Question

The indicated mean effective pressure of an engine is obtained from the indicator diagram drawn with the help of an engine indicator.

(a) True

(b) False

I have been asked this question during an internship interview.

I'd like to ask this question from Comparison of Two Stroke S.I. and C.I. Engines in division Two Stroke Engines of IC Engine

Answer 1

The correct answer is:

(a) True

Explanation:

The indicated mean effective pressure (IMEP) of an engine is the average pressure within the cylinder during the power (combustion) stroke. It can be calculated from the indicator diagram, which is a graphical representation of pressure versus volume in the cylinder over the course of a full engine cycle. 

An engine indicator eis used to record this diagram by connecting it to the engine's cylinder to measure the pressure during operation. By analyzing the area under the indicator diagram, the IMEP can be determined, giving a measure of the engine's indicated power.

Thus, the statement that "the indicated mean effective pressure of an engine is obtained from the indicator diagram drawn with the help of an engine indicator" is True.