Which gas is required for fire to burn? MCQ with Answer and Explanation

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Which gas is required for fire to burn?

A. Oxygen

B. Carbon Dioxide

C. Argon

D. Nitrogen

Answer: Option A

Solution (By JKSSB Mock Tests)

Combustion is a chemical reaction that requires oxygen.

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Question #1

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Which of these is a common type of artificial intelligence used for image recognition?

A. HTML

B. CNN (Convolutional Neural Network)

C. FTP

D. SQL

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Correct Answer: Option B

Explanation:
CNNs are deep learning models particularly effective at processing and analyzing visual imagery.

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Question #2

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LVM3 is also known as:

A. GSLV Mk III

B. PSLV

C. RLV

D. SSLV

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Correct Answer: Option A

Explanation:
LVM3 is the heavy lift launch vehicle of ISRO.

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Question #3

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What is the main advantage of reusable rockets?

A. Higher risk

B. Reduced launch cost

C. Increased weight

D. Slower speed

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Correct Answer: Option B

Explanation:
Reusable technology significantly lowers mission costs.

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