Renewable Energy Engineering (2181910) MCQs

MCQs of Solar Energy

Showing 61 to 70 out of 114 Questions
4 5 6 7 8 9
61.
Which is provided to minimize heat loss?
(a) Insulation
(b) Absorber plate
(c) Surface plate
(d) Casing
Answer:

Option (a)

62.
Which part of flat plate collectors is coated in black?
(a) Transparent cover
(b) Insulation
(c) Absorber plate
(d) Fins
Answer:

Option (c)

63.
The frame which contains all the parts is called __________
(a) box
(b) plate
(c) enclose
(d) container
Answer:

Option (d)

64.
In which collector does airflow without any obstruction?
(a) Porous absorber plate
(b) Non-porous absorber plate
(c) Over lapped glass absorber
(d) Finned absorber
Answer:

Option (b)

65.
In which absorber matrix material is arranged and the back-absorber plate is eliminated?
(a) Non-porous absorber plate
(b) Over lapped glass absorber
(c) Finned absorber
(d) Porous absorber plate
Answer:

Option (d)

66.
Which type of absorber increases the heat transfer area over a simple flat plate absorber of the same capacity?
(a) Finned absorber
(b) Porous absorber plate
(c) Non-porous absorber plate
(d) Over lapped glass absorber
Answer:

Option (a)

67.
In which type of absorber plate is the overall flow direction is along with the absorber glass plate?
(a) Finned absorber
(b) Overlapped glass absorber
(c) Non-porous absorber plate
(d) Porous absorber plate
Answer:

Option (b)

68.
How is heat loss overcome in liquid plate collectors?
(a) By casing
(b) By the transparent cover
(c) By insulation
(d) From provided tubes
Answer:

Option (c)

69.
Liquid flat-plate collector is usually held tilted in a fixed position, facing _____ if located in the northern hemisphere.
(a) South
(b) North
(c) East
(d) West
Answer:

Option (a)

70.
The efficiency of Flat plate collector can be improved by
(a) increases, decreasing
(b) decreases, increasing
(c) depends upon type of collector
(d) remains the same, increasing
Answer:

Option (b)

Showing 61 to 70 out of 114 Questions
4 5 6 7 8 9