Question # 1

Liquids with disordered structure frozen in are an example of

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Amorphous solids

Glassy solids

Crystalline solids

Polymeric molecules

Which of the following has maximum viscosity.

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Oxygen

Mercury

Water

Glycerine

The pulsating outflow of blood from the heart by alternate systole and diastole is smoothed out by

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The blocking action of the heart's valves

The viscosity of the blood

The effect of gravity

the elasticity of the blood vessels

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

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 breaker is full of water with an ice piece floating The ice place has a lead piece in it When ice cube mells then.

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Water overflows

Level falls

Level remains unchanged

Density increases

The Pressure will be low where the speed of the fluid is

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Zero

High

Low

Constant

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

Which type of solid have definite melting point.

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Crystalline solids

Amorphous solids

Glassy solids

Polycrystalline solids

The ratio of stress to strain is called.

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Bulk modulus

Young's modulus

Modulus of elasticity

Shear modulus

The SI unit of modulus of elasticity us

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N m-2

N m-1

N m

N m -3

If a body retains completely its altered shape and size, it is said to be

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Perfecto elasticity

Perfect plasticity

Elasticity

elastic limit

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 a fluid does not wet a liquid surface, the angle of contact is.

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90^o

less than 90 ^o

* greater than 180 ^o

between 90^o and 180 ^o

How much would be the volume of ice formed by freezing 1 litre of water.

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1.0 litre

1.09 litre

1.90 litre

2.0 litre

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

If a liquid does not wet a solid surface, the angle of contact is.

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Less than 90^o

Greeter than 180 ^o

90 ^o

Between 90 ^o and 180^o

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

The product of cross sectional area of the pipe and the fluid velocity at any point along the pipe is equal to.

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Zero

Flow rate

A constant

A varibale

Any alternations product in shape length of volume where a body is subjected to some external force is called

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Deformation

Polymerization

Crystallization

Elasticity

Viscosity in fluid refers to

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The density of a fluid

the compressibility of a fluid

Tangential force exerted on solid surface by the flowing fluid

Normal forces exerted on solid surace by the following fluid

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