Question # 1

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

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

The force applied on unit area of a body to produce any change in shape volume or length is known as.

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Strain

Stress

Tensile strain

Tensile stress

Rate of flow of a liquid is expressed in

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Litre m-3

Litre s-1

Litre m-1

Litre s

When the deforming force applied on a body produces change in shape, thenit is said t be

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Tensile stress

Compression stress

Shear stress

Shear modulus

Density of blood a

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Equal to water

Greater than water

Less than water

zero

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

A fundamental equation in fluid dynamics that relates pressure to fluid speed and height is.

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Equation of continuity

Bernoulli's equation

Stoke's equation

Mass energy eqation.

A spring obeying Hooke's law has an upstretched length 50 mm and a spring constant of 400 N m-1 What is the tension in the spriing when its overall length is 70 mm.

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8 N

28 N

160 N

400 N

Which of the substances is the lightest one.

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Copper

Mercury

Aluminium

Lead

At high altitudes, the blood flows out of nose and ear because.

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Blood pressure increase at high altitudes

Percentage of oxygen in the air increase

Atmospheric pressure decreases there

Density of blood decreases of high altitudes

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

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Energy

Velocity

Forces

Position

If you float in water with just your nose out the average density of your body must be

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Same as that of water

Greater than that of water

Less than that of water

Zero

The nib of fountain pan is split of convey ink down the nib by the phenomenon of.

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Adhesion

Cohesion

Osmosis

Capillary

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

Plasma exists in

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Electric bulbs

Tube light

Energy savers

Fluorescent tubes

The strength per unit volume of a solid is called.

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shear stress

Shear strain

Bulk strength

Bulk modulus

When the deforming force applied on a body produces change in length then it is said to be

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Tensile stress

compression stress

Shear stress

Shear modulus

Artificial polymers are made by a chemicals reaction known as.

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Crystallization

Electroplating

Polymerization

Polarization

The force that moves a rocket or a plane forward is called.

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Lift

drag

Thrust

Turbulence

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

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