Fluid Mechanics MCQ on Non Uniform Flow in Channels

This is an MCQ-based quiz on the topic of Fluid Mechanics MCQ on Non Uniform Flow in Channels.

This includes the following:-

Gradually Varied Flow(GVF)
Gradually Varied Flow in Wide Rectangular Channels
Relation between Water Surface Slopes and Channel Bottom Slopes
Characteristics of Surface Profiles
Hydraulic Jump
Types of Hydraulic Jumps
Location of a Hydraulic Jump
Specific Force

Start Quiz

Which of the following assumptions about a GVF is false?

Channel is prismatic Pressure distribution is hydrostatic Flow characteristics change with time Roughness co efficient is constant

Calculate the total discharge though a rectangular channel having depth 2m and width 4m if the value of C = 50 and if the slope of the energy line is 0.00004.

1.53 m3/s 2.53 m3/s 3.53 m3/s 4.53 m3/s

Calculate Sf for a triangular channel if the depth of the channel is 5m and the side slope is 1H:2V. Given: Q = 5.80 m3/s , C = 40.

0.00010 0.00011 0.00012 0.00013

Calculate the discharge through a trapezoidal channel section if the depth of the channel is 3m and the base width is 3m. Given: C = 30, Sf = 0.0005, A = 12m2.

6.10 m3/s 7.10 m3/s 8.10 m3/s 9.10 m3/s

The discharge through a circular channel section having diameter 4m which is running half is 4.35 m3/s and the value of slope of energy line is Sf = 0.0003, calculate the value of C.

50 45 40 35

Calculate the rate of change of specific energy if the bed slope is 1 in 1000 and Sf = 0.00007.

6.3×10-3m 7.3×10-3m 8.3×10-3m 9.3×10-3m

Estimate the value of Sf if the value of bed slope is 1 in 800 and and dE⁄dx = 10-3m.

0.00015 0.00025 0.00035 0.00045

If the value of rate of change of specific energy is 7.79×10-4 m and Sf = 0.00013, calculate the value of bed slope.

1 in 1000 1 in 1100 1 in 1200 1 in 1300

Calculate the rate of change of depth of a rectangular channel having depth 1m and width 4m. Given: C = 40, S0 = 1/900, Sf = 0.0005

4.94×10-4 m 5.94×10-4 m 6.94×10-4 m 7.94×10-4 m

Calculate the rate of change of depth of a triangular channel if the depth is 4m and the side slope is1H:2V. Given:S0 = 1 in 1500;Sf = 0.00004 and n=0.010.

8.95×10-4m 9.95×10-4m 10.95×10-4m 11.95×10-4 m

Calculate the value of Sf for a trapezoidal channel having depth 2m, width 5m and side slope of 1H:1.5V. Given: dy/dx=1.18×10-3,S0 = 1 in 1000, C = 50.

0.00001 0.00002 0.00003 0.00004

Determine the rate of change of depth of a rectangular channel having dimensions 2m×3m and the velocity of flow is 2 m/s. Given:S0 = 1 in 500 and Sf = 0.0007.

0.63m 1.63m 2.63m 3.63m

Quiz/Test Summary

Title: Fluid Mechanics MCQ on Non Uniform Flow in Channels

Questions: 12

Contributed by:

NEO Mon, Apr 18, 2022 07:04 AM UTC

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