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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of bulk modulus of a fluid is required to determine

Mach number
Froude's number
Euler's number
Reynold's number

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Hydraulics and Fluid Mechanics in ME
Air vessels in reciprocating pump are used to

Smoothen flow
Save pump from cavitations
Reduce acceleration to minimum
Increase pump efficiency

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Hydraulics and Fluid Mechanics in ME
Indicator diagram of a reciprocating pump is a graph between

Flow vs. swept volume
Pressure in cylinder vs. swept volume
Pressure vs. speed
Flow vs. speed

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for the fans having constant wheel diameters, the power demand varies

Square of fan speed
Directly as fan speed
Cube of fan speed
Square root of fan speed

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Hydraulics and Fluid Mechanics in ME
Euler's equation in the differential form for the motion of liquids is given by

dp/ρ - g.dz + v.dv = 0
dp/ρ + g.dz + v.dv = 0
ρ.dp - g.dz + v.dv = 0
ρ.dp + g.dz + v.dv = 0

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Hydraulics and Fluid Mechanics in ME
A large Reynold number is indication of

Steady flow
Laminar flow
Smooth and streamline flow
Highly turbulent flow

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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