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Fluid Mechanics

Fluid Mechanics
Permanent loss in a venturimeter is about __________ percent of the pressure drop in theupstream cone.

70
1
40
10

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Fluid Mechanics
Interstage coolers are provided in a multistage compressor to

Save power in compressing a given volume to a given pressure
Achieve the exact delivery pressure
None of these
Cool the delivered air

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Fluid Mechanics
For laminar flow through a closed conduit

Vmax = Vav
Vmax = 1.5Vav
Vmax = 0.5Vav
Vmax = 2Vav

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Fluid Mechanics
Bernoulli's equation is not applicable, when the flow is

Viscous
Incompressible
Irrotational
All of these

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Fluid Mechanics
Pressure gradient in the pipe flow is influenced by the

Velocity of the fluid
Density & viscosity of the fluid
All of these
Diameter of pipe

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Fluid Mechanics
The inherent characteristic of an equal percentage valve relating flow rate 'q' with valve stem movement 'x' are described by the equation

dq/dx = Kq²
dq/dx = K.q
dq/dx = K
dq/dx = K/q

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