1
GATE CE 2022 Set 1
MCQ (Single Correct Answer)
+1
-0.33

A rectangular channel with Gradually Varied Flow (GVF) has a changing bed slope. If the change is from a steeper slope to a steep slope, the resulting GVF profile is

A
S3
B
S1
C
S2
D
either S1 or S2, depending on the magnitude of the slopes
2
GATE CE 2022 Set 1
Numerical
+1
-0

Depth of water flowing in a 3 m wide rectangular channel is 2 m. The channel carries a discharge of 12 m3/s. Take g = 9.8 m/s2. The bed width (in m) at contraction, which just causes the critical flow, is _________ without changing the upstream water level. (round off to two decimal places)

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