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Hydraulics and Fluid Mechanics in ME

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

Plunger pump
Screw pump
Gear pump
Cam and piston pump

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Hydraulics and Fluid Mechanics in ME
Ratio of inertia force to elastic force is known as

Mach number
Reynold’s number
Froude number
Weber’s number

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Hydraulics and Fluid Mechanics in ME
The wake

always occurs before a separation point
always occurs after a separation point
is a region of high pressure intensity
None of these

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Hydraulics and Fluid Mechanics in ME
Metacentre is the point of intersection of

All of these
buoyant force and the center line of body
vertical upward force through e.g. of body and center line of body
mid point between e.g. and center of buoyancy

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends upon the

Compressibility of the liquid
Weight of the liquid displaced
Pressure with which the liquid is displaced
Viscosity of the liquid

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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

slightly more
equal
slightly less
nearly half

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