GATE CE Hydraulics PYQs & Answers — Page 5

Questions 41–46 of 46. Imported answers require independent review unless marked reviewed.

Topic practice 46 questionsPage 5 of 5

Variation of water depth (

) in a gradually varied open channel flow is given by the first order differential equation

Given initial condition:

m. The depth (in m, up to three decimal places) of flow at a downstream section at

m from one calculation step of Single Step Euler Method is _____

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

In a laboratory, a flow experiment is performed over a hydraulic structure. The measured values of discharge and velocity are 0.05 m³/s and 0.25 m/s, respectively. If the full scale structure (30 times bigger) is subjected to a discharge of 270 m³/s, then the time scale (model to full scale) value (up to two decimal places) is _____

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

If a centrifugal pump has an impeller speed of

(in rpm), discharge

(in m³/s) and the total head

(in m), the expression for the specific speed

of the pump is given by

Your answerChoose one option.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

A 1 m wide rectangular channel has a bed slope of 0.0016 and the Manning’s roughness coefficient is 0.04. Uniform flow takes place in the channel at a flow depth of 0.5 m. At a particular section, gradually varied flow (GVF) is observed and the flow depth is measured as 0.6 m. The GVF profile at that section is classified as

Your answerChoose one option.

S₁

S₂

M₁

M₂

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

A 1 m wide rectangular channel carries a discharge of 2 m

/s. The specific energy-depth diagram is prepared for the channel. It is observed in this diagram that corresponding to a particular specific energy, the subcritical depth is twice the supercritical depth. The subcritical depth (in meters, up to two decimal places) is equal to

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

A sluice gate used to control the flow in a horizontal channel of unit width is shown in the figure.

Diagram for Civil Engineering question 48

It is observed that the depth of flow is 1.0 m upstream of the gate, while the depth is 0.2 m downstream of the gate. Assuming a smooth flow transition across the sluice gate, i.e., without any energy loss, and the acceleration due to gravity as 10 m/s

, the discharge (in m

/s, up to two decimal places) passing under the sluice gate is

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

GATE CE Hydraulics PYQs

Question 39

Question 50

Question 7

Question 31

Question 46

Question 48