question (MCQ) of Measurements page-16  Multiple Choice Question (MCQ) of Measurements page-15  Multiple Choice Question (MCQ) of Measurements page-14  Multiple Choice Question (MCQ) of Measurements page-13  Multiple Choice Question (MCQ) of Measurements page-12  Multiple Choice Question (MCQ) of Measurements page-11  Multiple Choice Question (MCQ) of Measurements page-10  Multiple Choice Question (MCQ) of Measurements page-9  Multiple Choice Question (MCQ) of Measurements page-8  Multiple Choice Question (MCQ) of Measurements page-7  Multiple Choice Question (MCQ) of Measurements page-6  Multiple Choice Question (MCQ) of Measurements page-5  Multiple Choice Question (MCQ) of Measurements page-4  Multiple Choice Question (MCQ) of Measurements page-3  Multiple Choice Question (MCQ) of Measurements page-2  Multiple Choice Question (MCQ) of Measurements page-1  Objective questions and answers or MCQ of Electrical Machines page-22  Objective questions and answers or MCQ of Electrical Machines page-21  Objective questions and answers or MCQ of Electrical Machines page-20  Objective questions and answers or MCQ of Electrical Machines page-19  Objective questions and answers or MCQ of Electrical Machines page-18  Objective questions and answers or MCQ of Electrical Machines page-17  Objective questions and answers or MCQ of Electrical Machines page-16  Objective questions and answers or MCQ of Electrical Machines page-15  Objective questions and answers or MCQ of Electrical Machines page-14  Objective questions and answers or MCQ of Electrical Machines page-13  Objective questions and answers or MCQ of Electrical Machines page-12  Objective questions and answers or MCQ of Electrical Machines page-11  Objective questions and answers or MCQ of Electrical Machines page-10  Objective questions and answers or MCQ of Electrical Machines page-9  Objective questions and answers or MCQ of Electrical Machines page-8  Objective questions and answers or MCQ of Electrical Machines page-7  Objective questions and answers or MCQ of Electrical Machines page-6  Multiple Choice Question (MCQ) of Control Systems page-10  Multiple Choice Question (MCQ) of Control Systems page-9  Multiple Choice Question (MCQ) of Control Systems page-8  Multiple Choice Question (MCQ) of Control Systems page-7  Multiple Choice Question (MCQ) of Control Systems page-6  Multiple Choice Question (MCQ) of Control Systems page-5  Multiple Choice Question (MCQ) of Control Systems page-4  Multiple Choice Question (MCQ) of Control Systems page-3  Multiple Choice Question (MCQ) of Control Systems page-2  Multiple Choice Question (MCQ) of Control Systems page-1  Multiple Choice Question (MCQ) of Protective Relays page-4  Multiple Choice Question (MCQ) of Protective Relays page-3  Multiple Choice Question (MCQ) of Protective Relays page-2  Multiple Choice 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Machines page-10  Multiple Choice Question (MCQ) of D.C. Machines page-9  Multiple Choice Question (MCQ) of D.C. Machines page-8  Multiple Choice Question (MCQ) of D.C. Machines page-7  Multiple Choice Question (MCQ) of D.C. Machines page-6  Multiple Choice Question (MCQ) of D.C. Machines page-5  Multiple Choice Question (MCQ) of D.C. Machines page-4  Multiple Choice Question (MCQ) of D.C. Machines page-3  Multiple Choice Question (MCQ) of D.C. Machines page-2  Multiple Choice Question (MCQ) of D.C. Machines page-1  MCQ of D.C generators page-11  MCQ of D.C generators page-10  MCQ of D.C generators page-9  MCQ of D.C generators page-8  MCQ of D.C generators page-7  MCQ of D.C generators page-6  MCQ of D.C generators page-5

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-generators

Multiple Choice Question (MCQ) of Protective Relays page-1

1.A single phasing relay can be used with

a) 1ɸ motor
b) 2r ɸ motor
c) 3 ɸ motor
d) All of these

Ans: (c)

2. A relay is used to

a) Break the fault current
b) Sense the fault
c) Sense the fault and direct to trip the circuit breaker
d) All of these

Ans: (c)

3. In impedance relay, current element torque should be

a) Equal to voltage element torque
b) Greater than voltage element torque
c) Less than voltage element torque
d) None of these

Ans: (a)

4. Over current fault is most likely in

a) Transformer
b) Overhead line equipment
c) Alternator
d) Motors

Ans: (b)

5. Plug setting of a relay can be changed by changing

a) Air gap
b) Back up stop
c) Number of ampere turns
d) All of these

Ans: (c)

6. Distance relays re generally

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

Ans: (b)

7. Buchholz relay is used to protect against

a) Inter-turn fault
b) External faults
c) Rotor faults
d) Every internal faults

Ans: (d)

8. Instantaneous relay should operate within

a) 0.0001 sec
b) 0.001 sec
c) 0.01 sec
d) 0.1 sec

Ans: (c)

9. MHO relay is inherently a

a) Directional type
b) Non-directional type
c) Unidirectional type
d) None of these

Ans: (a)

10. Basic relay connection requirement is that the relay must operate for

a) Load
b) Internal faults
c) Both (a) and (b)
d) None of these

Ans: (b)

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