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What can be obtained from the engine indicator diagram?

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in Automobile Engineering by (80.5k points)
What can be obtained from the engine indicator diagram?

(a) Indicated mean effective pressure

(b) Brake mean effective pressure

(c) Relative efficiency

(d) Mechanical efficiency

This question was addressed to me by my college director while I was bunking the class.

I'm obligated to ask this question of Measurements and Testing in portion Automotive Electronics, Engine Performance Parameter & Testing of Automobile Engines of Automobile Engineering

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Correct option is (a) Indicated mean effective pressure

Easiest explanation: The engine indicator diagram is used to obtain the indicated mean effective pressure. Pressure-volume, P-V, and pressure-crank angle, P-θ is the two types of indicator diagram that can be obtained from an engine. Both these indicator diagrams are mutually convertible.

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