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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

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

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Hydraulics and Fluid Mechanics in ME
The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as

Path line
Stream line
Potential line
Steak line

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Hydraulics and Fluid Mechanics in ME
According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe)

flv²/2gd
4flv²/2gd
3flv²/2gd
flv²/gd

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Hydraulics and Fluid Mechanics in ME
The weight per unit volume of a liquid at a standard temperature and pressure is called

Specific weight
None of these
Mass density
Specific gravity

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Hydraulics and Fluid Mechanics in ME
A flow in which each liquid particle has a definite path, and the paths of individual particles do not cross each other, is called

Uniform flow
Turbulent flow
Streamline flow
Steady flow

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Hydraulics and Fluid Mechanics in ME
An object having 10 kg mass weighs 9.81 kg on a spring balance. The value of 'g' at this place is

9.75 m/sec²
9.81 m/sec²
10 m/sec²
9 m/sec

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