HYDRAULICS & FLUID MECHANICS QUIZ

According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to

more than the weight of the body

weight of the fluid displaced by the body

the weight of the body

less than the weight of the body

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The horse power transmitted through a pipe is maximum when the ratio of loss of head due to friction and total head supplied is

1/4

1/3

1/2

2/3

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Pressure of the order of 10''' torr can be measured by

Bourdon tube

ionisastion gauge

Pirani Gauge

Micro-manometer

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The flow which neglects changes in a transverse direction is known as

steady flow

uniform flow

turbulent flow

one dimensional flow

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A fluid is said to be ideal, if it is

inviscous

inviscous and incompressible

inviscous and compressible

incompressible

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The peoperty by virtue of which a liquid opposes relative motion between its different layers is called

co-efficient of viscosity

osmosis

surface tension

viscosity

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Choose the wrong statement

when in equilibrium, fluids can sustain shear forces

fluids are capable of flowing

fluids conform to the shape of the con-taining vessels

when in equilibrium, fluids cannot sustain tangential forces

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Operation of McLeod gauge used for low pressure measurement is based on the principle of

Boyle’s law

Pascal’s law

Charle’s law

gas law

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The region between the separation streamline and the boundary surface of the solid body is known as

wake

drag

lift

boundary layer

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The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to

981 PA

1 PA

9810 PA

91 PA

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