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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
According to fan laws, for fans having constant wheel diameter, the air or gas capacity varies

Square of fan speed
Square root of fan speed
Cube of fan speed
Directly as fan speed

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Hydraulics and Fluid Mechanics in ME
The Bernoulli's equation is based on the assumption that

The velocity of flow is uniform across any cross-section of the pipe
There is no loss of energy of the liquid flowing
All of these
No force except gravity acts on the fluid

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Hydraulics and Fluid Mechanics in ME
Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between

Lift and tangential force
Lift and drag
Drag and resultant force
Lift and resultant force

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Hydraulics and Fluid Mechanics in ME
A hydraulic intensifier normally consists of

A cylinder, a piston, storage tank and control valve
A cylinder and a ram
Two coaxial rams and two cylinders
Two cylinders, two rams and a storage device

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Hydraulics and Fluid Mechanics in ME
The pitot tube is used to measure

dynamic pressure
stagnation pressure
static pressure
velocity at stagnation point

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Hydraulics and Fluid Mechanics in ME
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.

H/2
3H/4
2H/3
H/3

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