Question

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: In a centrifugal pump, the function of impeller is to impart high velocity of water so that velocity head is increased. Reason R: The function of casing is to reduce velocity of water so that velocity head is reduced and converted into pressure head. In the light of the above statements, choose the most appropriate answer from the options given below

• A. Both A and R are correct and R is the correct explanation of A
• B. Both A and R are correct but R is NOT the correct explanation of A
• C. A is correct but R is not correct
• D. A is not correct but R is correct

Hint:

Functions in centrifugal pump: \[ \boxed{ \text{Impeller} \rightarrow \text{Increase velocity} } \] \[ \boxed{ \text{Casing} \rightarrow \text{Convert velocity head into pressure head} } \] Volute casing works as a diffuser.

Answer 1

The Correct Option is A