Civil Engineering (CE) Exam > Civil Engineering (CE) Questions > A unit hydrograph hasa)one unit of peak disch...
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A unit hydrograph has
- a)one unit of peak discharge
- b)one unit of rainfall duration
- c)one unit of direct runoff
- d)one unit of the time base of direct runoff
Correct answer is option 'C'. Can you explain this answer?
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A unit hydrograph hasa)one unit of peak dischargeb)one unit of rainfal...
Unit Hydrograph Explanation:
Unit hydrograph is a hydrological tool used to represent the response of a watershed to a unit input of rainfall. It helps in predicting the direct runoff hydrograph resulting from a given rainfall event.
Key Components of a Unit Hydrograph:
- One unit of direct runoff: This is the key component of a unit hydrograph. It represents the total volume of direct runoff generated by a unit input of rainfall over a specific watershed area.
- One unit of peak discharge: The peak discharge is the maximum flow rate in the hydrograph. In a unit hydrograph, the peak discharge is normalized to one unit for ease of comparison and analysis.
- One unit of rainfall duration: This represents the duration of the unit rainfall input that results in the generation of the unit direct runoff. It helps in understanding the time distribution of runoff.
- One unit of the time base of direct runoff: The time base of direct runoff is the time interval between the start and end of direct runoff. In a unit hydrograph, this time base is normalized to one unit for standardization purposes.
Conclusion:
In summary, a unit hydrograph consists of one unit of direct runoff, which is the total volume of runoff generated by a unit input of rainfall. This component is crucial in understanding the response of a watershed to different rainfall events and is fundamental in hydrological analysis and modeling.
Unit hydrograph is a hydrological tool used to represent the response of a watershed to a unit input of rainfall. It helps in predicting the direct runoff hydrograph resulting from a given rainfall event.
Key Components of a Unit Hydrograph:
- One unit of direct runoff: This is the key component of a unit hydrograph. It represents the total volume of direct runoff generated by a unit input of rainfall over a specific watershed area.
- One unit of peak discharge: The peak discharge is the maximum flow rate in the hydrograph. In a unit hydrograph, the peak discharge is normalized to one unit for ease of comparison and analysis.
- One unit of rainfall duration: This represents the duration of the unit rainfall input that results in the generation of the unit direct runoff. It helps in understanding the time distribution of runoff.
- One unit of the time base of direct runoff: The time base of direct runoff is the time interval between the start and end of direct runoff. In a unit hydrograph, this time base is normalized to one unit for standardization purposes.
Conclusion:
In summary, a unit hydrograph consists of one unit of direct runoff, which is the total volume of runoff generated by a unit input of rainfall. This component is crucial in understanding the response of a watershed to different rainfall events and is fundamental in hydrological analysis and modeling.
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A unit hydrograph hasa)one unit of peak dischargeb)one unit of rainfall durationc)one unit of direct runoffd)one unit of the time base of direct runoffCorrect answer is option 'C'. Can you explain this answer?
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