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Question (31)

QN0011423

Electricity can be generated using clean energy sources such as

(A) is correct because the Sun, wind and water are clean energy sources.
(B) Coal, diesel and petrol
(C) Wood, coal and diesel
(D) Petrol, LPG and coal

Correct Answer: A

Explanation:

Option (a) is correct because the Sun, wind and water are clean energy sources.

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Question (32)

QN0011424

Solar panels generate

(A) is correct because solar panels convert sunlight into electricity.
(B) coal from sunlight
(C) diesel from sunlight
(D) food from sunlight

Correct Answer: A

Explanation:

Option (a) is correct because solar panels convert sunlight into electricity.

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Question (33)

QN0011425

Windmills generate electricity using

(A) is correct because wind energy is converted into electricity by windmills.
(B) petrol
(C) coal
(D) wood

Correct Answer: A

Explanation:

Option (a) is correct because wind energy is converted into electricity by windmills.

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Question (34)

QN0011426

Fast-flowing water can help generate

(A) is correct because moving water can be used to generate electricity.
(B) cotton
(C) paper
(D) cloth

Correct Answer: A

Explanation:

Option (a) is correct because moving water can be used to generate electricity.

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Question (35)

QN0011427

Which statement about clean electricity is correct?

(A) is correct because clean electricity sources produce little or no pollution.
(B) It increases smoke
(C) It wastes fuel
(D) It creates harmful gases only

Correct Answer: A

Explanation:

Option (a) is correct because clean electricity sources produce little or no pollution.

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Question (36)

QN0011428

Cochin International Airport is notable because it operates using

(A) is correct because the airport is powered by solar energy.
(B) diesel only
(C) coal only
(D) petrol only

Correct Answer: A

Explanation:

Option (a) is correct because the airport is powered by solar energy.

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Question (37)

QN0011429

Bhadla Solar Park contributes to electricity generation using

(A) is correct because solar parks generate electricity from sunlight.
(B) coal
(C) wood
(D) diesel

Correct Answer: A

Explanation:

Option (a) is correct because solar parks generate electricity from sunlight.

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Question (38)

QN0011430

A village installs solar panels to generate electricity. What is a likely advantage?

(A) is correct because solar energy is a clean source of electricity.
(B) Increased smoke
(C) Greater coal consumption
(D) More pollution

Correct Answer: A

Explanation:

Option (a) is correct because solar energy is a clean source of electricity.

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Question (39)

QN0011431

A family switches off unused lights and uses LED bulbs. What does this demonstrate?

(A) is correct because saving electricity is a form of energy conservation.
(B) Energy waste
(C) Fuel production
(D) Air pollution

Correct Answer: A

Explanation:

Option (a) is correct because saving electricity is a form of energy conservation.

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Question (40)

QN0011432

A student says electricity is useful because it can provide light, heat, sound and movement. This statement is

(A) is correct because electricity can be converted into light, heat, sound and movement.
(B) incorrect because electricity provides only light
(C) incorrect because electricity provides only heat
(D) incorrect because electricity is not a source of energy

Correct Answer: A

Explanation:

Option (a) is correct because electricity can be converted into light, heat, sound and movement.

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Question (31)

Electricity can be generated using clean energy sources such as

Explanation:

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Question (32)

Solar panels generate

Explanation:

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Question (33)

Windmills generate electricity using

Explanation:

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Question (34)

Fast-flowing water can help generate

Explanation:

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Question (35)

Which statement about clean electricity is correct?

Explanation:

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Question (36)

Cochin International Airport is notable because it operates using

Explanation:

Link:

Question (37)

Bhadla Solar Park contributes to electricity generation using

Explanation:

Link:

Question (38)

A village installs solar panels to generate electricity. What is a likely advantage?

Explanation:

Link:

Question (39)

A family switches off unused lights and uses LED bulbs. What does this demonstrate?

Explanation:

Link:

Question (40)

A student says electricity is useful because it can provide light, heat, sound and movement. This statement is

Explanation:

Link:

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