A good fuel is one which possesses:

(a) high calorific value and low ignition temperature
(b) high calorific value and high ignition temperature
(c) high calorific value and moderate ignition temperature
(d) low calorific value and moderate ignition temperature

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Solution

(c) high calorific value and moderate ignition temperature

A good fuel should have a high calorific value so that it can give us more heat per unit mass. It should also have a moderate ignition temperature.

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\begin{matrix} Fuel & Calorific value (kJ/kg) & Ignition Temperature (^{0} C) A & 100 & 5 B & 80 & 50 C & 30 & 60 D & 20 & 70 \end{matrix}

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A good fuel is one which possesses: (a) high calorific value and low ignition temperature (b) high calorific value and high ignition temperature (c) high calorific value and moderate ignition temperature (d) low calorific value and moderate ignition temperature

(c) high calorific value and moderate ignition temperature A good fuel should have a high calorific value so that it can give us more heat per unit mass. It should also have a moderate ignition temperature.

A good fuel is one which possesses:

(a) high calorific value and low ignition temperature
(b) high calorific value and high ignition temperature
(c) high calorific value and moderate ignition temperature
(d) low calorific value and moderate ignition temperature

(c) high calorific value and moderate ignition temperature

A good fuel should have a high calorific value so that it can give us more heat per unit mass. It should also have a moderate ignition temperature.