With reference to solar water pumps, consider the following statements:
- Solar power can be used for running surface pumps and not for submersible pumps.
- Solar power can be used for running centrifugal pumps and not the ones with piston.
Which of the statements given above is/are correct?
[UPSC Civil Services Exam – 2020 Prelims]
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Answer: (d)
Explanation:
- Solar power can be used for both running surface pumps and for submersible pumps. Hence, statement 1 is not correct.
- Solar power can be used for both running centrifugal pumps and ones with pistons.
- The pumping action is cyclic and can be driven by pistons, screws, gears, rollers, diaphragms, or vanes. Hence, statement 2 is not correct.