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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The ratio of the normal force of jet of water on a plate inclined at an angle of 30° as compared to that when the plate is normal to jet, is

√2
1/√2
1
43832

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Hydraulics and Fluid Mechanics in ME
Low specific speed of a pump implies it is

None of these
Axial flow pump
Mixed flow pump
Centrifugal pump

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Hydraulics and Fluid Mechanics in ME
The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called

Newton's law of viscosity
Newton's law of resistance
Newton's law of cooling
Newton's law of motion

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Hydraulics and Fluid Mechanics in ME
A fluid of kinematic viscosity 0.4 cm²/sec flows through a 8 cm diameter pipe. The maximum velocity for laminar flow will be

less than 1 m/sec
1.5 m/sec
1 m/sec
2 m/sec

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Hydraulics and Fluid Mechanics in ME
Saving of work done and power by fitting an air vessel to single acting reciprocating pump is of the order of

84.8%
39.2%
49.2%
68.8%

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Hydraulics and Fluid Mechanics in ME
The factional resistance of a pipe varies approximately with __________ of the liquid.

Pressure
Cube of velocity
Square of velocity
Velocity

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