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Question (1)

QN002271

A thunderstorm is generally accompanied by:

(A) Snowfall only
(B) Thunder and lightning
(C) Earthquakes
(D) Fog only

Correct Answer: B

Explanation:

Thunderstorms involve thunder and lightning.

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Question (2)

QN002272

The rapid heating and expansion of air due to lightning produces:

(A) Rainbows
(B) Thunder
(C) Dew
(D) Frost

Correct Answer: B

Explanation:

Rapid expansion of heated air produces thunder.

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Question (3)

QN002273

Lightning is a sudden electrical discharge occurring in:

(A) Oceans only
(B) Clouds or between cloud and Earth
(C) Rocks underground
(D) Plants only

Correct Answer: B

Explanation:

Lightning occurs between clouds or between cloud and Earth.

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Question (4)

QN002274

A lightning strike transfers 5000 J of energy in 5 s. What is the power produced?

(A) 100 W
(B) 500 W
(C) 1000 W
(D) 25000 W

Correct Answer: C

Explanation:

Power = 5000 ÷ 5 = 1000 W

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Question (5)

QN002275

Which cloud is commonly associated with thunderstorms?

(A) Cirrus cloud
(B) Stratus cloud
(C) Cumulonimbus cloud
(D) Fog cloud

Correct Answer: C

Explanation:

Cumulonimbus clouds are associated with thunderstorms.

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Question (6)

QN002276

During a thunderstorm, warm moist air:

(A) Sinks downward rapidly
(B) Rises upward rapidly
(C) Remains stationary
(D) Freezes instantly

Correct Answer: B

Explanation:

Warm moist air rises rapidly.

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Question (7)

QN002277

The bright flash seen during lightning is caused by:

(A) Reflection from clouds
(B) Electrical discharge in atmosphere
(C) Burning dust particles
(D) Rotation of Earth

Correct Answer: B

Explanation:

Lightning is caused by electrical discharge.

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Question (8)

QN002278

A thunder sound is heard 6 s after lightning is seen. If speed of sound is 340 m/s, how far away is the lightning?

(A) 340 m
(B) 680 m
(C) 1020 m
(D) 2040 m

Correct Answer: D

Explanation:

Distance = 340 × 6 = 2040 m

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Question (9)

QN002279

Which condition is most favourable for thunderstorm formation?

(A) Cool and dry air
(B) Warm and moist air
(C) Cold and still air
(D) Dry desert winds only

Correct Answer: B

Explanation:

Warm moist air favours thunderstorms.

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Question (10)

QN002280

Lightning conductors are installed on buildings to:

(A) Increase electric current
(B) Attract rainwater
(C) Protect buildings from lightning damage
(D) Produce artificial thunder

Correct Answer: C

Explanation:

Lightning conductors protect buildings.

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Question (1)

A thunderstorm is generally accompanied by:

Explanation:

Link:

Question (2)

The rapid heating and expansion of air due to lightning produces:

Explanation:

Link:

Question (3)

Lightning is a sudden electrical discharge occurring in:

Explanation:

Link:

Question (4)

A lightning strike transfers 5000 J of energy in 5 s. What is the power produced?

Explanation:

Link:

Question (5)

Which cloud is commonly associated with thunderstorms?

Explanation:

Link:

Question (6)

During a thunderstorm, warm moist air:

Explanation:

Link:

Question (7)

The bright flash seen during lightning is caused by:

Explanation:

Link:

Question (8)

A thunder sound is heard 6 s after lightning is seen. If speed of sound is 340 m/s, how far away is the lightning?

Explanation:

Link:

Question (9)

Which condition is most favourable for thunderstorm formation?

Explanation:

Link:

Question (10)

Lightning conductors are installed on buildings to:

Explanation:

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