Q.1
In power plants insurance cover is provided for which of the following ?
  • Unskilled workers only
  • Skilled workers only
  • Equipment only
  • All of the above
Q.2
Following power plant has instant starting
  • nuclear power plant
  • hydro power plant
  • diesel power plant
  • both (B) and (C)
Q.3
An induction motor has relatively high power factor at
  • rated r.p.m.
  • no load
  • 20 percent load
  • near full load
Q.4
The effect of electric shock on human body depends on which of the following
  • current
  • voltage
  • duration of contact
  • all of the above
Q.5
Offers the highest electric load.
  • Television set
  • Toaster
  • Vacuum cleaner
  • Washing machine
Q.6
Which of the following is an advantage of static capacitor for power factor improvement ?
  • Little maintenance cost
  • Ease in installation
  • Low losses
  • All of the above
Q.7
Which of the following is the disadvantage of static capacitor for power factor improvement ?
  • Easily damaged by high voltage
  • Cannot be repaired
  • Short service life
  • All of the above
Q.8
Demand factor is defined as
  • average load/maximum load
  • maximum demand/connected load
  • connected load/maximum demand
  • average load x maximum load
Q.9
_______ will offer the least load.
  • Vacuum cleaner
  • Television
  • Hair dryer
  • Electric shaver
Q.10
Which of the following should be used for extinguishing electrical fires ?
  • Water
  • Carbon tetrachloride fire extinguisher
  • Foam type fire extinguisher
  • CO2 fire extinguisher
Q.11
Ships are generally powered by
  • nuclear power plants
  • hydraulic turbines
  • diesel engines
  • steam accumulators
Q.12
Air will not be the working substance in which of the following ?
  • Closed cycle gas turbine
  • Open cycle gas turbine
  • Diesel engine
  • Petrol engine
Q.13
In a load curve the highest point represents
  • peak demand
  • average demand
  • diversified demand
  • none of the above
Q.14
Which of the following equipment provides fluctuating load?
  • Exhaust fan
  • Lathe machine
  • Welding transformer
  • All of the above
Q.15
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
Q.16
Annual instalment towards depreciation reduces as rate of interest increases with
  • sinking fund depreciation
  • straight line depreciation
  • reducing balances depreciation
  • none of the above
Q.17
Which plant can never havepercent load factor ?
  • Peak load plant
  • Base load plant
  • Nuclear power plant
  • Hydro electric plant
Q.18
_______ industry has the least power consumption per tonne of product.
  • Soap
  • Sugar
  • Vegetable oil
  • Caustic soda
Q.19
The expected useful life of an hydroelectric power station is around
  • 15 years
  • 30 years
  • 60 years
  • 100 years
Q.20
Which of the following place is not associated with nuclear power plants in India ?
  • Narora
  • Tarapur
  • Kota
  • Benglore
Q.21
Annual operating expenditure of a power plant consists of
  • fixed charges
  • semi-fixed charges
  • running charges
  • all of the above
Q.22
The efficiency of a plant is of least concern when it is selected as
  • peak load plant
  • casual run plant
  • either (A) or (B)
  • base load plant
Q.23
Approximate estimation of power demand can be made by
  • Load survey method
  • Statistical methods
  • Mathematical method
  • All of the above
Q.24
Load curve is useful in deciding the
  • operating schedule of generating units
  • sizes of generating units
  • total installed capacity of the plant
  • all of the above
Q.25
The primary reason for low power factor is supply system is due to installation of
  • induction motors
  • synchronous motors
  • single phase motors
  • d.c. motors
Q.26
Which of the following plants ?
  • Base load plants
  • Peak load plants
  • Both (A) and (B)
  • none of the above
Q.27
During load shedding
  • system power factor is changed
  • some loads are switched off
  • system voltage is reduced
  • system frequency is reduced Efficiency is the secondary consideration in
Q.28
Diversity factor has direct effect on the
  • fixed cost of unit generated
  • running cost of unit generated
  • both (A) and (B)
  • neither (A) nor (B)
Q.29
Which of the following power plants need the least period for installation ?
  • Thermal power plant
  • Diesel power plant
  • Nuclear power plant
  • Hydro-electric power plant
Q.30
In two part tariff, variation in load factor will affect
  • fixed charges
  • operating or running charges
  • both (A) and (B)
  • either (A) or (B)
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