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Q.1
Load factor of a power station is generally
equal to unity
less than unity
more than unity
equal to zero Diversity factor is always
Q.2
The load factor of domestic load is usually
10 to 15%
30 to 40%
50 to 60%
60 to 70%
Q.3
Which of the following component, in a steam power plant, needs maximum maintenance attention?
Steam turbine
Condenser
Water treatment plant
Boiler
Q.4
A nuclear power plant is invariably used as a
peak load plant
base load plant
stand-by plant
spinning reserve plant
any of the above
Q.5
Different generating stations use following prime movers
Diesel engine
Hydraulic turbine
Gas turbine
Any of the above
Q.6
A load curve indicates
average power used during the period
average kWh (kW) energy consumption during the period
either of the above
none of the above
Q.7
The increased load during summer months is due to
increased business activity
increased water supply
increased use of fans and air conditioners
none of the above
Q.8
The knowledge of diversity factor helps in determining
plant capacity
average load
peak load
kWh generated
none of the above
Q.9
An induction motor has relatively high power factor at
rated r.p.m.
no load
20 percent load
near full load
none of the above
Q.10
Submarines for under water movement, are powered by which of the following ?
Steam accumulators
Air motors
Diesel engines
Batteries
Q.11
When the demand of consumers is not met by a power plant, it will resort to which of the following ?
Load shedding
Power factor improvement at the , generators
Penalising high load consumers by increasing the charges for electricity
Efficient plant operation
Q.12
Which of the following equipment provides fluctuating load?
Exhaust fan
Lathe machine
Welding transformer
All of the above
Q.13
In a load curve the highest point represents
peak demand
average demand
diversified demand
none of the above
Q.14
The effect of electric shock on human body depends on which of the following
current
voltage
duration of contact
all of the above
Q.15
Which of the following generating station has minimum ruiyiing cost ?
Nuclear
Hydro
Thermal
Diesel
Q.16
Load shedding is possible through which of the following ?
Switching of the loads
Frequency reduction
Voltage reduction
Any of the above
Q.17
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.18
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.19
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.20
_______ will offer the least load.
Vacuum cleaner
Television
Hair dryer
Electric shaver
Q.21
Which of the following should be used for extinguishing electrical fires ?
Water
Carbon tetrachloride fire extinguisher
Foam type fire extinguisher
CO2 fire extinguisher
Q.22
The least share of power is provided in India, by which of the following power plants?
Diesel power plants
Thermal power plants
Hydro-electric power plants
Nuclear power plants
Q.23
Following power plant has instant starting
nuclear power plant
hydro power plant
diesel power plant
both (B) and (C)
none of the above
Q.24
Which of the following place is not associated with nuclear power plants in India ?
Narora
Tarapur
Kota
Benglore
Q.25
The expected useful life of an hydroelectric power station is around
15 years
30 years
60 years
100 years
Q.26
Demand factor is defined as
average load/maximum load
maximum demand/connected load
connected load/maximum demand
average load x maximum load
Q.27
Ships are generally powered by
nuclear power plants
hydraulic turbines
diesel engines
steam accumulators
none of the above
Q.28
offers the highest electric load.
Television set
Toaster
Vacuum cleaner
Washing machine
Q.29
_______ industry has the least power consumption per tonne of product.
Vegetable oil
Soap
Sugar
Caustic soda
Q.30
Which plant can never have 100 percent load factor ?
Peak load plant
Base load plant
Nuclear power plant
Hydro electric plant
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