F. STATE TRUE OR FALSE
1. The calorific value of a fuel determines its efficiency.
2. All combustible substances give flame while burning.
3. Water is one of the best fire extinguisher used to extinguish all kinds of fire.
4. CNG is a clean fuel.
5. Incomplete combustion of a fuel gives poisonous carbon monoxide gas.
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Explanation:
True
True
false
true
false
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