Question

The retarding and accelerating heads are developed more promptly in ________________

(a) simple surge tank

(b) restricted orifice surge chamber

(c) differential surge chamber

(d) multi surge chamber

The question was asked in an interview for job.

This interesting question is from Principal Components of a Hydro Electric Scheme topic in section Hydro Electric Power of Irrigation Engineering

Answer 1

Correct choice is (c) differential surge chamber

For explanation: The differential surge chamber has a central riser pipe in addition to the main outer tank and the retarding and accelerating heads are developed more promptly. The capacity of a different type of surge chamber may be less than that of a simple elementary type for a given amount of stabilizing effect.