Exam Question
Write short notes on the following:
(a) Indicated Power (3)
(b) Specific fuel oil consumption (3)
(c) Brake power (3)
(d) Mechanical efficiency (3)
(e) Thermal efficiency (4)
Class 4 (4th Engineer)
MEKM
📅 Oct 2025
Reference Answer
### (a) Indicated Power (IP)
#### Definition
Indicated Power is the theoretical power developed within the cylinders of an internal combustion engine by the pressure of the expanding gases acting on the crowns of the pistons. It represents the total rate of work done by the working fluid on the pistons before any frictional losses occur. The name is derived from the use of an 'engine indicator', an instrument used to measure this power.
#### Measurement and Principle
#### Definition
Indicated Power is the theoretical power developed within the cylinders of an internal combustion engine by the pressure of the expanding gases acting on the crowns of the pistons. It represents the total rate of work done by the working fluid on the pistons before any frictional losses occur. The name is derived from the use of an 'engine indicator', an instrument used to measure this power.
#### Measurement and Principle
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