If the time of concentration is 9 minutes, then the intensity of rainfall according to British Ministry of Health formula will be

A) 4 mm/hr B) 10 mm/hr C) 20 mm/hr D) 40 mm/hr

Answer & Solution

Correct Answer: Option D

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Bhanu Udhay 3 years ago

According to British Ministry of Health
For time of concentration between 5 and 20 min,
i =(760)/(t+10) mm/hr
And when time of concentration between 20 and 100 min,
i =(1020)/(t+10) mm/hr
It is given t=9min,
Therefore i=(760)/(9+10)= 40mm/hr

Shreyas Kumar 6 years ago

760/(t+10)=760/19=40

Ankit Agrawal 7 years ago

British ministry of health formula = 760/ t + 10
760 /9 +10 = 40mm /hr

Ankit Agrawal 7 years ago

Since time of concentration in between 5 to 20 minutes.
Since intensity of rain fall = 760 / t + 10
= 760/ 9 +10
=40 mm/hr

Muhammad Saqib 7 years ago

Please explain the answer,,,?

Rizu Riyaz 7 years ago

Plz eloborate the answer ???

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If the time of concentration is 9 minutes then the intensity...

If the time of concentration is 9 minutes, then the intensity of rainfall according to British Ministry of Health formula will be

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