Question # 1

Zirconia is classified as:

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Ceramic solid

Ionic compound

Metal

Either (A) or (B)

Either (B) or (C)

The ratio of linear stress/linear strain is called as

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Yong's modulus

Bulk modulus

Shear modulus

Modulus

Which of the following can become a good temporarily magnet

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iron

steel

both of them

none of them

The transition from solid state to liquid state is:

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Abrupt

Slow

Continous

Discontinous

Both (A) and (D)

Glass and high carbon steel are the examples of

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brittle substances

ductile substances

plastic substances

elastic substances

The critical temperature of tin is

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1.18 K

4.2 K

3.72 K

7.2 K

The materials in which there are plenty of free electrons for electrical conduction are known as

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conductors

insulators

semi-conductors

all of them

Each atom in metal crystal:

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Remains fixed

Vibrates about a fixed point

Moves randomly

Rotates about center of a crystal

None of these

When a stress changes the shape, it is called the

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compressional stress

tensile stress

shear stress

any one of them

The pattern of NaCl particles have a shape which is :

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Cubic

Body centred cubic

Simple cubic

face centred

Both (A) and (C)

Each atom in a metal crystal vibrates about a fixed point with an amplitude that:

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Decrease the rise in temprature

Is not affected by rise in temprature

Increase with rise in temprature

Both (B) and (C)

None of these

When a stress changes length, it is called the

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compressional stress

tensile stress

shear stress

any one of them

Semi-conductor elements have atoms with

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2 valence electrons

3 valence electrons

4 valence electrons

5 valence electrons

The conduction band in a solid

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may be empty

cannot be empty

should be filed

all of them

The electrons in the outermost shell of an atom are called

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core electrons

valence electrons

high energy electrons

none of them

Synthetic materials fall into the category of

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crystalline solids

amorphous

polymeric solids

all of them

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Physics ECAT Pre Engineering Chapter 17 Physics of Solid Online Test MCQs With Answers

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