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Fluid Mechanics

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

Pressure
Density
None of these
Temperature

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Fluid Mechanics
Unsteady uniform flow is represented by flow through a/an

Expanding tube at constant rate
Long pipe at constant rate
Long pipe at decreasing rate
Expanding tube at increasing rate

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Fluid Mechanics
The temperature in isentropic flow

None of these
Does not depend on Mach number
Depends on Mach number only
Cannot drop and then increase again downstream

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Fluid Mechanics
Mass velocity in case of steady flow and through a constant cross-section conduit is independent of the

Neither A nor B
Temperature
Both A & B
Pressure

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Fluid Mechanics
The value of critical Reynolds number for pipe flow is

100000
1300
10000
None of these

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Fluid Mechanics
The energy loss in flow through ven-turimeter is less than that through flow nozzle, because in case of a flow nozzle, the

Length is shorter
Throat diameter is more
Sudden expansion of flow in the downstream occurs
Distance between the throat and the inlet is more

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