Economics of power generation

41. A low utilization factor for a plant indicates that

plant is used for stand by purpose only
plant is under maintenance
plant is used for base load only
plant is used for peak load as well as base load

Detailed SolutionA low utilization factor for a plant indicates that

42. offers the highest electric load.

Television set
Toaster
Vacuum cleaner
Washing machine

Detailed Solutionoffers the highest electric load.

43. Which of the following equipment provides fluctuating load?

Exhaust fan
Lathe machine
Welding transformer
All of the above

Detailed SolutionWhich of the following equipment provides fluctuating load?

44. Ships are generally powered by

nuclear power plants
hydraulic turbines
diesel engines
steam accumulators E. none of the above

Detailed SolutionShips are generally powered by

45. Air will not be the working substance in which of the following ?

Closed cycle gas turbine
Open cycle gas turbine
Diesel engine
Petrol engine

Detailed SolutionAir will not be the working substance in which of the following ?

46. Annual depreciation of the plant it proportional to the earning capacity of the plant vide

sinking fund depreciation
straight line depreciation
reducing balances depreciation
none of the above

Detailed SolutionAnnual depreciation of the plant it proportional to the earning capacity of the plant vide

47. In ______ fuel transportation cost is least.

nuclear power plants
diesel generating plants
steam power stations
none of the above

Detailed SolutionIn ______ fuel transportation cost is least.

48. Annual depreciation as per straight line method, is calculated by

the capital cost divided by number of year of life
the capital cost minus the salvage value, is divided by the number of years of life
increasing a uniform sum of money per annum at stipulated rate of interest
none of the above

Detailed SolutionAnnual depreciation as per straight line method, is calculated by

49. An over excited synchronous motor on noload is known as

synchronous condenser
generator
induction motor
alternator

Detailed SolutionAn over excited synchronous motor on noload is known as

50. Power plant having maximum demand more than the installed rated capacity will have utilisation factor

equal to unity
less than unity
more than unity
none of the above

Detailed SolutionPower plant having maximum demand more than the installed rated capacity will have utilisation factor

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