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6. Combustion and Flame
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Q6 of 13 Page 75

Make a labeled diagram of a candle flame.

The labelled diagram of the candle frame is shown below:


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4

Compare LPG and wood as fuels.

5

Give reasons.

(a) Water is not used to control fires involving electrical equipment.


(b) LPG is a better domestic fuel than wood.


(c) Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not.

7

Name the unit in which the calorific value of a fuel is expressed.

8

Explain how CO2is able to control fires.

Questions · 13
6. Combustion and Flame
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