Power System - I (3140914) MCQs

MCQs of Introduction to Wind and Solar Power Generation

Showing 121 to 130 out of 137 Questions
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121.
During the night, the direction of wind reverses from land to sea surface because the
(a) Land surface cools faster than water
(b) Water surface cools faster than land
(c) Water surface remains hot
(d) None of above
Answer:

Option (a)

122.
Air density at standard condition at sea level is about
(a) 1.855 kg/m3
(b) 2.555 kg/m3
(c) 1.226 kg/m3
(d) 3.267 kg/m3
Answer:

Option (c)

123.
Horizontal axis rotor in a windmill is made of
(a) Only lift devices
(b) Only drag devices
(c) Either (a) or (b)
(d) None of above
Answer:

Option (c)

124.
The main disadvantage of wind power plant is
(a) Available only in coastal areas
(b) Noisy in operation
(c) Requires large land area
(d) Less capacity utilization
Answer:

Option (d)

125.
Wind energy conversion devices based on drag force
(a) Move faster than wind
(b) Move slower than wind
(c) Move with equal velocity as wind
(d) Do not depend on the velocity of wind
Answer:

Option (b)

126.
Photo voltaic cell converts
(a) Chemical energy to electrical energy
(b) Solar radiation into electrical energy
(c) Solar radiation into thermal energy
(d) Thermal energy into electrical energy
Answer:

Option (b)

127.
Solar cells are made of
(a) Aluminium
(b) Germanium
(c) Silicon
(d) Cadmium
Answer:

Option (c)

128.
A module is a
(a) Series arrangement of solar cells
(b) Parallel arrangement of solar cells
(c) Series parallel arrangement of solar cells
(d) All of above
Answer:

Option (c)

129.
The efficiency of solar cells is about
(a) 25%
(b) 15%
(c) 40%
(d) 60%
Answer:

Option (b)

130.
Voltage of solar cells is
(a) 0.5 to 1 V
(b) 1 to 2 V
(c) 2 to 3 V
(d) 4 to 5 V
Answer:

Option (a)

Showing 121 to 130 out of 137 Questions
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