Electrical Engineering MCQs

Page No. 232

A synchronous condenser is virtually which of the following?


a Induction motor

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bUnder excited synchronous motor

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c Over excited synchronous motor

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dD.C. generator

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Which of the following is the disadvantage due to low power factor?


aPoor voltage regulation

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b Increased transmission losses

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cHigh cost of equipment for a given load

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dAll of the above

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View Answer All of the above

Large capacity generators are invariably___________?


awater cooled

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bnatural air cooled

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c forced air cooled

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dhydrogen cooled

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View Answer hydrogen cooled

For which of the following power plants highly skilled engineers are required for running the plants?


aSolar power plants

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bGas turbine power plants

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cNuclear power plants

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dHydro-electric power plants

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View Answer Nuclear power plants

In a power plant if the maximum demand on the plant is equal to the plant capacity, then


aplant reserve capacity will be zero

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bdiversity factor will be unity

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cload factor will be unity

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dload factor will be nearly 60%

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__________ industry has the least power consumption per ton of product?


aSoap

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b Sugar

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cVegetable oil

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dCaustic soda

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View Answer Vegetable oil

___________is the reserved generating capacity available for service under emergency conditions which is not kept in operation but in working order.


aHot reserve

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bCold reserve

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cSpinning reserve

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dFirm power

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View Answer Cold reserve

The increased load during summer months is due to____________?


aincreased business activity

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bincreased water supply

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c increased use of fans and air conditioners

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dnone of the above

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power plant is expected to have the longest life?


aSteam

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bDiesel

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cHydroelectric

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dAny of the above

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View Answer Hydroelectric

Direct conversion of heat into electrical energy is possible through____________?


a fuel cells

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b solar cells

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cMHD generators

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dnone of the above

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View Answer MHD generators

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