UPSC CSE Prelims
Question 80
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?
View correct answer and explanation
Correct answer: D
Correct Option: D (Neither 1 nor 2)
Explanation: Solar photovoltaic systems can power both surface and submersible water pumps, and they can be coupled with either centrifugal or suitable positive-displacement piston pumps.
Statement / Pair / Item-wise Analysis:
1. Incorrect - Solar power can run submersible borewell pumps as well as surface pumps.
2. Incorrect - Solar motors and controllers can drive compatible piston/positive-displacement pumps as well as centrifugal ones.
Option-wise Analysis:
A. Incorrect-includes incorrect item 1 (Solar power can run submersible borewell pumps as well as surface pumps).
B. Incorrect-includes incorrect item 2 (Solar motors and controllers can drive compatible piston/positive-displacement pumps as well as centrifugal ones).
C. Incorrect-includes incorrect item 1 (Solar power can run submersible borewell pumps as well as surface pumps); includes incorrect item 2 (Solar motors and controllers can drive compatible piston/positive-displacement pumps as well as centrifugal ones).
D. Correct-includes all and only valid statements/items none.