The horizontal component of the force on a curved surface is equal to weight of

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Question
The horizontal component of the force on a curved surface is equal to
Options
A. weight of liquid vertically below the curved surface
B. force on a vetical projection of the curved surface
C. product of pressure at its centroid and the area
D. weight of liquid retained by the curved area.

Correct Answer

force on a vetical projection of the curved surface

Hydraulics problems

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2. When a body is totally or partially immersed in a fluid, it is buoyed up by a force equal to
Options
A. weight of the body
B. weight of the fluid displaced by the body
C. weight of the body and fluild displaced by the body
D. difference of weights of the fluid displaced and that of the body
E. none of these.

7. A short tube mouthpiece will not run full at its outlet if the head under which the orifice works, is
Options
A. less than 12.2 m of the water
B. more than 12.2 m of the water
C. equal of 12.2 m of water
D. none of these.

9. A syphon is used
Options
A. to connect water reservoirs at different levels intervened by a hill
B. to supply water to a town from higher level to lower level
C. to fill up a tank with water at higher level from a lower level
D. none of these.

10. A pipe of 0.1 m² cross sectional area suddenly enlarges to 0.3 m² cross-sectional area. If the discharge of the pipe is 0.3 m³ /sec, the head loss is
Options
A. 2/g m of water
B. g/2 m of water
C. 1g m of water
D. g m of water.

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