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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The maximum efficiency of jet propulsion of a ship with inlet orifices at right angles to the direction of motion of ship, is

0.8
0.4
0.6
0.5

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Hydraulics and Fluid Mechanics in ME
A structure, whose width is __________ the width of the channel, is called a flumed structure.

Less than
None of these
Equal
More than

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Hydraulics and Fluid Mechanics in ME
The specific weight of water in S.I. units is taken as

Any one of these
9.81 × 103 N/m3
9.81 × 10-6 N/mm3
9.81 kN/m3

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

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

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

0.392
0.688
0.492
0.848

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Hydraulics and Fluid Mechanics in ME
The unit of surface tension is

N/m3
N-m
N/m
N/m2

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