Test: Solar Radiations

Question 1

The heat energy absorbed by a known area in a fixed time is determined with the help of an instrument called

Accepted Answer

Pyrheliometer

Answer

Psychrometer

Answer

Thermometric well

Answer

Any instrument

Question 2

The observed solar constant S₀, the true solar constant S and the angular elevation Z of the sun are related by the expression

Accepted Answer

S₀ =S a ^{SEC Z}

Answer

S₀ =2 S a ^{SEC Z}

Answer

S₀ =3 S a ^{SEC Z}

Answer

S₀ =4 S a ^{SEC Z}

Question 3

The value of solar constant varies between

Accepted Answer

1335 and 1815 W/m²

Answer

1123 and 1237 W/m²

Answer

1345 and 1453 W/m²

Answer

1987 and 2346 W/m²

Question 4

The total amount of heat energy received by the sphere of radius r is

Accepted Answer

4 &pi; R2 S

Answer

2 &pi; R2 S

Answer

6 &pi; R2 S

Answer

&pi; R2 S

Question 5

Amount of heat energy radiated by unit surface of the sun in the same time workout as Take, R = mean distance of earth from the sun and r = radius of sun

Accepted Answer

E = 4 π R² S/4 π R²

Answer

E = π R² S/4 π R²

Answer

E = 4 π R²

Answer

E = 4 π R² S

Question 6

Temperature of sun can be workout from

Accepted Answer

Wein’s displacement law

Answer

Stefan-Boltzmann law

Answer

Kirchhoff’s law

Answer

All of the Mentioned

Question 7

The temperature of the photosphere, referred to as the effective temperature of the sun, is usually taken as

Accepted Answer

6000 K

Answer

3000 K

Answer

4000 K

Answer

5000 K

Question 8

The approximate distribution of the flow of sun’s energy to the earth’s surface is

Accepted Answer

9% is scattered

Answer

53% is reflected back to space

Answer

53% is transmitted to the earth

Answer

22% is absorbed in the atmosphere

Question 9

The solar radiation that is felt at the earth’s surface includes
(i) Direct radiation that has passed through the atmosphere
(ii) Diffuse radiation from the sky
(iii) Absorbed radiation from the water
Identify the correct statement

Accepted Answer

1 and 2

Answer

1 only

Answer

1, 2 and 3

Answer

2 and 3

Question 10

When the sun lies at a mean distance from the earth, the heat flux from the sun to the outer edge of the atmosphere has been found to be

Accepted Answer

1350 W/m2

Answer

2350 W/m2

Answer

3350 W/m2

Answer

4350 W/m2

Solar Radiations - Free MCQ Practice Test with solutions, GATE ME Heat

MCQ Practice Test & Solutions: Test: Solar Radiations (10 Questions)

The heat energy absorbed by a known area in a fixed time is determined with the help of an instrument called

The observed solar constant S₀, the true solar constant S and the angular elevation Z of the sun are related by the expression

The value of solar constant varies between

The total amount of heat energy received by the sphere of radius r is

Amount of heat energy radiated by unit surface of the sun in the same time workout as Take, R = mean distance of earth from the sun and r = radius of sun

Temperature of sun can be workout from

The temperature of the photosphere, referred to as the effective temperature of the sun, is usually taken as

The approximate distribution of the flow of sun’s energy to the earth’s surface is

The solar radiation that is felt at the earth’s surface includes
(i) Direct radiation that has passed through the atmosphere
(ii) Diffuse radiation from the sky
(iii) Absorbed radiation from the water
Identify the correct statement

When the sun lies at a mean distance from the earth, the heat flux from the sun to the outer edge of the atmosphere has been found to be

Heat Transfer

Heat Transfer

Top Courses for Mechanical Engineering

About this Mechanical Engineering Practice Test

Explore more Mechanical Engineering Study Resources

Solar Radiations - Free MCQ Practice Test with solutions, GATE ME Heat

MCQ Practice Test & Solutions: Test: Solar Radiations (10 Questions)

The heat energy absorbed by a known area in a fixed time is determined with the help of an instrument called

The observed solar constant S0, the true solar constant S and the angular elevation Z of the sun are related by the expression

The value of solar constant varies between

The total amount of heat energy received by the sphere of radius r is

Amount of heat energy radiated by unit surface of the sun in the same time workout as Take, R = mean distance of earth from the sun and r = radius of sun

Temperature of sun can be workout from

The temperature of the photosphere, referred to as the effective temperature of the sun, is usually taken as

The approximate distribution of the flow of sun’s energy to the earth’s surface is

The solar radiation that is felt at the earth’s surface includes (i) Direct radiation that has passed through the atmosphere (ii) Diffuse radiation from the sky (iii) Absorbed radiation from the water Identify the correct statement

When the sun lies at a mean distance from the earth, the heat flux from the sun to the outer edge of the atmosphere has been found to be

Heat Transfer

Heat Transfer

Top Courses for Mechanical Engineering

About this Mechanical Engineering Practice Test

Explore more Mechanical Engineering Study Resources

The observed solar constant S₀, the true solar constant S and the angular elevation Z of the sun are related by the expression

The solar radiation that is felt at the earth’s surface includes
(i) Direct radiation that has passed through the atmosphere
(ii) Diffuse radiation from the sky
(iii) Absorbed radiation from the water
Identify the correct statement