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Fluid Mechanics

Fluid Mechanics
Curve III in the above diagram represents a/an

Ideal plastic
None of these
Dilatent fluid
Pseudo plastic fluid

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Fluid Mechanics
The variable required to be known in correlations used for estimating the horse power of a centrifugal gas compressor and hence its cost are P. Inlet pressure Q. Compressor rpm R. Delivery pressure S. Volumetric flow rate at inlet.

P and R
R and S
P, Q and R
P, Rand S

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Fluid Mechanics
The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10⁻⁶m²/s).

0.24
24000
0.44
24

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Fluid Mechanics
The ratio of pressure forces to inertial forces is called the __________ number.

Euler
Reynold
Mach
Froude

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Fluid Mechanics
The ratio of inertial forces to elastic forces is called the __________ number.

Reynolds
Weber
Euler
Mach

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Fluid Mechanics
Medium viscosity lubricating oil can be most ideally pumped by a __________ pump.

Centrifugal
Plunger
Piston
Vane

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