As per IS 2296-1982, water is classified into five categories. Which of the following does Category E represent?
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A.
Surface water for irrigation
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B.
Surface water for aquaculture
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C.
Surface water for drinking
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D.
Surface water for outdoor bathing
Correct Answer:
A. Surface water for irrigation
Explanation:
The correct answer is Surface water for irrigation.
According to the Indian Standard IS 2296-1982, surface water is categorized into five distinct classes (A through E) based on its quality and intended application. Category E specifically designates water that is suitable for agricultural irrigation, industrial cooling systems, and regulated waste disposal. This classification ensures that the water meets necessary safety thresholds—such as specific pH levels and electrical conductivity—to prevent soil degradation or crop damage. While Class A is reserved for the highest quality drinking water requiring only disinfection, Class E provides a standard for secondary uses that support essential industrial and farming activities.
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