If two pumps identical in all respects and each capable of delivering a discharge Q against a head H are connected in series, the resulting discharge is

If two pumps identical in all respects and each capable of delivering

1.	If two pumps identical in all respects and each capable of delivering a discharge Q against a head H are connected in series, the resulting discharge is
A.	2Q against a head 2H
B.	2Q against a head H
C.	Q against a head 2H
D.	\(\sqrt Q\) against a head H
Answer» D. \(\sqrt Q\) against a head H