MCQOPTIONS

Explore topic-wise MCQs in Solar Energy.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Solar Energy knowledge and support exam preparation. Choose a topic below to get started.

1.	The altitude angle is maximum at noon.
A.	True
B.	False
Answer» B. False

2.	Hour angle is a measure of time of day with respect to solar noon.
A.	True
B.	False
Answer» B. False

3.	Altitude angle is the _______
A.	vertical angle between projection of sun’s rays on the horizontal plane of earth’s surface
B.	horizontal angle between projection of sun’s rays on the horizontal plane of earth’s surface
C.	vertical angle between projection of sun’s rays on the vertical plane normal to earth’s surface
D.	horizontal angle between projection of sun’s rays on the vertical plane normal to earth’s surface
Answer» B. horizontal angle between projection of sun’s rays on the horizontal plane of earth’s surface

4.	What the hour angle?
A.	Angle between ray of the sun when extended to the earth’s center and the equatorial plane
B.	Angle between line joining the location to earth’s center and earth’s equatorial plane
C.	Angle through which the turns to bring the meridian of a point in line with sun’s rays
D.	Angle through which the turns to bring the meridian of a point directly in line with sun’s rays
Answer» E.

5.	What is the range of sun’s declination angle throughout the year?
A.	Between 0 and 90 degrees
B.	Between 0 and 23.5 degrees
C.	Between -23.5 and 23.5 degrees
D.	Between -23.5 and 0 degrees
Answer» D. Between -23.5 and 0 degrees

6.	Which of the following indicates the position of any point on earth?
A.	Rectangular co-ordinate system
B.	Latitudes, longitudes
C.	Radial co-ordinate system
D.	Spherical co-ordinate system
Answer» C. Radial co-ordinate system

7.	Solar radiation spectrum is close to _____
A.	that of a black body
B.	that of a white body
C.	that of Jupiter
D.	that of phase response
Answer» B. that of a white body

8.	When does the vernal equinox occur?
A.	January
B.	December
C.	September
D.	March
Answer» E.

9.	When does the autumnal equinox occur?
A.	January
B.	August
C.	September
D.	December
Answer» D. December

10.	The lines joining North and South pole of earth are called _____
A.	latitudes
B.	longitudes
C.	equator
D.	semicircle lines
Answer» C. equator

11.	How is latitude of a location on earth defined?
A.	Angle between line joining the location to earth’s center and earth’s equatorial plane
B.	Angle between line joining the location to earth’s center and the meridian plane
C.	Angle subtended by sun on earth
D.	Angle between sun’s rays extended to earth’s center and earth’s equatorial plane
Answer» B. Angle between line joining the location to earth’s center and the meridian plane

12.	What is the sun’s declination during earth’s motion from vernal equinox to summer solstice?
A.	Greater than 50 degrees
B.	Between 0 and 30 degrees
C.	Greater than 0 degrees
D.	Less than 0 degrees
Answer» E.

13.	During which of the following periods is the earth below the plane of sun?
A.	Vernal equinox to winter solstice
B.	Winter solstice to vernal equinox
C.	Vernal equinox to summer solstice
D.	Summer solstice to winter solstice
Answer» D. Summer solstice to winter solstice

14.	What is sun’s declination angle during earth’s motion from autumnal equinox to winter solstice?
A.	Greater than 90 degrees
B.	Less than 0 degrees
C.	Greater than 0 degrees
D.	Between 60 and 90 degrees
Answer» C. Greater than 0 degrees

15.	Which of the following best describes the motion of sun from autumnal equinox to winter solstice?
A.	Earth is above the plane of the sun
B.	Earth is below the plane of the sun
C.	Earth’s center lies on the plane of the sun
D.	Earth first escalates above the plane and then transcends below the plane of sun
Answer» B. Earth is below the plane of the sun