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Fluid Mechanics

Fluid Mechanics
Pressure drop in a fluidised bed reactor is __________ that in a similar packed bed reactor.

Less than
Same as
More than
None of these

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Fluid Mechanics
Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will

Increase
Remain unchanged
Data insufficient to predict relative pressure drop
Decrease

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Fluid Mechanics
Bernoull's equation does not apply to the functioning of a/an

Orificem
Venturimeter
None of these
Pitot tube

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Fluid Mechanics
Uniform fluid flow occurs, when the derivative of the flow variables satisfy the following condition.

∂/∂t = constant
∂/∂t = constant
∂/∂s = 0
∂/∂t = 0

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Fluid Mechanics
Cd is always __________ Cc.

Either more or less than
Greater than
Less than
Equal to

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Fluid Mechanics
Net positive suction head (NPSH) of a centrifugal pump must be

Less than the vapour pressure of the liquid
Less than barometric pressure
Equal to the vapour pressure of the liquid
Greater than the vapour pressure of the liquid

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