Reciprocating pumps i. are positive displacement pumps. ii. are used for low discharge and high head.
- AOnly (i)
- BOnly (ii)
- CBoth (i) and (ii)Correct
- DNeither (i) nor (ii)
Solution
Concept
Operating characteristics of reciprocating pumps
Formula
NONE
Step-by-step solution
1. Reciprocating pumps operate by trapping a definite volume of liquid and forcing it into the discharge pipe, making them positive displacement pumps. Answer: C
Explanation
Reciprocating pumps function by trapping a fixed volume of fluid inside a cylinder using a piston, making them positive displacement pumps. They are specifically designed for applications requiring high pressure heads with low discharge rates. Because both statements are true, option C is correct.
Why the other options are wrong
B) Statement (i) is true because reciprocating pumps function as positive displacement pumps. D) Statement (i) is correct, so neither statement being true is incorrect.
Shortcut
Reciprocating pumps are positive displacement pumps designed for Low Discharge and High Head.
Common mistake
Selecting option A or B by confusing the operational head and discharge characteristics of reciprocating pumps with centrifugal pumps.
Correct answer: C) Both (i) and (ii)