In order to measure the flow with a venturimeter, it is installed in horizontal

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Question
In order to measure the flow with a venturimeter, it is installed in
Options
A. horizontal line
B. inclined line with flow upwards
C. inclined line with flow downwards
D. any direction and in any location

Correct Answer

any direction and in any location

Hydraulics and Fluid Mechanics problems

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4. If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in
Options
A. neutral equilibrium
B. stable equilibrium
C. unstable equilibrium
D. none of these

5. Coefficient of contraction is the ratio of
Options
A. actual velocity of jet at vena contracta to the theoretical velocity
B. loss of head in the orifice to the head of water available at the exit of the orifice
C. actual discharge through an orifice to the theoretical discharge
D. area of jet at vena contracta to the area of orifice

7. The length AB of a pipe ABC in which the liquid is flowing has diameter (d₁) and is suddenly enlarged to diameter (d₂) at B which is constant for the length BC. The loss of head due to sudden enlargement is
Options
A.
B.
C.
D.

8. The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch)
Options
A. C_d x b2gH
B. C_d x b2g x H
C. C_d x b2g x H^3/2
D. C_d x b2g x H²

9. In an external mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to 0.89 times the height of the liquid, above the vena contracta.
Options
A. less than
B. more than

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