Questions and answers for exam Preparation

MCQs

Total Questions : 175 | Page 11 of 18 pages

Question 101. Hour angle is a measure of time of day with respect to solar noon.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 102. Altitude angle is the _______

vertical angle between projection of sun’s rays on the horizontal plane of earth’s surface
horizontal angle between projection of sun’s rays on the horizontal plane of earth’s surface
vertical angle between projection of sun’s rays on the vertical plane normal to earth’s surface
horizontal angle between projection of sun’s rays on the vertical plane normal to earth’s surface

Discuss Question

Answer: Option A. -> vertical angle between projection of sun’s rays on the horizontal plane of earth’s surface
Answer: (a).vertical angle between projection of sun’s rays on the horizontal plane of earth’s surface

Question 103. What the hour angle?

Angle between ray of the sun when extended to the earth’s center and the equatorial plane
Angle between line joining the location to earth’s center and earth’s equatorial plane
Angle through which the turns to bring the meridian of a point in line with sun’s rays
Angle through which the turns to bring the meridian of a point directly in line with sun’s rays

Discuss Question

Answer: Option D. -> Angle through which the turns to bring the meridian of a point directly in line with sun’s rays
Answer: (d).Angle through which the turns to bring the meridian of a point directly in line with sun’s rays

Question 104. What is the range of sun’s declination angle throughout the year?

Between 0 and 90 degrees
Between 0 and 23.5 degrees
Between -23.5 and 23.5 degrees
Between -23.5 and 0 degrees

Discuss Question

Answer: Option C. -> Between -23.5 and 23.5 degrees
Answer: (c).Between -23.5 and 23.5 degrees

Question 105. The altitude angle is maximum at noon.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 106. What is the relationship between insolation and cloud cover in sky?

Inverse
Directly proportional
Square
Exponential

Discuss Question

Answer: Option A. -> Inverse
Answer: (a).Inverse

Question 107. What does the constant “k” signify in the Angstrom-Savinov formula?

Global solar radiation
Mean cloudiness
Reflection of solar radiation within clouds
Transmission of solar radiation within clouds

Discuss Question

Answer: Option D. -> Transmission of solar radiation within clouds
Answer: (d).Transmission of solar radiation within clouds

Question 108. Which does Angstrom-Savinov formula tell?

Relationship between local solar radiation and global cloudiness
Relationship between local solar radiation and local cloudiness
Relationship between global solar radiation and mean cloudiness
Relationship between global solar radiation and global cloudiness

Discuss Question

Answer: Option C. -> Relationship between global solar radiation and mean cloudiness
Answer: (c).Relationship between global solar radiation and mean cloudiness

Question 109. The constant “k” in Angstrom-Savinov formula depends on ________

latitude of the location
longitude of the location
solar radiation
cloud opacity

Discuss Question

Answer: Option A. -> latitude of the location
Answer: (a).latitude of the location

Question 110. Which of the following is a reason for inverse relationship between insolation and cloud cover in sky?

Sunshine duration records are caused by sun being obstructed by transparent cloud cover
Sunshine duration records are caused by sun being obstructed by opaque cloud cover
Sunshine duration records are caused by sunshine being transmitted through opaque cloud cover
Sunshine duration records are caused by sun being obstructed by cloud cover

Discuss Question

Answer: Option B. -> Sunshine duration records are caused by sun being obstructed by opaque cloud cover
Answer: (b).Sunshine duration records are caused by sun being obstructed by opaque cloud cover