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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is

0.3
0.83
0.4
0.6

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

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

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Hydraulics and Fluid Mechanics in ME
The Reynold's number of a ship is __________ to its velocity and length.

Square root of velocity
Directly proportional
None of these
Inversely proportional

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Hydraulics and Fluid Mechanics in ME
In order to measure the flow with a Venturimeter, it is installed in

Horizontal line
Any direction and in any location
Inclined line with flow downwards
Inclined line with flow upwards

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Hydraulics and Fluid Mechanics in ME
The working of which of the following hydraulic units is based on Pascal's law?

Hydraulic press
Air lift pump
Hydraulic coupling
Jet pump

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Hydraulics and Fluid Mechanics in ME
Kinematic similarity is said to exist between the model and the prototype, if both of them

Are equal in size and shape
Have identical velocities
Are identical in shape, but differ only in size
Have identical forces

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