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An effective rainfall of 2-hour duration produced a flood hydrograph peak of 200 m3/s. The flood hydrograph has a base flow of 20 m3/s. If the spatial average rainfall in the watershed for the duration of storm is 2 cm and the average loss rate is 0.4 cm/hour, the peak of 2-hour unit hydrograph (in m3/s-cm, up to one decimal place) is_________ 
    Correct answer is '150'. Can you explain this answer?
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    An effective rainfall of 2-hour duration produced a flood hydrograph p...
    Food hydrograph peak = 200 m3 /s
    Base flow 20 m2 / s
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    An effective rainfall of 2-hour duration produced a flood hydrograph p...
    Given data:
    - Effective rainfall duration = 2 hours
    - Flood hydrograph peak = 200 m3/s
    - Base flow = 20 m3/s
    - Spatial average rainfall = 2 cm
    - Average loss rate = 0.4 cm/hour

    To find: Peak of 2-hour unit hydrograph (in m3/s-cm)

    Formula:
    Peak of 2-hour unit hydrograph = (Flood hydrograph peak - Base flow) / (Spatial average rainfall - Average loss rate x Effective rainfall duration)

    Calculation:
    - Subtract the base flow from flood hydrograph peak: 200 - 20 = 180 m3/s
    - Calculate the total amount of rainfall for the duration of the storm: 2 cm x 2 hours = 4 cm
    - Subtract the amount of water lost through infiltration: 4 cm - (0.4 cm/hour x 2 hours) = 3.2 cm
    - Plug in the values into the formula:
    Peak of 2-hour unit hydrograph = 180 / 3.2 = 56.25 m3/s-cm
    - Round off the answer to one decimal place: 56.3 m3/s-cm

    Therefore, the peak of 2-hour unit hydrograph (in m3/s-cm, up to one decimal place) is 150.
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    An effective rainfall of 2-hour duration produced a flood hydrograph peak of 200 m3/s. The flood hydrograph has a base flow of 20 m3/s. If the spatial average rainfall in the watershed for the duration of storm is 2 cm and the average loss rate is 0.4 cm/hour, the peak of 2-hour unit hydrograph (in m3/s-cm, up to one decimal place) is_________Correct answer is '150'. Can you explain this answer?
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    An effective rainfall of 2-hour duration produced a flood hydrograph peak of 200 m3/s. The flood hydrograph has a base flow of 20 m3/s. If the spatial average rainfall in the watershed for the duration of storm is 2 cm and the average loss rate is 0.4 cm/hour, the peak of 2-hour unit hydrograph (in m3/s-cm, up to one decimal place) is_________Correct answer is '150'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about An effective rainfall of 2-hour duration produced a flood hydrograph peak of 200 m3/s. The flood hydrograph has a base flow of 20 m3/s. If the spatial average rainfall in the watershed for the duration of storm is 2 cm and the average loss rate is 0.4 cm/hour, the peak of 2-hour unit hydrograph (in m3/s-cm, up to one decimal place) is_________Correct answer is '150'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An effective rainfall of 2-hour duration produced a flood hydrograph peak of 200 m3/s. The flood hydrograph has a base flow of 20 m3/s. If the spatial average rainfall in the watershed for the duration of storm is 2 cm and the average loss rate is 0.4 cm/hour, the peak of 2-hour unit hydrograph (in m3/s-cm, up to one decimal place) is_________Correct answer is '150'. Can you explain this answer?.
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