Civil Engineering - Water Resources Engineering - Discussion
Discussion Forum : Water Resources Engineering - Section 2 (Q.No. 27)
27.
The rate of rainfall for successive 10 minute periods of a 60 minute duration storm, are shown in the below figure. If the value of φindex is 3 cm/hour, the run off will be
Discussion:
16 comments Page 1 of 2.
Riajul said:
9 years ago
I think the answer should be 4.75cm.
Mughal saltanat said:
9 years ago
Answer should be 2.66 cm.
Siva said:
9 years ago
(6 + 10 + 8 + 7) * 10/60 - (3 * 40/60) = 3.
(1)
Kishan said:
9 years ago
Please, Give explanation with formula.
(1)
Rajashekhar said:
8 years ago
You have to consider only graph above phi index it will be 19.
Then runoff = (19 * 10)/60 = 3.1 approximately 3.
Then runoff = (19 * 10)/60 = 3.1 approximately 3.
(1)
Sikha said:
8 years ago
Can't understand.
Can anyone provide some formula to solve this?
Can anyone provide some formula to solve this?
(1)
KRUNAL said:
7 years ago
From the graph, the upper part of φindex is called runoff and lower part is called infiltration.
Values are in min so we get convert its by divided by60 in hr.
Upper part s values are from the graph are 6, 10, 8, 7 for 10 min period.
R= (6-Πindex) *period/60 + (10-3) *10/60+ (8-3) *10/60+ (7-3) *10/60.
So we can get the answer 3.
Values are in min so we get convert its by divided by60 in hr.
Upper part s values are from the graph are 6, 10, 8, 7 for 10 min period.
R= (6-Πindex) *period/60 + (10-3) *10/60+ (8-3) *10/60+ (7-3) *10/60.
So we can get the answer 3.
(5)
Raaj said:
7 years ago
Thank you @Krunal, @Rajshekhar and @Shiva.
IRFAN said:
7 years ago
Thanks for the good explanation @Krunal.
Yash said:
7 years ago
φindex=(P-R)/tr.
where, tr= rainfall time (10 minutes).
R= runoff.
P= storm time (total time = 60minute).
and φindex = 3 (given).
By converting mm to cm we will get the answer is 3.
where, tr= rainfall time (10 minutes).
R= runoff.
P= storm time (total time = 60minute).
and φindex = 3 (given).
By converting mm to cm we will get the answer is 3.
(1)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers