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Class 2 (2nd Engineer) MEKM 📅 Jun 2024

Exam Question

With reference to mechanical/hydraulic governors explain: (16)

(a) Why flyweights are driven at a higher rotational speed than the engine

(b) How dead band effects are reduced.

(c) How hunting is reduced.

(d) How the output torque is increased.

Exam question diagram

Reference Answer

(a) Why flyweights are driven at a higher rotational speed than the engine
The operation of flyweights in a governor relies on the principle of centrifugal force, which governs their outward movement from the centerline. The centrifugal force is given by:
$$F=m\omega^2r$$
Where:

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