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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-Distribution

Objective Type Question or MCQ of Power Generation page-14

131. Photo-chemical generation is possible if the reverse reaction involves

a) Reduction
b) Oxidation
c) Either (a) or (b) above
d) None of these

Ans: (c)

132. Location of nuclear plant is

a) Dependent upon the geographical factors
b) Independent of the geographical factors
c) Requires large quantity of water
d) Both (b) and (c) above

Ans: (d)

133. Cell having hydrogen and lithium electrodes produce electricity at an operating temperature of

a) -150°C
b) +150°C
c) 0°C
d) 350°C

Ans: (d)

134. The advantage of dc systems over ac systems is

a) No charging currents
b) No skin effect
c) Improved line regulation
d) All of these

Ans: (d)

135. Pilot exciter is used when main exciter is

a) Self excited
b) Induction motor drive
c) Separately excited
d) None of these

Ans: (c)

136. Static voltage regulators use

a) Saturable reactor
b) Integrated circuit
c) Microprocessors
d) Any of these

Ans: (d)

137. Current reactors are used

a) To improve power factor
b) To improve efficiency
c) To reduce the fault level
d) To improve voltage regulation

Ans: (c)

138. Regulating transformers are used in power system to control

a) Load flow
b) Power factor
c) Voltage
d) All of these

Ans: (a)

139. Series reactors usually have

a) Low impedance
b) Low resistance
c) High impedance
d) High resistance

Ans: (b)

140. As per Indian Standard, the permissible range of power supply frequency is

a) 49.5 to 50.5 Hz
b) 49 to 51 Hz
c) 48 to 52 Hz
d) 47.5 to 52.5 Hz

Ans: (d)

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