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Fluid Mechanics

Fluid Mechanics
Dimension of kinematic viscosity is

L²T
L² . T⁻¹
MLT⁻¹
L² . T⁻²

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Fluid Mechanics
Water flow rate in a pipe of 3.5 metres diameter can be most economically and conveniently measured by a/an

Venturimeter
Orificemeter
Pitot tube
Rotameter

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Fluid Mechanics
The unit of velocity head is

ft-lb/ft³
ft-lbf/sec
ft-lb/sec
ft-lbf/lb

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Fluid Mechanics
For an incompressible fluid, the bulk modulus of elasticity is

1 N
∞ N/m²
0 N/m
5 kg/m³

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Fluid Mechanics
The equivalent diameter for pressure drop calculation for a duct of square cross-section is given by(where, x = each side of the square duct)

x
2x
x/2
πx

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Fluid Mechanics
In an incompressible flow of fluid, the fluid

Temperature remains constant
Compressibility is greater than zero
Is frictionless
Density does not change with pressure & temperature

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MORE MCQ ON Fluid Mechanics

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