Question

In Morse test, the engine is first run at the required speed by adjusting the throttle in ___________

(a) CI engine

(b) SI engine

(c) CI & SI engine

(d) none of the mentioned

I had been asked this question in a job interview.

Asked question is from Measurement and Testing topic in division Measurements and Testing/Performance Parameters and Characteristics of IC Engine

Answer 1

The correct answer is:

(c) CI & SI engine

The Morse test is used to determine the indicated power of multi-cylinder engines (both CI and SI) by cutting out one cylinder at a time while the engine is running at a constant speed, adjusting the throttle to maintain the required speed. This test can be performed on both compression-ignition (CI) and spark-ignition (SI) engines.