The most familiar form of Bernoulli's equation, is = constant head none of these

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Question
The most familiar form of Bernoulli's equation, is
Options
A.
B.
C. = constant head
D. none of these.

Correct Answer

= constant head

Hydraulics problems

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1. 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.

3. 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.

5. 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.

6. 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.

7. 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.

8. Differential manometers are used to measure
Options
A. pressure in water channels, pipes, etc.
B. difference in pressure at two points
C. atmospheric pressure
D. very low pressure.

9. The property of steam function ? is :
Options
A. ? is constant everwhere on any stream line
B. the flow around any path in the fluid is zero for continuous flow
C. the rate of change of ? with distance in an arbitrary direction, is proportional to the component of velocity normal to that direction
D. the velocity vector may be found by differentiating the stream function
E. all the above.

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