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Fluid Mechanics

Fluid Mechanics
For pipes that must be broken at intervals for maintenance, the connector used should be a/an

Elbow
Union
Tee
Reducer

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Fluid Mechanics
For Laminar flow through a packed bed, the pressure drop is proportional to (Vs is the superficial liquid velocity and Dp is the particle diameter)

Vs/Dp²
Vs²/Dp³
Vs²/Dp²
Vs/Dp³

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

Mach
Euler
Reynolds
Weber

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Fluid Mechanics
Interstage coolers are provided in a multistage compressor to

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

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

1
0.01
0.1
10

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Fluid Mechanics
Power number is the ratio of

Inertial stress to drag stress
Inertial stress to gravitational stress
Drag stress to inertial stress
Gravitational stress to drag stress

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MORE MCQ ON Fluid Mechanics

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