Write any three characteristics of a good fuel.

Explanation

Characteristics of a good fuel:
(i) a good fuel should have a hight calorific value . It means it given more heat per unit mass.
It sholud burn without giving out any smoke or hermful gases . So that it does not
pollute air on burning.
(iii) The ignition temperature of an ideal fuel should neither be too low nor too high
because if the ignition temperature of the fuel is very low , then fuel will catch
fire too easily and hence it will be very unsafe to use it. if the ignition temperature
is too high, then it will be very difficult to light the fuel.