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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water

50 cm
51 cm
52.2 cm
52 cm

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Hydraulics and Fluid Mechanics in ME
Air vessels in reciprocating pump are used to

Reduce acceleration to minimum
Increase pump efficiency
Smoothen flow
Save pump from cavitations

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Hydraulics and Fluid Mechanics in ME
Differential manometer is used to measure

Difference of pressure between two points
Pressure in pipes, channels etc.
Very low pressure
Atmospheric pressure

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Hydraulics and Fluid Mechanics in ME
The unit of viscosity is

kg-sec/meter
Newton-sec per meter²
Newton-sec per meter
Meters² per sec

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Hydraulics and Fluid Mechanics in ME
If no resistance is encountered by displacement, such a substance is known as

Gas
Water
Ideal fluid
Fluid

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

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

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