For a propulsive device, if power available is denoted by P1, power i – McqOptions

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1.	For a propulsive device, if power available is denoted by P1, power input by P2, combustion efficiency by e, then which of the following expression is correct?
A.	P1=P2*e
B.	P1=P2/e
C.	P1=P2/e2
D.	P1=P2*e2
Answer» B. P1=P2/e

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