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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 B. Economics of Operation page-4


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31. Stringing chart useful for

a) Finding the sag in the conductor.
b) In the design of tower.
c) In the design of insulator string.
d) Finding the distance between the tower.

Ans: (a)

32. For an existing a.c. transmission line the string efficiency is 80. Now of d.c. voltage is supplied for the same set up, the string efficiency will be

a) 80%
b) More than 80%
c) Less than 80%
d) 100%

Ans: (d)

33. Coefficient of reflection for current for an open ended line is

a) 1.0
b) 0.5
c) – 1.0
d) Zero.

Ans: (c)

34. Leakage resistance of a 50 km long cable is 1 MΩ. For a 100 km long cable it will be

a) 1 MΩ
b) 2 MΩ
c) 0.66 MΩ
d) None of the above

Ans: (d)

35. A voltmeter gives 120 oscillations per minute when connected to the rotor. The stator frequency is 50 Hz. The slip of the motor is

a) 2%
b) 4%
c) 5%
d) 2.5%

Ans: (b)

36. Solution of coordination equations takes into account

a) All the system constraints.
b) All the operational constraints.
c) All the system and operation constraints.
d) None of the above.

Ans: (d)

37. Charging reactance of 50 km length of line is 1500 Ω. The charging reactance for 100km length of line will be

a) 1500 Ω
b) 3000 Ω
c) 750 Ω
d) 600 Ω

Ans: (c)

38. In a two plant system, the load is connected at plant no 2. The loss coefficients

a) B11, B12, B22 are nonzero.
b) B11 and B22 are nonzero but B12 is zero.
c) B11 and B12 are nonzero but B22 is zero.
d) B11 is nonzero but B12 and B22 are zero.

Ans: (d)

39. Ferranti effect on long overhead lines is experienced when it is

a) Lightly loaded.
b) On full load at unity p.f.
c) On full load at 0.8 p.f. lag.
d) In all these case.

Ans: (a)

40. In-rush current of a transformer at no load is maximum if the supply voltage is switched on

a) At zero voltage value.
b) At peak voltage value.
c) At V/2 value.
d) At √3/2 value.

Ans: (a)


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