Renewable Energy Engineering (2181910) MCQs

MCQs of Wind Energy

Showing 61 to 70 out of 81 Questions
4 5 6 7 8 9
61.
Name the type of windmill which consists of a sloping, horizontally weather boarded or thatched tower.
(a) post mill
(b) smock mill
(c) tower mill
(d) fan mill
Answer:

Option (b)

62.
In which of the following, does machine rotor drives through a step up gear box?
(a) Horizontal axis with two aerodynamic blades
(b) Horizontal axis propeller type wind mill
(c) Horizontal axis multi bladed type wind mill
(d) Sail type wind mill
Answer:

Option (a)

63.
Which type of windmill has better performance?
(a) Vertical type wind mills
(b) Darrieus type machines
(c) Magnus effect rotor
(d) Horizontal type windmills
Answer:

Option (d)

64.
The rotor wind turbine can accept the wind from any compass is
(a) darrieus type
(b) savonius type
(c) propeller type
(d) multi blade type
Answer:

Option (a)

65.
Horizontal axis wind mill of modern design can
(a) always turn to face wind
(b) not adjust its output
(c) not turn to wind direction
(d) not turn to face wind
Answer:

Option (a)

66.
Vertical axis wind turbines are known by names such as
(a) smith-Putnam
(b) savonius
(c) darrieus
(d) both B and C
Answer:

Option (d)

67.
Which of the following wind mill runs independently of the direction of the direction of the wind?
(a) darrieus
(b) sail type
(c) propeller type
(d) multi blade type
Answer:

Option (a)

68.
The amount of energy available in the wind at any instant is proportional to ___ of the wind speed.
(a) square root power of two
(b) square root power of three
(c) square power
(d) cube power
Answer:

Option (d)

69.
For the same rotor diameter, as the wind speed increases, total power developed
(a) decreases
(b) increases
(c) remains constant
(d) may increase or decreases, but depend on wind speed
Answer:

Option (b)

70.
Stalled flow occurs when the value of the incident angle is
(a) 0 degree
(b) 180 degree
(c) comparable
(d) beyond 16 degree
Answer:

Option (d)

Showing 61 to 70 out of 81 Questions
4 5 6 7 8 9