Engineering Questions with Answers - Multiple Choice Questions
MCQs on Geometrical Properties of Triangular Section – 2
1 - Question
Determine the Hydraulic depth for a triangular channel having side slope of 1H:3V and depth 15m.
a) 30m
b) 15m
c) 7.5m
d) 3.75m
View Answer
c
Explanation: Hydraulic Depth = y/2
= 15/2
= 7.5m.
2 - Question
Calculate the Hydraulic Radius for a triangular channel having side slope 2H:4V and a depth of 3m.
a) 0.68m
b) 0.67m
c) 0.66m
d) 0.65m
View Answer
3 - Question
The Hydraulic Depth of a triangular channel is 5m, calculate the normal depth of the channel.
a) 8m
b) 10m
c) 12m
d) 14m
View Answer
b
Explanation: D = y/2
y = 2D = 10m.
4 - Question
The hydraulic radius of a triangular section is 0.45m and the normal depth of the channel is 2m, calculate the side slope of the channel.
a) 1/4
b) 1/3
c) 1/2
d) 1
View Answer
5 - Question
The ratio between hydraulic radius and hydraulic depth of a triangular channel is 31/100, calculate the side slope of the channel.
a) 1⁄2
b) 1⁄3
c) 1⁄4
d) 2⁄3
View Answer
6 - Question
Calculate the wetted perimeter of a triangular channel section having a depth of 5m and the side slope is equal to tan 30°.
a) 9.54m
b) 10.54m
c) 11.54m
d) 12.54m
View Answer
7 - Question
The discharge of water through a triangular section is 90m3⁄s and velocity of flow is 5 m⁄s. Calculate the hydraulic depth of the channel having a side slope 1⁄2.
a) 2m
b) 3m
c) 4m
d) 5m
View Answer
8 - Question
The top width of a triangular channel section is 4m and the depth of the section is 8m, calculate the wetted perimeter of the channel.
a) 16.5m
b) 17.5m
c) 18.5m
d) 19.5m
View Answer
9 - Question
In the given figure the vertical angle is 60°, calculate the wetted area of the channel.
