Question # 1

The change in the dimensions of a body produced by the action of the deformation force is known as.

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Strain

Stress

Tensile strain

Tensile stress

a cube with sides 2 cm long is made from a material of density 8 g cm-3 What is the mass of the code

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4 g

16 g

32 g

64 g

If each particle of the fluid passing through a point follows the same path then flow is said to be

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Regular flow

Irregualr flow

Turbulent flow

Streamline flow

Gases have

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Fixed shape

Fixed volume

Fixed shape and volume

No fixed shape and volume

At which temperature surface tension of liquid will be maximum

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0 ^oC

20 ^oC

30 ^oC

100 ^oC

Bernouli's equation includes as a special case of.

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Hook's law

Torricelli's therorem

Third law of motion

Archimedes principle

Bernoulli's equation is Applica table to points

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In a steady flowing liquid

In a streamline

In a straight line perpendicular to steamline

In any non viscous liquid

Crystalline solids are of.

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Short range order

Long range order

Intermediate range

Plastics

A small and a large rain drops are falling thgouth all.

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Large drop falls faster

Both move with same velocity

Small drop falls faster

Small drop does not fall

Fluid mechanics is the study of how fluid move and the other ting involved is

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Energy

Velocity

Forces

Position

The dimensions of strain are.

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[MLT-2]

[ML-1T-2]

[ML-2T-3]

It is a dimensionless quantity

The SI unit of stress is

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kg m s-2

kg m-1 s-2

N m-2

N m-1

The dimensions of viscosity are

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[MLT-1]

[MT-2]

[ML-1T-1]

[ML2T-1]

A rectangular block has length 6 cm, width 5 cm and height 10 cm Its mass is 150 g The density of the block is

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0.2 g cm-3

0.5 g cm-3

2 g cm-3

5 g cm-3

A cube with sides 2 cm long is made from a material of density 8 g cm -3 What is the density of the block is.

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0.2 g cm-3

0.5 g cm-2

2 g cm-3

5 g cm-3

The word amorphous means

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With regular structure

Without structure

May have regular structure

Thermoplastics

If the cross sectional area of the pipe decreases the speed of the fluid increase according to.

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Venturi relation

Bernoulli's equation

Equation of continuity

Torriculli's theroem

Plasma exists in

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Electric bulbs

Tube light

Energy savers

Fluorescent tubes

Blood is

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A compressible fluid

an incompressible fluid

Non viscous fluid

Not a fluid

A uniform vertical wire is stretched by hanging a mass from its lower end Which of the following does ot effect the strain in the wire.

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The stress

The upstretched length

The load applied

the Young's modulus of the metal

Venturimeter is a device used to measure

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Density of a fluid

Speed of a fluid

Pressure of a fluid

Viscosity of a fluid

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