Choose the correct statement s 1 Fuel used in rocket must burn slowly and not explode...........

Science Affairs Space

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Choose the correct statement(s).

1. Fuel used in rocket must burn slowly and not explode.

2. A good Fuel must produce less volume of gas at high pressure and temperature.

3. Powdered Aluminium ammonium per chlorate or ammonium nitrate is used as rocket fuel

Which of the statement(s) given above is/are correct?

Only 3

1 and 2

All

2 and 3

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Explanation:

1st and 2nd statements are incorrect.
Liquid-fuel rockets most commonly use liquid oxygen and either kerosene or liquid hydrogen. Solid-rocket fuel is easier and cheaper to handle and make as you don’t have to cool materials to cryogenic temperatures. This means solid fuel is quite prevalent in military applications and also the first stages of space rockets.