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Engine testing: Morse test applicability For which engines can the Morse test (cylinder cut-out method for indicated power estimation) be conducted? Choose the correct option.

Difficulty: Easy

Petrol engines
Diesel engines
Multi-cylinder engines
All of these

Correct Answer: Multi-cylinder engines

Explanation:

Concept
The Morse test estimates indicated power by cutting out one cylinder at a time and measuring changes in brake power. This requires more than one cylinder; it can be applied to either SI or CI engines provided they are multi-cylinder.

Final Answer
Multi-cylinder engines

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