Renewable Energy Engineering (2181910) MCQs

MCQs of Solar Energy

Showing 71 to 80 out of 114 Questions
5 6 7 8 9 10
71.
Maximum efficiency is obtained in
(a) Flat plate collector
(b) Evacuated tube collector
(c) Line focusing collector
(d) Paraboloid dish collector
Answer:

Option (d)

72.
The value of the concentration ratio of a flat plate collector is
(a) 1
(b) 100
(c) 10
(d) 1000
Answer:

Option (b)

73.
In evacuated tube collectors
(a) only conduction losses are suppressed
(b) both conductions as well as convection losses are suppressed
(c) only convection losses are suppressed
(d) only radiation losses are suppressed
Answer:

Option (b)

74.
Which of the following type of collector is used for low-temperature systems?
(a) Line focusing parabolic collector
(b) Paraboloid dish collector
(c) Flat plate collector
(d) None of the above
Answer:

Option (c)

75.
In the paraboloid dish concept, the concentrator tracks the sun by rotating about
(a) One axis
(b) Two axis
(c) Three axis
(d) None of the above
Answer:

Option (b)

76.
Flat plate collector absorbs
(a) direct radiation only
(b) diffuse radiation only
(c) direct and diffuse both
(d) none of the above
Answer:

Option (c)

77.
Temperature attained by a flat-plate collector is a range of
(a) 90 °C
(b) 150 °C
(c) 250 °C
(d) 350 °C
Answer:

Option (a)

78.
In Parabolic Trough Collector temperature attained in the range of
(a) 350 °C
(b) 400 °C
(c) 450 °C
(d) 650 °C
Answer:

Option (b)

79.
A cylindrical parabolic concentrator requires
(a) 2-axis tracking
(b) 1-axis tracking
(c) no tracking
(d) seasonal adjustment
Answer:

Option (b)

80.
A Scheffler Solar concentrator has
(a) 1-axis tracking
(b) seasonal adjustment
(c) 2-axis tracking
(d) no tracking
Answer:

Option (c)

Showing 71 to 80 out of 114 Questions
5 6 7 8 9 10