Electrical Engineering MCQs

Page No. 226

Load shedding is possible through which of the following?


aSwitching of the loads

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b Frequency reduction

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cVoltage reduction

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d Any of the above

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View Answer Any of the above

Which of the following devices may be used to provide protection against lightening over voltages?


aHorn gaps

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bRod gaps

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c Surge absorbers

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dAll of the above

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View Answer All of the above

The effect of electric shock on human body depends on which of the following?


acurrent

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bvoltage

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cduration of contact

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dall of the above

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View Answer all of the above

Which of the following component, in a steam power plant, needs maximum maintenance attention?


aSteam turbine

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bCondenser

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cWater treatment plant

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dBoiler

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View Answer Boiler

Which of the following plants is almost inevitably used as base load plant?


aDiesel engine plant

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b Gas turbine plant

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cNuclear power plant

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dPumped storage plant

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View Answer Nuclear power plant

An over excited synchronous motor on no load is known as__________?


asynchronous condenser

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b generator

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cinduction motor

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dalternator

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View Answer synchronous condenser

Which of the following source of power is least reliable?


aSolar energy

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b Geothermal power

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cWind power

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diMHD

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View Answer iMHD

Which of the following is not a method for estimating depreciation charges?


aSinking fund method

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bStraight line method

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cDiminishing value method

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d Halsey’s 50—50 formula

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For a diesel generating station the useful life is expected to be around_________Years?


a15 to 20 years

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b20 to 50 years

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c50 to 75 years

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d75 to 100 years

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View Answer 15 to 20 years

Which of the following is not necessarily an advantage of interconnecting various power stations?


a Improved frequency of power supplied

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bReduction in total installed capacity

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cIncreased reliability

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dEconomy in operation of plants

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