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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-19Multiple Choice Question (MCQ) of Illumination page-1Multiple Choice Question (MCQ) of Illumination page-2Multiple Choice Question (MCQ) of Illumination page-3Multiple Choice Question (MCQ) of Illumination page-4Multiple Choice Question (MCQ) of Illumination page-5Multiple Choice Question (MCQ) of Illumination page-6Multiple Choice Question (MCQ) of Illumination page-7Multiple Choice Question (MCQ) of Illumination page-8Multiple Choice Question (MCQ) of Illumination page-9Multiple Choice Question (MCQ) of Illumination page-10Multiple Choice Question (MCQ) of Illumination page-11Multiple Choice Question (MCQ) of Illumination page-12Multiple Choice Question (MCQ) of Illumination page-13Objective Questions & Answers of Circuit Breaker page - 1Objective Questions & Answers of Circuit Breaker page-2Objective Questions & Answers of Circuit Breaker page-3Objective Questions & Answers of Circuit Breaker page-4Objective Questions & Answers of Circuit Breaker page-5Objective Questions & Answers of Circuit Breaker page-6Objective Questions & Answers of Circuit Breaker page-7Objective Questions & Answers of Circuit Breaker page-8Objective Questions & Answers of Circuit Breaker page-9Objective Questions & Answers of Circuit Breaker page-10Objective Questions & Answers of Circuit Breaker page-11Objective Questions & Answers of Circuit Breaker page-12Objective Questions & Answers of Circuit Breaker page-13Multiple Choice Question (MCQ) of Materials page-1Multiple Choice Question (MCQ) of Materials page-2Multiple Choice Question (MCQ) of Materials page-3Multiple Choice Question (MCQ) of Materials page-4Multiple Choice Question (MCQ) of Materials page-5Multiple Choice Question (MCQ) of Materials page-6Multiple Choice Question (MCQ) of Materials page-7Multiple Choice Question (MCQ) of Materials page-8Multiple Choice Question (MCQ) of Materials page-9Multiple Choice Question (MCQ) of Materials page-10Multiple Choice Question (MCQ) of Materials page-11Multiple Choice Question (MCQ) of Materials page-12Multiple Choice Question (MCQ) of Materials page-13Multiple Choice Question (MCQ) of Materials page-14Multiple Choice Question (MCQ) of Materials page-15Multiple Choice Question (MCQ) of Materials page-16Multiple Choice Question (MCQ) of Materials page-17Multiple Choice Question (MCQ) of Materials page-18Multiple Choice Question (MCQ) of Materials page-19Multiple Choice Question (MCQ) of Materials page-20Multiple Choice Question (MCQ) of Materials page-21Multiple Choice Question (MCQ) of Materials page-22Multiple Choice Question (MCQ) of Materials page-23Multiple Choice Question (MCQ) of Materials page-24Multiple Choice Question (MCQ) of Materials page-25Multiple Choice Question (MCQ) of Materials page-26Multiple Choice Question (MCQ) of Materials page-27Multiple Choice Question (MCQ) of Materials page-28Multiple Choice Question (MCQ) of Materials page-29Multiple Choice Question (MCQ) of Materials page-30Multiple Choice Question (MCQ) of Materials page-31Multiple Choice Question (MCQ) of Materials page-32Multiple Choice Question (MCQ) of Materials page-33Multiple Choice Question (MCQ) of Materials page-34Multiple Choice Question (MCQ) of Materials page-35

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

Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-8


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106. The relative permeability of paramagnetic substance is

a) Unity
b) Slightly more than unity
c) Zero
d) Less than unity

Ans: (b)

107. The relative permeability of ferromagnetic material may have a value of several hundred or even several thousand

a) True
b) False

Ans: (a)

108. If A is the vector which of the following statements is true?

a) Div curl A = A
b) Div curl A = curl A
c) Div curl A = 0
d) Div curl A = curl div A

Ans: (c)

109. Which of the following statements is true?

a) The magnetomotive force around a closed path is equal to the conduction current plus electric displacement through any surface bounded by the path
b) The electromotive force around a closed path is equal to the time derivative of the electric displacement through any surface bounded by the path
c) The total electric displacement through the surface enclosing a volume is not equal to total charge within the volume
d) The net magnetic flux emerging through any closed surface is zero

Ans: (d)

110.Voltage across the resistance in R-L-C series circuit at resonance frequency is

a) Much higher than applied voltage
b) Much less than applied voltage
c) Function of value of inductance
d) Function of L/C ratio
e) Equal to applied voltage

Ans: (e)

111. A horseshoe magnet is head vertical with its ends resting on a horizontal board. The plane passing through its poles (assumed to lie at its ends) is in magnetic meridian. If N-pole of the magnet is towards magnetic south of the earth, the neutral point will lie

a) Within the poles of shoe magnet
b) At points along the axial line of the magnet
c) At point along the equatorial line of the magnet
d) At points not lying exactly on the horizontal board

Ans: (c)

112. A horseshoe magnet is far removed from magnetic substance. The magnetic potential will be zero at a point

a) Lying on its axial line
b) Lying on the centre of the line joining the two poles
c) Lying anywhere on its equatorial line
d) On the centre of the magnet

Ans: (c)

113. Three capacitors each of the capacity C are given. The resultant capacity 2C/3 can be obtained by using them

a) All in parallel
b) All in series
c) Two in series and third in parallel across this combination
d) Two in parallel and third in series with this combination

Ans: (d)

114. Two spheres of radii 10 and 20 cm have charges 100 and 200 e.s.u respectively. These are joined by a fine wire. The loss of energy will be

a) 1/2 × (10 × 20)/(10 +10) (200 + 100)2 ergs
b) 1/2 × (10+20)/(10×20) (200 – 100 ) ergs
c) 1/2 × (200 - 100)2 ergs
d) Zero

Ans: (d)

115. What will be the frequency of the following wave

a) 10 KHz
b) 5 KHz
c) 100 KHz
d) 150 KHz

Ans: (c)

116.If the pulse repetition of a square wave is 60 microseconds, the pulse repetition rate will be

a) 5 KHz
b) 16 KHz
c) 10 KHz
d) 15 MHz
e) 15 Hz

Ans: (b)

117. Using the following figure, find the capacitor discharge voltage when the switch is first placed in position A for 4.7 × 10-3 seconds, and then when the switch is placed in position B for 4.7 × 10-3 seconds. Assume that the initial charge on the capacitor is zero.

a) 9.45 volts
b) 15 volts
c) 3.5 volts
d) 6 volts

Ans: (c)

118. The Ohm’s law states that

a) V is proportional to I
b) I is proportional to V
c) V is proportional to IR
d) V is proportional to R

Ans: (a)

119. The electromagnetic radiation can only be emitted or absorbed by a matter in small discrete unity is called

a) Proton
b) Electron
c) Photon
d) Neutron

Ans: (c)

120. If the peak voltage of a wave is 15 V and pulse repetition time is 60 microseconds, with will be the average value of voltage?

a) 10 volts
b) 5 volts approximately
c) 15 volts
d) 7 volts

Ans: (b)


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