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Question (21)

QN005693

A rooftop solar system generates 18 units of electricity daily. How many units will it generate in 10 days?

(A) 160
(B) 170
(C) 180
(D) 190

Correct Answer: C

Explanation:

18 × 10 = 180 units.

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Question (22)

QN005694

Which process in nature is directly driven by solar heat?

(A) Condensation alone
(B) Evaporation
(C) Freezing
(D) Melting of metals

Correct Answer: B

Explanation:

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Question (23)

QN005695

A school installs solar panels that reduce electricity consumption by 25 units daily. How many units are saved in 4 days?

(A) 50
(B) 75
(C) 100
(D) 125

Correct Answer: C

Explanation:

25 × 4 = 100 units.

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Question (24)

QN005696

Which Indian initiative promotes the use of solar energy on a large scale?

(A) Green Revolution
(B) National Solar Mission
(C) White Revolution
(D) Blue Revolution

Correct Answer: B

Explanation:

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Question (25)

QN005697

A solar lantern is charged fully and used for 6 hours every night. For how many hours will it be used in a week?

(A) 36 hours
(B) 40 hours
(C) 42 hours
(D) 48 hours

Correct Answer: C

Explanation:

6 × 7 = 42 hours.

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Question (26)

QN005698

Which statement correctly explains the role of the Sun in the water cycle?

(A) It cools rivers directly
(B) It causes evaporation of water
(C) It creates groundwater directly
(D) It stores rainwater

Correct Answer: B

Explanation:

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Question (27)

QN005699

A farmer uses a solar pump for 3 hours daily. How many hours will it run in 15 days?

(A) 30 hours
(B) 40 hours
(C) 45 hours
(D) 50 hours

Correct Answer: C

Explanation:

3 × 15 = 45 hours.

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Question (28)

QN005700

What is a major advantage of solar energy?

(A) Produces smoke
(B) Limited availability underground
(C) Environment-friendly
(D) Causes water pollution

Correct Answer: C

Explanation:

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Question (29)

QN005701

If one solar panel generates 14 units of electricity in a day, how many units will 3 identical panels generate in a day?

(A) 28
(B) 36
(C) 42
(D) 48

Correct Answer: C

Explanation:

14 × 3 = 42 units.

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Question (30)

QN005702

Which of the following ultimately depends on solar energy?

(A) Food chains
(B) Wind formation
(C) Water cycle
(D) All of these

Correct Answer: D

Explanation:

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Question (21)

A rooftop solar system generates 18 units of electricity daily. How many units will it generate in 10 days?

Explanation:

Link:

Question (22)

Which process in nature is directly driven by solar heat?

Explanation:

Link:

Question (23)

A school installs solar panels that reduce electricity consumption by 25 units daily. How many units are saved in 4 days?

Explanation:

Link:

Question (24)

Which Indian initiative promotes the use of solar energy on a large scale?

Explanation:

Link:

Question (25)

A solar lantern is charged fully and used for 6 hours every night. For how many hours will it be used in a week?

Explanation:

Link:

Question (26)

Which statement correctly explains the role of the Sun in the water cycle?

Explanation:

Link:

Question (27)

A farmer uses a solar pump for 3 hours daily. How many hours will it run in 15 days?

Explanation:

Link:

Question (28)

What is a major advantage of solar energy?

Explanation:

Link:

Question (29)

If one solar panel generates 14 units of electricity in a day, how many units will 3 identical panels generate in a day?

Explanation:

Link:

Question (30)

Which of the following ultimately depends on solar energy?

Explanation:

Link:

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