Explore topic-wise MCQs in Fluid Mechanics.

This section includes 19 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 ratio of section factor and hydraulic depth in a trapezoidal section is 324/25, calculate the top width if the total wetted area of the channel is 24m2.

A. 4m
B. 5m
C. 6m
D. 7m
Answer» E.
Discussion
2.

The wetted area of a trapezoidal section is 15m^2 and the top width is 6m, calculate the section factor.

A. 23.72
B. 24.72
C. 25.72
D. 26.72
Answer» B. 24.72
Discussion
3.

The top width of a trapezoidal channel is 12m, the bottom width of the channel is 6m and the side slope is 1H:2V, calculate the wetted perimeter.

A. 17.41m
B. 18.41m
C. 19.41m
D. 20.41m
Answer» D. 20.41m
Discussion
4.

The product Zy in a Trapezoidal channel is 2 and the side slope is1/2. Calculate the wetted perimeter of the channel section if the wetted is 32m2.

A. 13.94m
B. 14.94m
C. 15.94m
D. 16.94m
Answer» C. 15.94m
Discussion
5.

Calculate the top width of a trapezoidal channel section having a side slope1H:4V, base of 5m and the wetted area is 17.25m2.

A. 5.5m
B. 6.5m
C. 7.5m
D. 8.5m
Answer» C. 7.5m
Discussion
6.

Calculate the side slope of a trapezoidal channel section having base 8m, depth 4m and the hydraulic radius is 2.36m.

A. 1⁄6
B. 1⁄3
C. 1⁄2
D. 1⁄4
Answer» D. 1⁄4
Discussion
7.

Estimate the discharge of water in a trapezoidal channel section having a depth 3m, width of 6m, side slope of 1H:2V and velocity of water is 2m⁄s.

A. 40m3⁄s
B. 45m3⁄s
C. 50m3⁄s
D. 55m3⁄s
Answer» C. 50m3⁄s
Discussion
8.

What is the total wetted area of a trapezoidal section of depth y base B and side slope Z?

A. Z(B+Zy)
B. y(B+Zy)
C. Zy2
D. Zy
Answer» C. Zy2
Discussion
9.

CALCULATE_THE_TOP_WIDTH_OF_A_TRAPEZOIDAL_CHANNEL_SECTION_HAVING_A_SIDE_SLOPE1H:4V,_BASE_OF_5M_AND_THE_WETTED_AREA_IS_17.25M2.?$

A. 5.5m
B. 6.5m
C. 7.5m
D. 8.5m
Answer» C. 7.5m
Discussion
10.

The top width of a trapezoidal channel is 12m, the bottom width of the channel is 6m and the side slope is 1H:2V, calculate the wetted perimeter.$

A. 17.41m
B. 18.41m
C. 19.41m
D. 20.41m
Answer» D. 20.41m
Discussion
11.

The_product_Zy_in_a_Trapezoidal_channel_is_2_and_the_side_slope_is1/2._Calculate_the_wetted_perimeter_of_the_channel_section_if_the_wetted_is_32m2.$

A. 13.94m
B. 14.94m
C. 15.94m
D. 16.94m
Answer» C. 15.94m
Discussion
12.

The ratio of section factor and hydraulic depth in a trapezoidal section is 324/25, calculate the top width if the total wetted area of the channel is 24m2.

A. 4m
B. 5m
C. 6m
D. 7m
Answer» E.
Discussion
13.

The_wetted_area_of_a_trapezoidal_section_is_15m^2_and_the_top_width_is_6m,_calculate_the_section_factor.

A. 23.72
B. 24.72
C. 25.72
D. 26.72
Answer» B. 24.72
Discussion
14.

Calculate the side slope of a trapezoidal channel section having base 8m, depth 4m and the hydraulic radius is 2.36m?

A. 1‚ÅÑ6
B. 1‚ÅÑ3
C. 1‚ÅÑ2
D. 1‚ÅÑ4
Answer» D. 1‚Äö√Ñ√∂‚àö√ñ‚àö√´4
Discussion
15.

Estimate the discharge of water in a trapezoidal channel section having a depth 3m, width of 6m, side slope of 1H:2V and velocity of water is 2m‚ÅÑs.$

A. 40m3‚ÅÑs
B. 45m3‚ÅÑs
C. 50m3‚ÅÑs
D. 55m3‚ÅÑs
Answer» C. 50m3‚Äö√Ñ√∂‚àö√ñ‚àö√´s
Discussion
16.

Calculate the section factor of a trapezoidal channel section having depth 8m, base 5m and side slope 1H:2V.

A. 139.44
B. 149.44
C. 159.44
D. 169.44
Answer» E.
Discussion
17.

Calculate the hydraulic radius of a trapezoidal section having depth 5m, side slope 1H:3V and base of 6m.

A. 1.32m
B. 2.08m
C. 1.08m
D. 2.32m
Answer» E.
Discussion
18.

Calculate the hydraulic depth of a trapezoidal channel section having depth 4m, base of 5m and side slope 1H:2V.

A. 2.11m
B. 3.11m
C. 4.11m
D. 5.11m
Answer» C. 4.11m
Discussion
19.

What is the top width of a trapezoidal channel having depth y, side slope Z and base B?

A. 2Zy
B. Zy
C. B+Zy
D. B+2Zy
Answer» E.
Discussion