Renewable Energy Engineering (2181910) MCQs

MCQs of Ocean Energy

Showing 31 to 40 out of 79 Questions
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31.
Which among the following is not an adverse environmental impact of tidal power generation?
(a) Navigational hazard
(b) Interference with spawing and migration of fish
(c) Pollution and health hazard in the estuary due to blockage of the flow of polluted water into the sea
(d) None of the above
Answer:

Option (d)

32.
The kinetic energy that results from the oscillation of water is called
(a) wave energy
(b) tidal energy
(c) ocean thermal energy
(d) hydro energy
Answer:

Option (a)

33.
How is the height of wave determined?
(a) By wind speed
(b) By force of the wave
(c) By an immersion scale
(d) By a floating device
Answer:

Option (d)

34.
Waves are caused indirectly by
(a) wind energy
(b) solar energy
(c) geothermal energy
(d) wave energy
Answer:

Option (b)

35.
What is used to reduce the motion of floats?
(a) Backpressure
(b) Tubes
(c) Damping fins
(d) Anchor
Answer:

Option (c)

36.
What is the major disadvantage of wave energy?
(a) It is not efficient enough
(b) It is available only in the ocean
(c) The harnessing cost is more
(d) Unstable during high wind pressures
Answer:

Option (b)

37.
The motion of water in a wave is primarily
(a) vertical
(b) horizontal
(c) linear
(d) opposite
Answer:

Option (a)

38.
Which device uses the float which has two motions?
(a) High-level reservoir wave machine
(b) Dolphin type wave generator
(c) Hydraulic accumulator
(d) Float wave power conversion device
Answer:

Option (b)

39.
Power in waves is
(a) directly proportional to the square of its amplitude and to the period of motion
(b) inversely proportional to the square of its amplitude and to the period of motion
(c) directly proportional to the square of its amplitude and Inversely proportional to the period of motion
(d) inversely proportional to the square of its amplitude and directly proportional to the period of motion
Answer:

Option (a)

40.
Wave energy is basically harnessed in the form of
(a) thermal energy
(b) chemical energy
(c) mechanical energy
(d) electrical energy
Answer:

Option (c)

Showing 31 to 40 out of 79 Questions
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