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In a catchment area of 5 square km, intensities of rainfall per hour for a five hours duration storm are: 10mm,15mm, 20mm,22mm and 5 mm respectively. What is the total volume of rainfall over the catchment? 3 (a) 450 x 103 m³ 3 (b) 500 x 103 m³ (c) 400 x 103 m³ (d) 360 x 103 m³ Correct option is 'd'. Can any one explain it.?
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In a catchment area of 5 square km, intensities of rainfall per hour f...
To find the total volume of rainfall over the catchment area, we need to calculate the total amount of rainfall for each hour and then sum them up.

Given:
Catchment area = 5 square km
Rainfall intensities per hour for a 5-hour duration storm: 10mm, 15mm, 20mm, 22mm, and 5mm

Let's calculate the volume of rainfall for each hour:

1. Hour 1: Intensity = 10mm
Volume of rainfall = Area x Intensity
Volume of rainfall = 5 km² x 10 mm
Converting mm to m: 10 mm = 0.01 m
Volume of rainfall = 5 km² x 0.01 m
Volume of rainfall = 50,000 m³

2. Hour 2: Intensity = 15mm
Volume of rainfall = Area x Intensity
Volume of rainfall = 5 km² x 15 mm
Converting mm to m: 15 mm = 0.015 m
Volume of rainfall = 5 km² x 0.015 m
Volume of rainfall = 75,000 m³

3. Hour 3: Intensity = 20mm
Volume of rainfall = Area x Intensity
Volume of rainfall = 5 km² x 20 mm
Converting mm to m: 20 mm = 0.02 m
Volume of rainfall = 5 km² x 0.02 m
Volume of rainfall = 100,000 m³

4. Hour 4: Intensity = 22mm
Volume of rainfall = Area x Intensity
Volume of rainfall = 5 km² x 22 mm
Converting mm to m: 22 mm = 0.022 m
Volume of rainfall = 5 km² x 0.022 m
Volume of rainfall = 110,000 m³

5. Hour 5: Intensity = 5mm
Volume of rainfall = Area x Intensity
Volume of rainfall = 5 km² x 5 mm
Converting mm to m: 5 mm = 0.005 m
Volume of rainfall = 5 km² x 0.005 m
Volume of rainfall = 25,000 m³

Now, let's sum up the volumes of rainfall for each hour:

Total volume of rainfall = Volume of rainfall in hour 1 + Volume of rainfall in hour 2 + Volume of rainfall in hour 3 + Volume of rainfall in hour 4 + Volume of rainfall in hour 5
Total volume of rainfall = 50,000 m³ + 75,000 m³ + 100,000 m³ + 110,000 m³ + 25,000 m³
Total volume of rainfall = 360,000 m³

Therefore, the total volume of rainfall over the catchment area is 360 x 10^3 m³, which corresponds to option (d).
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In a catchment area of 5 square km, intensities of rainfall per hour for a five hours duration storm are: 10mm,15mm, 20mm,22mm and 5 mm respectively. What is the total volume of rainfall over the catchment? 3 (a) 450 x 103 m³ 3 (b) 500 x 103 m³ (c) 400 x 103 m³ (d) 360 x 103 m³ Correct option is 'd'. Can any one explain it.?
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In a catchment area of 5 square km, intensities of rainfall per hour for a five hours duration storm are: 10mm,15mm, 20mm,22mm and 5 mm respectively. What is the total volume of rainfall over the catchment? 3 (a) 450 x 103 m³ 3 (b) 500 x 103 m³ (c) 400 x 103 m³ (d) 360 x 103 m³ Correct option is 'd'. Can any one explain it.? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about In a catchment area of 5 square km, intensities of rainfall per hour for a five hours duration storm are: 10mm,15mm, 20mm,22mm and 5 mm respectively. What is the total volume of rainfall over the catchment? 3 (a) 450 x 103 m³ 3 (b) 500 x 103 m³ (c) 400 x 103 m³ (d) 360 x 103 m³ Correct option is 'd'. Can any one explain it.? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a catchment area of 5 square km, intensities of rainfall per hour for a five hours duration storm are: 10mm,15mm, 20mm,22mm and 5 mm respectively. What is the total volume of rainfall over the catchment? 3 (a) 450 x 103 m³ 3 (b) 500 x 103 m³ (c) 400 x 103 m³ (d) 360 x 103 m³ Correct option is 'd'. Can any one explain it.?.
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