Two pumps identical in all respects and each capable of delivering a discharge, against a head H are connected in series, the resulting discharge is
- A2Q against a head 2H
- B2Q against a head H
- CQ against a head 2HCorrect
- DQ against a head 2 H
Solution
Concept
Series operation
Step-by-step solution
1. Identical pumps in series deliver the same discharge Q against double the head 2H.
Explanation
Heads add.
Why the other options are wrong
Discharge does not double.
Shortcut
Series: Q same, H adds.
Correct answer: C) Q against a head 2H