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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The major loss of energy in long pipes is due to

gradual contraction or enlargement
sudden enlargement
sudden contraction
friction

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Hydraulics and Fluid Mechanics in ME
Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, in the direction of flow of the liquid, is known as

Drag
Bulk modulus
Lift
Stagnation pressure

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Hydraulics and Fluid Mechanics in ME
If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be

w/h
wh
h
h/w

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Hydraulics and Fluid Mechanics in ME
Which of the following meters is not associated with viscosity

Orsat
Say bolt
Engler
Red wood

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Hydraulics and Fluid Mechanics in ME
A vertically immersed surface is shown in the below figure. The distance of its centre of pressure from the water surface is

(bd²/12) + x̅
d²/12 + x̅
b²/12 + x̅
(d²/12 x̅) + x̅

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Hydraulics and Fluid Mechanics in ME
Which of the following hydraulic unit is used for transmitting increased or decreased torque to the driven shaft?

Hydraulic ram
Hydraulic torque converter
Hydraulic accumulator
Hydraulic intensifier

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