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Fluid Mechanics

Fluid Mechanics
The unit of dynamic viscosity in SI unit is

kg/m . sec
m/N. sec
m² /sec
N/m²

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

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

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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

Efficiency
None of these
Head
Discharge

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Fluid Mechanics
What is the value of Fanning friction factor f ' for smooth pipe at NRe = 10⁶ approximately?

0.1
0.003
0.01
0.3

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Fluid Mechanics
Cp/Cv is termed as

Prandtl number
Weber number
Adiabatic constant
Mach number

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Fluid Mechanics
Velocity of liquid hydrocarbon fuels in a pipeline can not be measured by magnetic flowmeters, because their __________ is very low/small.

Electrical resistivity
Specific gravity
Thermal conductivity
Electrical conductivity

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