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Fluid Mechanics

Fluid Mechanics
The ratio of pressure forces to inertial forces is called the __________ number.

Froude
Mach
Euler
Reynold

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Fluid Mechanics
Cavitation in a centrifugal pump results from

High discharge rate
High discharge pressure
Low barometric pressure
High discharge velocity

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Fluid Mechanics
A centrifugal pump used to pump water is used to pump an oil with specific gravity of 0.8 at the same rate. The power consumption will now

Data insufficient to predict
Remain same
Decrease
Increase

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Fluid Mechanics
Curve III in the above diagram represents a/an

Pseudo plastic fluid
Dilatent fluid
None of these
Ideal plastic

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Fluid Mechanics
Pressure drag does not depend upon the

Pressure of main flow only
Roughness of surface of the body
Length of the body in flow direction
All of these

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

0.01
1
10
0.1

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MORE MCQ ON Fluid Mechanics

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