By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power.The saving in case of a double acting reciprocating pump is

By fitting an air vessel to the reciprocating pump, there is always a

1.	By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power.The saving in case of a double acting reciprocating pump is
A.	0.88
B.	0.488
C.	0.392
D.	0.884
Answer» D. 0.884