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Fluid Mechanics

Fluid Mechanics
The equivalent diameter for flow through a rectangular duct of width B and height H is

2HB/(H + B)
4HB/(H + B)
HB/(H + B)
HB/2(H + B)

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Fluid Mechanics
The capacity of an accumulator is the maximum

Discharge which it can deliver
Energy which it can store
Liquid which it can store
None of these

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Fluid Mechanics
If the head over the triangular notch is doubled, the discharge will increase by __________ times.

2
5.657
4
2.828

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Fluid Mechanics
Unit of mass velocity is

Kg/hr
Kg/m³. hr
Kg/m²
Kg/m². hr

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Fluid Mechanics
A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double

Head
None of these
Discharge
Efficiency

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Fluid Mechanics
The speed of sound in an ideal gas varies as the

Pressure
Density
None of these
Temperature

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