A fuel with a total energy of 11000 kJ is used by a 1000 kW engine. How much energy is lost if the engine burns all of the fuel in 10 seconds?

Question

Question

This question was previously asked in

MPPGCL JE Electrical 28 April 2023 Shift 2 Official Paper

Answer 1

Concept

The energy of an engine is calculated as:

E = P × t

where, E = Energy

P = Power

t = Time

Calculation

Given, Power = 1000 kW

t = 10 sec

E = 1000 × 10

E = 10000 kJ

Energy lost = Total energy − Energy used

Energy lost = 11,000 − 10,000

Energy lost = 1000 kJ

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