In a hydroelectric plant a conduit-system for taking water from the intake work to the turbine is known as
A.Dam
B.Surge tank
C.Penstock
D.Reservoir
E.Flume
Category: Energy Conversion Mcqs
The minimum demand on a power station is 10 MW. If the annular load factor is 40%, total evergy generated per year will be
A.35.04 x 108 kWh
B.35.04 x 107 kWh
C.35.04 x 106 kWh
D.35.04 x 105 kWh
Which of the following disadvantages occurs due to low power factor?
A.Greater conductor size
B.Poor voltage regulation
C.Large copper losses
D.Large KVA rating of transformers
E.All of the above
The power factor of a 3 phase induction motor near full load is expected to be around
A.0.8 leading
B.0.8 lagging
C.0.5 lagging
D.0.5 leading
E.0.1 lagging
The capacity of generators being installed in super-thermal power plant is
A.100 MW
B.200 MW
C.220 MW
D.400 MW
E.500 MW
The major constituent of natural gas is
A.Methane
B.Acetylene
C.Carbon monoxide
D.Hydrogen
E.Ammonia
Which of the following material has high scrap value as compared to initial cost?
A.Aluminium
B.Steel
C.Copper
D.Wood
E.Cast iron
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 some intermediate stage
C.Regeneration
D.All of the above
E.None of the above
Which of the following is a petroleum fuel?
A.Benzol
B.Methyl alcohol
C.Ethyl alcohol
D.Naphta
E.None of the above
One BTU is the amount of energy required to raise the temperature of
A.One gram of water through 1?C
B.One gram of water through 1?F
C.One kilogram of water through ?F
D.One pound of water through 1?C
E.One pound of water through 1?F
