Rank (1-11 yrs) Rain-Fall Depth 1 2 3 4 5 6 7 8 9 10 11 2.5 2.04 1.53 1.33 1.3 1.27 1.02 0.97 0.85 0.76 0.52 Probability Return Period Intensity 0.077 0.154 0.231 0.308 0.385 0.462 0.538 0.615 0.692 0.769 0.846 13 7 4 3 3 2 2 2 1 1 1 54 5 4 3 3 M M N N N NH 3 3 2 2 2 2 1
Rank (1-11 yrs) Rain-Fall Depth 1 2 3 4 5 6 7 8 9 10 11 2.5 2.04 1.53 1.33 1.3 1.27 1.02 0.97 0.85 0.76 0.52 Probability Return Period Intensity 0.077 0.154 0.231 0.308 0.385 0.462 0.538 0.615 0.692 0.769 0.846 13 7 4 3 3 2 2 2 1 1 1 54 5 4 3 3 M M N N N NH 3 3 2 2 2 2 1
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:c) How many times a 1.53 rainfall depth will occur in 20 years?

Transcribed Image Text:Year
1945
1946
1947
1948
1949
Storm
number
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
1
2
Rainfall
depth
(in)
0.38
0.47
0.39
0.76
0.56
0.35
0.43
0.4
0.36
0.62
0.55
0.88
0.47
0.36
1.15
0.75
1.53
0.51
0.88
2.04
0.76
0.97
0.71
1.07
0.94
1.2
1.33
0.65
0.47
0.84
0.68
0.63
0.47
0.52
0.49
Year
1950
1951
1952
1953
Storm
number
1
2
2.5
2.04
1.53
1.33
1.3
3
4
1.27
1.02
0.97
0.85
0.76
0.52
5
1
2
3
5
6
1
2
3
4
5
6
7812345678
Rank (1-11 yrs) Rain-Fall Depth
1
2
3
4
5
6
7
8
9
10
11
Rainfall
depth
(in)
0.55
0.63
0.69
1.27
1.1
0.88
0.97
0.59
0.46
0.5
0.55
0.47
1.2
0.93
0.7
0.57
0.46
0.48
1.3
0.4
0.45
0.53
2.5
1.03
0.75
0.7
1
Year
1954
1955
Storm
number
0.462
0.538
0.615
0.692
0.769
0.846
1
2
3
4
1
23456789
10
11
Rainfall
depth
(in)
0.42
0.7
0.85
0.6
0.7
0.95
1.02
0.5
0.65
0.55
0.45
0.54
0.6
0.8
0.95
Probability Return Period
0.077
0.154
0.231
0.308
0.385
13
7
4
3
3
2
2
2
1
1
1
Intensity
5
543
4
3
3
3
3 ~ ~ ~ ~H
2
2
2
2
1
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