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Mechanical Engineering
1000 Power Plant
Quiz 1
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Q.1
What is a power plant?
a) industrial facility that uses primary energy to generate electricity
b) industrial facility that uses secondary energy to generate mechanical energy
c) industrial facility that uses primary energy to generate mechanical energy
d) industrial facility that uses secondary energy to generate electricity
Q.2
Which of the following is a type of power plant?
a) Thermal power plant
b) Nuclear power plant
c) Hydropower plant
d) All of the mentioned
Q.3
What is a hydropower plant?
a) Mechanical energy from the stagnant water currents
b) Electrical energy from the moving water currents
c) Potential energy from the water currents
d) Electrical energy from the moving water currents
Q.4
Which of the following is the cheapest plant in operation and maintenance?
a) Thermal power plant
b) Nuclear power plant
c) Hydropower plant
d) All of the mentioned
Q.5
Where was India’s first nuclear power plant was installed at?
a) Obninsk
b) Tarapur, Maharashtra
c) Boisar, Maharastra
d) None of the mentioned
Q.6
Which of the following kind of energy output is obtained from a ‘Steam Power Plant’?
a) Electricity
b) Thermal energy
c) Sound energy
d) Heat energy
Q.7
Which of the following are the components of a Steam Power Plant?
a) Boiler, Turbine, Condenser, Pump
b) Boiler, Turbine, Pump, Expansion valve
c) Evaporator, Condenser, Boiler, Turbine
d) Evaporator, Condenser, Boiler, Expansion valve
Q.8
Which of the following is also known as Coal used in power plant?
a) coke
b) soft coal
c) charcoal
d) steam coal
Q.9
The net change in internal energy in a steam power plant is?
a) Zero
b) Positive
c) Negative
d) None of the mentioned
Q.10
Which of the following contributes to the improvement of efficiency of Rankine cycle in a Thermal Power Plant?
a) use of high pressures
b) reheating of steam at intermediate stage
c) regeneration use of steam for heating Boiler feed water
d) all of the mentioned
Q.11
The overall efficiency of a power plant is given by __________
a) 3600/AP
b) 3600/NPHR
b) 3600/HHV
c) 3600/NTO
Q.12
Which of the following is an important measure of performance in for a power plant?
a) NTO
b) HHV
c) AP
d) NPHR
Q.13
Why is the deaerator not employed in water-cooled & moderated nuclear power plants?
a) due to regeneration
b) due to reheating
c) due to radioactivity release in degeneration
d) due to emissivity of degeneration
Q.14
What is the maximum content of moisture allowed at the turbine exhaust in the steam power plant?
a) 15 %
b) 30 %
c) 40 %
d) 50 %
Q.15
The steam from steam generator of a nuclear power plant is best described as __________
a) saturated dry steam
b) saturated wet steam
c) supercritical steam
d) superheated steam
Q.16
Efficiency of a power plant is more in summers or winters?
a) same in both
b) depends on the variation
c) summers
d) winters
Q.17
Steam Power Plants are more popular in electric power generation because ___________
a) Work output of turbine is equal to work input to the pump
b) Work output of turbine is very large than work input to the pump
c) Work output of turbine is very small than work input to the pump
d) None of the mentioned
Q.18
Rankine cycle efficiency of a good Steam Power Plant may be in the range of?
a) 35 to 45%
b) 70 to 80%
c) 90 to 95%
d) 15 to 20%
Q.19
By superposing a high-temperature power plant as a topping unit to the steam plant, the energy conversion efficiency achieved is?
a) minimum
b) maximum
c) higher
d) lower
Q.20
In a typical layout of a 215MW reheat power plant, the feed in the boiler is at?
a) 250 degree Centigrade
b) 238 degree Centigrade
c) 280 degree Centigrade
d) 230 degree Centigrade
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