Question

what is a good fuel??

Answer 1

The good fuel has high calorific value...
The good fuel do not produce a lot of smoke while burning..
And they are easily available...
It are also cheap..
It should be safe to handle,store and transport..
It should neither burn too fast nor too slow but at a constant rate...

Answer 2

A fuel is said to be good if it has high calorific value ,it shouldn't leave any residue after burning, shouldn't cause pollution, should be safe to store, easily available at cheaper rate, having moderate ignition temperature ,burn at moderate rate with controlled release of heat.
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