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Fluid Mechanics

Fluid Mechanics
Velocity at a certain point in case of streamline flow is

Both A & B
Constant
Independent of time
Neither A nor B

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Fluid Mechanics
Momentum transfer in laminar flow of fluids results due to the

Viscosity
Velocity gradient
Density
None of these

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

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Fluid Mechanics
If two capillary tubes of dia 0.5 mm and 1 mm are dipped in a pot containing mercury, then the rise of mercury is

Greater in 1 mm dia tube
Greater in 0.5 mm dia tube
Zero in both the tubes
Same in both the tubes

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Fluid Mechanics
Multistage compressors are used in industry, because they

Reduce the size requirement
Resemble closely to isothermal compression
Reduce the cost of compressor
Are easy to control

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

Centrifugal
Vane
Plunger
Piston

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