Electrical Engineering MCQs

Page No. 232

A synchronous condenser is virtually which of the following?


a Induction motor


bUnder excited synchronous motor


c Over excited synchronous motor


dD.C. generator



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


aPoor voltage regulation


b Increased transmission losses


cHigh cost of equipment for a given load


dAll of the above


View Answer All of the above

Large capacity generators are invariably___________?


awater cooled


bnatural air cooled


c forced air cooled


dhydrogen cooled


View Answer hydrogen cooled

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


aSolar power plants


bGas turbine power plants


cNuclear power plants


dHydro-electric power plants


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


bdiversity factor will be unity


cload factor will be unity


dload factor will be nearly 60%



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


aSoap


b Sugar


cVegetable oil


dCaustic soda


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


bCold reserve


cSpinning reserve


dFirm power


View Answer Cold reserve

The increased load during summer months is due to____________?


aincreased business activity


bincreased water supply


c increased use of fans and air conditioners


dnone of the above



power plant is expected to have the longest life?


aSteam


bDiesel


cHydroelectric


dAny of the above


View Answer Hydroelectric

Direct conversion of heat into electrical energy is possible through____________?


a fuel cells


b solar cells


cMHD generators


dnone of the above


View Answer MHD generators

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