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If the base period of a 6-hour hydrograph of a basin is 84 hours, then a 12 hours unit hydrograph derived from this 6 hour unit hydrograph wii! have a base period of
- a)72 hours
- b)78 hours .
- c)84 hours
- d)90 hours
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
If the base period of a 6-hour hydrograph of a basin is 84 hours, then...
Understanding Hydrographs
In hydrology, hydrographs represent the flow of water over time at a specific location. The unit hydrograph is a vital tool used to analyze the response of a watershed to rainfall.
Base Period of Hydrographs
- The base period of a hydrograph refers to the time duration over which the flow is measured.
- For a 6-hour hydrograph, the base period is indicated as 84 hours.
Deriving Unit Hydrographs
- When deriving a 12-hour unit hydrograph from a 6-hour unit hydrograph, the base period changes.
- The relationship between different unit hydrographs can be understood through the concept of superposition and scaling.
Calculating the Base Period for the 12-Hour Unit Hydrograph
- To derive the 12-hour unit hydrograph, the base period is extended.
- The original hydrograph (6-hour) has a base period of 84 hours.
- When creating a 12-hour unit hydrograph, the base period is adjusted to accommodate the new duration.
Final Base Period Determination
- The base period for the new unit hydrograph can be calculated as:
- Original Base Period + (Difference in Time Durations).
- Therefore, 84 hours + 6 hours (since 12 hours - 6 hours) gives us 90 hours.
Conclusion
- The correct answer is option 'D' (90 hours) because the base period of the derived 12-hour unit hydrograph is indeed extended to 90 hours to accurately represent the watershed's response over the new duration.
In hydrology, hydrographs represent the flow of water over time at a specific location. The unit hydrograph is a vital tool used to analyze the response of a watershed to rainfall.
Base Period of Hydrographs
- The base period of a hydrograph refers to the time duration over which the flow is measured.
- For a 6-hour hydrograph, the base period is indicated as 84 hours.
Deriving Unit Hydrographs
- When deriving a 12-hour unit hydrograph from a 6-hour unit hydrograph, the base period changes.
- The relationship between different unit hydrographs can be understood through the concept of superposition and scaling.
Calculating the Base Period for the 12-Hour Unit Hydrograph
- To derive the 12-hour unit hydrograph, the base period is extended.
- The original hydrograph (6-hour) has a base period of 84 hours.
- When creating a 12-hour unit hydrograph, the base period is adjusted to accommodate the new duration.
Final Base Period Determination
- The base period for the new unit hydrograph can be calculated as:
- Original Base Period + (Difference in Time Durations).
- Therefore, 84 hours + 6 hours (since 12 hours - 6 hours) gives us 90 hours.
Conclusion
- The correct answer is option 'D' (90 hours) because the base period of the derived 12-hour unit hydrograph is indeed extended to 90 hours to accurately represent the watershed's response over the new duration.
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If the base period of a 6-hour hydrograph of a basin is 84 hours, then a 12 hours unit hydrograph derived from this 6 hour unit hydrograph wii! have a base period ofa)72 hoursb)78 hours .c)84 hoursd)90 hoursCorrect answer is option 'D'. Can you explain this answer? for Civil Engineering (CE) 2025 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about If the base period of a 6-hour hydrograph of a basin is 84 hours, then a 12 hours unit hydrograph derived from this 6 hour unit hydrograph wii! have a base period ofa)72 hoursb)78 hours .c)84 hoursd)90 hoursCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the base period of a 6-hour hydrograph of a basin is 84 hours, then a 12 hours unit hydrograph derived from this 6 hour unit hydrograph wii! have a base period ofa)72 hoursb)78 hours .c)84 hoursd)90 hoursCorrect answer is option 'D'. Can you explain this answer?.
If the base period of a 6-hour hydrograph of a basin is 84 hours, then a 12 hours unit hydrograph derived from this 6 hour unit hydrograph wii! have a base period ofa)72 hoursb)78 hours .c)84 hoursd)90 hoursCorrect answer is option 'D'. Can you explain this answer? for Civil Engineering (CE) 2025 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about If the base period of a 6-hour hydrograph of a basin is 84 hours, then a 12 hours unit hydrograph derived from this 6 hour unit hydrograph wii! have a base period ofa)72 hoursb)78 hours .c)84 hoursd)90 hoursCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the base period of a 6-hour hydrograph of a basin is 84 hours, then a 12 hours unit hydrograph derived from this 6 hour unit hydrograph wii! have a base period ofa)72 hoursb)78 hours .c)84 hoursd)90 hoursCorrect answer is option 'D'. Can you explain this answer?.
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If the base period of a 6-hour hydrograph of a basin is 84 hours, then a 12 hours unit hydrograph derived from this 6 hour unit hydrograph wii! have a base period ofa)72 hoursb)78 hours .c)84 hoursd)90 hoursCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for If the base period of a 6-hour hydrograph of a basin is 84 hours, then a 12 hours unit hydrograph derived from this 6 hour unit hydrograph wii! have a base period ofa)72 hoursb)78 hours .c)84 hoursd)90 hoursCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of If the base period of a 6-hour hydrograph of a basin is 84 hours, then a 12 hours unit hydrograph derived from this 6 hour unit hydrograph wii! have a base period ofa)72 hoursb)78 hours .c)84 hoursd)90 hoursCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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