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Fluid Mechanics

Fluid Mechanics
__________ pump is the most suitable device for discharging a liquid against a pressure of ≥ 1500 kgf/cm².

Piston
Centrifugal
Plunger
Vane

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Fluid Mechanics
Unit of mass velocity is

Kg/m²
Kg/m². hr
Kg/m³. hr
Kg/hr

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Fluid Mechanics
The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke's law range is proportional to the

Inverse of fluid viscosity
Difference in the densities of the particle & fluid
Square of particle size
All of these

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Fluid Mechanics
The most suitable flow measuring device for the fluid flow measurement in a very large diameter pipeline is a

Pitot tube
Weir
V-notch
Kennison nozzle

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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
Discharge
Head

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Fluid Mechanics
Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases.

NPSH required
BHP required by the pump
Head of the liquid pumped
All of these

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