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The type of flood routing (Group I) and the equation(s) used for the purpose (Group II) are given below. Group I P Hydrologic flood routing Q Hydraulic flood routing Group II 1. Continuity equation 2. Momentum equation 3. Energy equation The correct match is

1. P - 1; Q - 1, 2 & 3
2. P - 1; Q - 1 & 2 only
3. P - 1 & 2; Q - 1 only
4. P - 1 & 2; Q - 1 & 2

Correct answer: P - 1; Q - 1 & 2 only

Solution

Hydrologic flood routing primarily relies on the continuity equation to analyze the flow of water through a watershed, while hydraulic flood routing utilizes both the continuity and momentum equations to describe the flow in open channels, making option B the correct match.

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