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Internal Combustion Engines MCQs

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Practice free Internal Combustion Engines multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 262 questions — no login required.

Question 1easy

The working cycle in case of four stroke engine is completed in following number of revolutions of crankshaft

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Question 2easy

In a diesel engine, the fuel is ignited by

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Question 3easy

Supercharging is the process of

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Question 4easy

The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called

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Question 5easy

If the intake air temperature of I.C. engine increases, its efficiency will

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Question 6easy

All heat engines utilise

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Question 7easy

If the compression ratio of an engine working on Otto cycle is increased from 5 to 7, the %age increase in efficiency will be

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Question 8easy

In case of gas turbines, the gaseous fuel consumption guarantees are based on

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Question 9easy

In a typical medium speed 4-stroke cycle diesel engine the inlet valve

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