Question

why is a constant RPM necessary while conducting morse test

Answer 1

Answer:

The purpose of Morse Test is to obtain the approximate Indicated Power of a Multi-cylinder Engine. ... Accordingly, the load on the dynamometer is adjusted so as to restore the engine speed. This is done to maintain FP constant, which is considered independent of the load and proportional to the engine speed.

Answer 2

Following are the reasons why a constant RPM is necessary for conducting a Morse Test:

• From the Morse Test, we get the approximate value of the Multi-Cylinder Engine's Power.
• In Morse Test, the engine runs against a given dynamometer that cuts out a cylinder's firing while keeping the speed constant.
• Hence, keeping the power value in mind, the dynamometer is adjusted to keep the engine speed constant.
• This leads to maintaining a constant RPM (revolutions per minute) that in turn leads to keeping the FP speed constant.
• Hence to keep the balance between the engine speed and the power, RPM is kept constant in Morse Test.

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