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Prelims 2020 · Q88 · Energy technologies

With reference to solar water pumps, consider the following statements :

  1. 1.Solar power can be used for running surface pumps and not for submersible pumps.
  2. 2.Solar power can be used for running centrifugal pumps and not the ones with piston.

Which of the statements given above is/are correct ?

Show answer

Answer: D. Statement 1 is wrong: solar power can run both surface and submersible pumps. Statement 2 is wrong: it can run both centrifugal and piston (positive displacement) pumps. So neither.

Watch for: 'Only' style limits in statements are often false.

Why the other options are wrong
  • A. Wrong because solar power runs submersible pumps too.
  • B. Wrong because solar power runs piston pumps too.
  • C. Wrong because both statements are false.

Source to check: Ministry of New and Renewable Energy, PM-KUSUM scheme guidelines (mnre.gov.in)

Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.