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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The coefficient of discharge for an external mouthpiece depends upon

Velocity of liquid
Area of mouthpiece
Length of mouthpiece
Pressure of liquid

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Hydraulics and Fluid Mechanics in ME
The kinematic viscosity of an oil (in stokes) whose specific gravity is 0.95 and viscosity 0.011 poise, is

0.0611 stoke
0.0116 stoke
0.611 stoke
0.116 stoke

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Hydraulics and Fluid Mechanics in ME
Which type of the pump is different from others in the same group?

Screw pump
Cam and piston pump
Gear pump
Plunger pump

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Hydraulics and Fluid Mechanics in ME
Coefficient of discharge for a totally submerged orifice as compared to that for an orifice discharging free is

equal
nearly half
slightly less
slightly more

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Hydraulics and Fluid Mechanics in ME
The increase in pressure at the outer edge of a drum of radius (r) completely filled up with liquid of density (ρ) and rotating at (ω) rad/s is

ρ ω2 r2/4
ρ ω2 r2
ρ ω2 r2/2
2ρ ω2 r2

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Hydraulics and Fluid Mechanics in ME
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.

3H/4
H/3
H/2
2H/3

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