812Mechanical EngineeringMedium
In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by________?
Atrimming the impeller size to the required size by machining
Bnone of the above
Csome other alterations in the impeller
Ddesigning new impeller
Enot possible
Correct answer
A. trimming the impeller size to the required size by machining
Explanation
The correct answer is trimming the impeller size to the required size by machining.