Difficulty: Easy
Correct Answer: Only II and III follow
Explanation:
Introduction / Context:Drinking-water complaints demand swift verification and engineering fixes. This question asks which courses of action are reasonable for the Ward Officer after residents report contamination and apparent inaction.
Given Data / Assumptions:
Concept / Approach:
Step-by-Step Solution:
II follows: Sampling and lab testing are essential to confirm contamination type and level.III follows: Engineering checks identify ingress of sewage, pressure issues, or pipeline breaches.I does not follow: Discouraging complaints undermines public health surveillance and has no basis.Verification / Alternative check:
Standard operating procedures for water complaints include immediate site visits, bacteriological/chemical tests, and pipeline integrity checks.Why Other Options Are Wrong:
Combinations with I endorse retaliation, which is illogical.“Either I or III, and II” is invalid because I never follows while III clearly does.Common Pitfalls:
Assuming complaints are nuisances rather than critical alerts; they trigger due diligence.Final Answer:
Only II and III follow
Discussion & Comments