Power System - I (3140914) MCQs

MCQs of Introduction to Wind and Solar Power Generation

Showing 41 to 50 out of 137 Questions
2 3 4 5 6 7
41.
Compared to conventional source of power generation, cost of wind power generation is
(a) 100 times
(b) 10 times
(c) Comparable
(d) 1/10 times
Answer:

Option (c)

42.
Energy payback period of wind power generation is
(a) 1 year
(b) 2 year
(c) 3 year
(d) 4 year
Answer:

Option (a)

43.
There is little wind in
(a) North pole region
(b) South pole region
(c) Tropical region
(d) ±5° around equator
Answer:

Option (d)

44.
When solar radiation falls on earth surface, the temperature of
(a) Land mass raises faster than water
(b) Land mass raises slower than water
(c) Land mass and water raises uniformly
(d) Land mass raises but of water remains at fixed level
Answer:

Option (a)

45.
Wind turbine extracts maximum power from wind, when downstream wind speed reduces to
(a) One third of upstream wind speed
(b) Half of upstream wind speed
(c) Two third of upstream wind speed
(d) Zero
Answer:

Option (a)

46.
Stalled flow occurs when incident angle is
(a) 0°
(b) 180°
(c) 0° to 16°
(d) Greater than 16°
Answer:

Option (d)

47.
If the speed of wind stream remains unchanged while passing through the rotor
(a) Large power is generated
(b) Zero power is generated
(c) Flow is known as stalled flow
(d) Speed of rotor is very high
Answer:

Option (b)

48.
As per Betz criteria, maximum energy extracted by ideal wind turbine is
(a) 29% of that available in wind
(b) 39% of that available in wind
(c) 49% of that available in wind
(d) 59% of that available in wind
Answer:

Option (d)

49.
Maximum axial thrust occurs when interference angle is
(a) 0
(b) 0.33
(c) 0.5
(d) 1
Answer:

Option (c)

50.
Two blade wind turbine produces maximum power when tip speed ratio is
(a) π
(b) 2π
(c) 3π
(d) 4π
Answer:

Option (b)

Showing 41 to 50 out of 137 Questions
2 3 4 5 6 7