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Fluid Mechanics

Fluid Mechanics
Liquid delivery by centrifugal pump starts, only when the head developed by it is equal to the __________ head.

Static
Friction
Total
Manometric

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Fluid Mechanics
Cd is always __________ Cc.

Equal to
Less than
Either more or less than
Greater than

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Fluid Mechanics
For laminar flow of a shear thinning liquid in a pipe, if the volumetric flow rate is doubled, the pressure gradient will increase by a factor of

>2
43832
2

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Fluid Mechanics
The inherent characteristic of an equal percentage valve relating flow rate 'q' with valve stem movement 'x' are described by the equation

dq/dx = K.q
dq/dx = K
dq/dx = Kq²
dq/dx = K/q

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Fluid Mechanics
Water flow rate in a pipe of 3.5 metres diameter can be most economically and conveniently measured by a/an

Venturimeter
Orificemeter
Rotameter
Pitot tube

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

Centrifugal
Plunger
Vane
Piston

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