Explore topic-wise MCQs in Fluid Mechanics.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Fluid Mechanics knowledge and support exam preparation. Choose a topic below to get started.

1.

The dimensions of a rectangular channel is 3m 2m and the bed slope of the channel is 1 in 1000, calculate the rate of change of depth if the rate of change of specific energy is 2 10-5m. Given: n = 0.010

A. 1.43 10<sup>-5</sup>m
B. 2.43 10<sup>-5</sup>m
C. 3.43 10<sup>-5</sup>m
D. 4.43 10<sup>-5</sup>m
Answer» D. 4.43 10<sup>-5</sup>m
Discussion
2.

Calculate the slope of the energy line if the bed slope of the channel is 4.81 10-5 if the depths of the channel are 2.7m and 4.7m and velocities are 1 m/s and 0.5m/s respectively.

A. 0.00002
B. 0.00003
C. 0.00004
D. 0.00005
Answer» E.
Discussion
3.

If the depths in a channel are 2m and 4m and the velocities are 0.5 m/s and 0.3m/s, calculate the difference between specific energies.

A. 2m
B. 3m
C. 4m
D. 5m
Answer» B. 3m
Discussion
4.

What is the expression for the length of the backwater curve?

A. L = ( frac{E_2-E_1}{S_f-S_0} )
B. L = ( frac{E_2-E_1}{S_f} )
C. L = ( frac{E_2-E_1}{S_0-S_f} )
D. L = ( frac{E_2-E_1}{S_0} )
Answer» D. L = ( frac{E_2-E_1}{S_0} )
Discussion