MCQ
The Mechanical efficiency of i.c. engine is defined as
Options
A) IHP ÷ BHP
B) BHP ÷ IHP
C) IHP - BHP
D) BHP - IHP
Correct answer : option B ( solution discussed below)
Solution
Diesel mechanical efficiency is a ratio of brake power per unit indicated power is known as mechanical efficiency.
Mechanical efficiency
= brake power
Indicated power
= BHP ÷ IHP
Where
BHP = Brake power
IHP = indicated power
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