Given below are two statements, one is... | Renewable Energy Engineering

ICAR JRF Renewable Energy Engineering 29 Jun 2024Shift 1

Assertion & Reason +4 −1

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).

Assertion (A) : The lower and upper limit of the curve number corresponds to 0 and 100

Reason (R) : The lower curve number corresponds to highest runoff potential and indicates an impermeable surface.

In light of the above statements, choose the correct answer from the options given below.

Both (A) and (R) are true and (R) is the correct explanation of (A) Correct Both (A) and (R) are true but (R) is NOT the correct explanation of (A). (A) is true but (R) is false (A) is false but (R) is true.

SCS-CN Runoff Curve Number Theory:
Assertion (A): The lower and upper limit of the curve number corresponds to 0 and 100. $\implies$ True.
The dimensionless runoff Curve Number ($CN$) ranges theoretically from 0 to 100.
Reason (R): The lower curve number corresponds to highest runoff potential and indicates an impermeable surface. $\implies$ False.
$CN = 100$ represents completely impermeable surfaces (water bodies, asphalt) with 100% runoff potential. A low $CN$ (approaching 0) indicates maximum soil infiltration and minimum runoff potential.
Conclusion: In official key, Option 1 was keyed; scientifically (A) is true but (R) is false.

Correct option: (1) Both (A) and (R) are true and (R) is the correct explanation of (A)

Explanation not matching this question? क्या व्याख्या इस प्रश्न से मेल नहीं खा रही? Report

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