Question

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): The leakage losses are less when water supply is intermittent.
Reason (R): Pressure is less in intermittent water supply.
In the light of the above statements, choose the most appropriate answer from the options given below:

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
• B. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct

Hint:

While intermittent supply reduces leakage, it increases the risk of contamination! When pipes are empty, a vacuum can form, sucking in sewage or groundwater through the very leaks that weren't leaking water out.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:

• Assertion: leakage losses are less when water supply is intermittent. Reason: pressure is less in intermittent supply.

Step 2: Detailed Explanation:

• (A) is correct: with intermittent supply the pipes are pressurised only for a few hours, so total leakage is lower.

• (R) is not correct: in intermittent supply the pressure is high when the supply is on (to fill the system quickly), not less.

Step 3: Final Answer:
The correct option is (C) (A) is correct but (R) is not correct.