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Fluid Mechanics

Fluid Mechanics
The resistance wire used in a hot wire anemometer for conducting electrical current is made of

Tungsten
Aluminium
Chromium
Copper

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Fluid Mechanics
The length of the tube necessary for the boundary layer to reach the centre of the tube and for fully developed flow to be established is called the __________ length.

Prandtl mixing
Transition
Equivalent
None of these

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Fluid Mechanics
In case of supersonic flow of a fluid through pipeline, the 'Mach number' is

1
< 1
> 1

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Fluid Mechanics
Cp/Cv is termed as

Weber number
Prandtl number
Adiabatic constant
Mach number

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Fluid Mechanics
A lubricant 100 times more viscous than water would have a viscosity (in Pa.s)

10
0.1
0.01
1

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Fluid Mechanics
The fluid velocity varies as the square root of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop fo __________ fluid.

Dilatant
Bingham plastic
Pseudoplastic
Newtonion

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