NEA LokSewa Test/quiz Question set - 4 || Model question set 4

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Model question set 4

Multiple Choice Question

1. Maximum wind energy available is proportional to:
air density
cube of wind velocity
square of the rotor diameter
all
2. Theoretical maximum efficiency of wind power is about
30%
48%
59%
65%
3. A capacitive load always has a _____ power factor.
leading
lagging
zero
unity
4. What is considered as the most important value of a sine wave?
effective value
peak value
average value
instantaneous value
5. The unit of conductivity is
mho/m
mho/m^2
ohm/m
ohm/m^2
6. An L filter is connected:
in series
in parallel
both a & b
none
7. In case of an L filter, the ripple current increases with
increase with load
decrease in load
increase in the value of L
ripple current never increases
8. A gas filled filament bulbs, the gas used is
oxygen
helium
nitrogen
ozone
9. Power factor is the highest in case of
mercury arc lamp
sodium vapor lamp
tube light
GLS lamp
10. Electrostatic instruments are generally used as
voltmeters
ammeters
wattmeters
watt-hour meters
11. The instrument which is the cheapest for DC measurement is
moving iron
PMMC
hot-wire
electro-dynamo
12. Capital cost per MWh is the highest in case of
steam power plant
diesel engine power plant
hydroelectric power plant
gas turbine power plant
13. Guy wire should have high _____.
tensile strength
conductivity
resistivity
none
14. Which distribution system is more reliable?
ring main system
tree system
radial system
all
15. Which type of insulators are used on 132 KV transmission line?
pin type
disc type
shackle type
pin and shackle type

Answer sheet for all questions

1. Maximum wind energy available is proportional to:
all
2. Theoretical maximum efficiency of wind power is about
59%
3. A capacitive load always has a _____ power factor.
leading
4. What is considered as the most important value of a sine wave?
effective value
5. The unit of conductivity is
mho/m
6. An L filter is connected:
in series
7. In case of an L filter, the ripple current increases with
decrease in load
8. A gas filled filament bulbs, the gas used is
nitrogen
9. Power factor is the highest in case of
GLS lamp
10. Electrostatic instruments are generally used as
voltmeters
11. The instrument which is the cheapest for DC measurement is
moving iron
12. Capital cost per MWh is the highest in case of
hydroelectric power plant
13. Guy wire should have high _____.
tensile strength
14. Which distribution system is more reliable?
ring main system
15. Which type of insulators are used on 132 KV transmission line?
disc type