Which of the following areas is most preferred for the location of solar power plants?
AMountain tops
BHigh rainfall zones
CCoastal areas
DHot arid zones
Electrical Engineering · Question Bank
Electrical Power Plant
132 of 195 questions match · page 6 of 7. Answer in your head first, then check the solution.
In a power plant, which of the following expenses is considered to be negligible?
AWages
BTaxes
CInsurance
DPublicity
What is the result of dividing the area under the daily load curve by 24 hours?
AAverage load
BMaximum demand
CLoad factor
DEnergy consumed
What is overall efficiency of a boiler in a thermal power plant?
AAbout 10%
BAbout 25% to 30%
CAbout 40% to 50%
DAbout 70% to 80%
Which of the following statements describes a Pelton wheel?
AIt is an inward flow reaction turbine
BIt is an outward flow impulse turbine
CIt is an inward flow impulse turbine
DIt is a tangential flow impulse turbine
In a power plant, what is the name of the equipment used for pulverizing coal?
ABurner
BStoker
CBall mill
DHopper
Tidal energy mainly utilizes which energy of the water?
APotential energy only
BKinetic energy only
CPotential and kinetic energies
DPotential, kinetic and chemical energies
When can the capacity factor and load factor be identical?
APeak load is equal to the capacity of the plant
BAverage load is half the capacity of the plant
CAverage load is same as peak load
DNone of these
As steam expands in the turbine, which one will happen to the steam?
AIts boiling point increases
BIts specific volume increases
CIts temperature increase
DIts pressure increases
Which one is an essential requirement of peak load plants?
AIt should be small in size
BIt should provide high voltage
CIt should be run at high speed
DIt should be capable of starting quickly
In a “pumped storage” plant, which one is true? 15
AWater is stored by pumping to high pressures
BPower is generated by means of pumps
CWater is reused through the turbines
DDownstream water is pumped upstream during off-peak periods
What type of hydraulic turbine is used for low head and high discharge hydroelectric plant?
AKaplan turbine
BPelton wheel turbine
CFrancis turbine
DAny of these
In a hydro plant, how do you call the channel system that conveys water from the intake to the turbine?
AReservoir
BSurge tank
CTail race
DPenstock
What do you mean by “connected load”?
AIt is part of the total load which always remains connected to the supply lines
BIt is the average load of the consumer during a specific period of usage
CIt is the sum of all the kW rating of the installed electrical loads of a consumer
DIt is the maximum load that a consumer will demand at any time
What do you mean by a low utilization factor for a power plant?
AThe plant is used for base load only
BThe plant is used for stand by purpose only
CThe plant is under maintenance
DThe plant is used for peak load as well as base load
The purpose of a condenser in a power plant is that it condenses the steam coming from which of the following?
ABoiler
BEconomizer
CTurbine
DSuper-heater
Which type of plants will take the least time on starting from cold conditions to full load operations?
AGas turbine plants
BSteam power plants
CNuclear power plants
DHydroelectric plants
A nuclear power plant is basically used as what type of plant?
ABase load plant
BPeak load plant
CStand by plant
DSpinning reserve plant
What is the estimated load for a one tonne air conditioning unit?
A100 to 150 W
B200 to 500 W
C1 kW to 2 kW
D5 kW to 10 kW
What is the usage of graphite in a nuclear power plant?
AFuel
BCoolant
CModerator
DElectrode e eemme
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