Correct option is A
Ans. (a)
Sol. The
calorific value of a fuel is the amount of energy released when a specific quantity of the fuel is burned completely. It is typically expressed in
kilojoules per kilogram (kJ/kg). This unit measures the energy content of the fuel.
Explanation of each option:
·
(a) Kilojoules per kg –
Correct answer. This is the standard unit used to express the
calorific value of a fuel.
·
(b) Kilometer per kg – Incorrect, this unit measures
distance per mass, which is unrelated to calorific value.
·
(c) Kilonewton per kg – Incorrect, this unit measures
force per mass, not the energy content of fuel.
·
(d) Kilowatt per kg – Incorrect, kilowatts are units of
power, not energy content.
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