Free Printable QUIZ CHEMISTRY OF ENGINEERING MATERIALS

1.

Strontium has an FCC crystal structure, an atomic radius of 0.215 nm, and an atomic weight of 87.62 g/mol. Calculate the theoretical density of Sr

a)

5.28 g/cm³.

b)

2.58 g/cm³.

c)

8.28 g/cm³.

d)

0.528 g/cm³.

2.

What are the three classification of materials?

a)

Metals, Ceramics and Polymers

b)

Plastic, Rubber and Glass

c)

Carbon, glass and foam

d)

None of the above

3.

What material group has the highest density?

a)

Polymer

b)

Composites

c)

Metals

d)

Ceramics

4.

What are the four advanced materials?

a)

Processing, Structure, Properties and Perfomance

b)

Hydrogen, Oxygen, Carbon and Nitrogen

c)

Semiconductors, Biomaterials, Smart materials and Nanomaterials

d)

Metals, Ceramics, Polymers and Composites

5.

Give number of atom/s in simple cubic (SC).

a)

0

b)

1

c)

2

d)

4

6.

Give number of atom/s in BCC.

a)

0

b)

1

c)

2

d)

4

7.

State coordination number (CN) for FCC.

a)

4

b)

6

c)

8

d)

12

8.

State coordination number (CN) for BCC.

a)

4

b)

6

c)

8

d)

12

9.

Give number of atom/s in FCC.

a)

2

b)

4

c)

6

d)

8

10.

Give number of atom/s in HCP.

a)

2

b)

4

c)

6

d)

8

11.

Atomic packing factor (APF) for SC.

a)

74%

b)

0.74

c)

0.68

d)

0.52

12.

Atomic packing factor (APF) for BCC.

a)

74%

b)

68%

c)

0.68

d)

0.52

13.

Atomic packing factor is

a)

Distance between two adjacent atoms

b)

Projected area fraction of atoms on a plane

c)

Volume fraction of atoms in cell

d)

None

14.

The volume of a BCC cell is 5.7 x 10^-29 m³. Determine the atomic radius in nanometers.

a)

0.167 nm

b)

0.176 nm

c)

1.67 nm

d)

1.76 nm

15.

Which of the following is an example of a composite material?

a)

fiber glass

b)

rubber tubing

c)

plastic cup

d)

wooden spoon

16.

Silicon in computer chips is an example of what kind of solid material?

a)

biomaterial

b)

composite

c)

ceramics

d)

semiconductor

17.

The melting point of materials is ________________ the bonding energy of an object.

a)

directly proportional to

b)

numerically equal with

c)

indirectly proportional to

d)

greater than

18.

Structure wherein atoms are located at each corners and centers of all cube face.

a)

BCC

b)

HCP

c)

FCC

d)

SCS

19.

Which among the four components of the discipline of material science and engineering is exhibited by transparent disk A, translucent disk B, and opaque C?

a)

processing

b)

properties

c)

structure

d)

performance

20.

A specimen subject to forces will experience deformation is categorized as

a)

chemical property

b)

electrical property

c)

deteriorative property

d)

mechanical property

21.

It is a fraction of a unit cell tat is occupied by hard sphere atoms?

a)

atomic packing factor

b)

volume of unit cell

c)

percent ionic character

d)

volume of atoms in the unit cell

22.

Metallic structure that has a cubic unit cell with atoms located at all eight corners and a single atom at the cube center.

a)

BCC

b)

FCC

c)

SCC

d)

HCP

23.

The volume of a BCC cell is 5.7 x 10^-29 m³. Determine the atomic radius in nanometers.

a)

0.167 nm

b)

2. 768 nm

c)

1.678 nm

d)

3.876 nm

24.

Estimate the density of iron that has BCC structure with an atomic radius of 0.124 nm, and an atomic weight of 55.58 g/mol.

a)

3.8 g/cm³

b)

6.4 g/cm³

c)

5.7 g/cm³

d)

7.9 g/cm³

25.

Magnesium oxide has a rock salt crystal structure (FCC) and a density of 3.58 g/cm³. Determine its cell edge (a) length.

a)

2.4 x 10^-8 cm³

b)

4.2 x 10^-8 cm³

c)

3.5 x 10^-8 cm³

d)

5.3 x 10^-8 cm³

26.

It arises from the sharing of electrons between two non-metals.

a)

covalent bonding

b)

metallic bonding

c)

ionic bonding

d)

secondary bonding

27.

Bonding between metals and its alloy.

a)

covalent bonding

b)

metallic bonding

c)

ionic bonding

d)

secondary bonding

28.

Inorganic materials that consist of metallic and non-metallic elements chemically bonded together. This is the definition for X material. What is X?

a)

Metal

b)

Polymer

c)

Ceramics

d)

Biomaterial

29.

Two or more materials integrated to form a new material. This is the definition for ...

a)

Composite materials

b)

Ceramis

c)

Metal

d)

Semiconductor

30.

Synthetic biomaterials can be classified into 4 categories. Polymer, ceramics, X and semiconductor. What is X?

a)

Metal

b)

Silk

c)

Composite

d)

Collagen

31.

Cup that can change colour when reach a certain temperature is made of .....

a)

Smart material

b)

Metal

c)

Ceramics

d)

Composite material

32.

Estimate the density of iron that has BCC structure with an atomic radius of .124 nm, and an atomic weight of 55.58 g/mol.

a)

3.8 g/cm³

b)

6.4 g/cm³

c)

5.7 g/cm³

d)

7.9 g/cm³

33.

Listed below are types of alloys EXCEPT

a)

Brass

b)

Tin Bronze

c)

Tungsten

d)

Cupro-nickel

34.

There are 5 classification of material science. Metal,.............,ceramics, composites, advanced material.

a)

A. Biomaterial

b)

B. Polymer

c)

C. Smart material

d)

D. Semiconductor

35.

These are the reasons why you need to study material science and engineering EXCEPT

a)

able to select the best material for certain application

b)

able to create a new material

c)

able to predict the properties of new found material

d)

able to select the most expensive material for certain application

36.

A good electrical and heat conductor, strong and ductile. This statement refers to :

a)

metal

b)

polymer

c)

ceramic

d)

glass

37.

Semiconductor is a material that

a)

change color when temperature is changes

b)

respond to magnetic field

c)

conducts and insulates electrical current

d)

conducts and insulates heat

38.

Calculate the radius of a Palladium atom, given that Pd has an FCC crystal structure, a density of 12.0 g/cm3

a)

0.173 nm

b)

0.713 nm

c)

0.317 nm⁵

d)

0.137 nm

39.

The picture shows a product that uses the .............................material

a)

semiconductor

b)

polymer

c)

composites

d)

biomaterials

40.

These materials must not produce toxic substances and must be compatible with body tissues. Choose the right answer for this materials.

a)

Metal

b)

Composites

c)

Biomaterials

d)

Semiconductor

41.

Complete the following charts

a)

Biomaterials, Nanoengineered materials

b)

Ceramics, Nanoengineered materials

c)

Biomaterials, Ceramics

d)

Ceramics, Biomaterials

42.

Material "B" are utilized in high-technology applications and high performance materials. What is materials "B"

a)

Cast Iron

b)

Nonmetal

c)

Stainless Steel

d)

Advanced materials

43.

The four components of the discipline of materials science and engineering are

a)

Processing --> Structure --> Properties --> Performance

b)

Structure --> Processing --> Properties --> Performance

c)

Structure --> Processing --> Performance --> Properties

d)

Structure --> Properties --> Performance --> Processing

44.

The relationship between the atomic radius (r) and edge length (a) of a simple, fcc, bcc cubic unit cell will be respectively

a)

$\frac{a}{2}$ $\frac{\sqrt{2}a}{4}$ $\frac{\sqrt{3}a}{4}$

b)

$\frac{a}{2}$ $\frac{\sqrt{3}a}{4}$ $\frac{\sqrt{2}a}{4}$

c)

$\frac{\sqrt{2}a}{4}$ $\frac{\sqrt{3}a}{4}$ $\frac{a}{2}$

d)

$\frac{\sqrt{3}a}{4}$ $\frac{a}{2}$ $\frac{\sqrt{3}a}{4}$

45.

Why are alloys generally used to make everyday objects?

a)

Alloys are often stronger and less active than pure metals.

b)

Alloys have different melting point than pure metals.

c)

Alloys are less expensive to produce than pure metals.

d)

Alloys have ionic bonds instead of metallic bonds.

46.

The relationship between the atomic radius (r) and edge length (a) of a simple, fcc, bcc cubic unit cell will be respectively

a)

$\frac{a}{2}$ $\frac{\sqrt{2}a}{4}$ $\frac{\sqrt{3}a}{4}$

b)

$\frac{a}{2}$ $\frac{\sqrt{3}a}{4}$ $\frac{\sqrt{2}a}{4}$

c)

$\frac{\sqrt{2}a}{4}$ $\frac{\sqrt{3}a}{4}$ $\frac{a}{2}$

d)

$\frac{\sqrt{3}a}{4}$ $\frac{a}{2}$ $\frac{\sqrt{3}a}{4}$

47.

The atomic diameter of an BCC crystal (if a is lattice parameter) is

a)

a

b)

a/2

c)

a/(4/√3)

d)

a/(4/√2)

48.

Molybdenum (Mo) has a BCC crystal structure, an atomic radius of 0.1363 nm. Compute its theoretical volume.

a)

3.1187x10^-23 cm³

b)

1.5594x10^-23 cm³

c)

3.1187x10^-23 m³

d)

1.5594x10^-23 m³

49.

Obtain the volume of the BCC crystal structure in term of it the atomic radius.

a)

2R³

b)

16R³√2

c)

(4R/√3)³

d)

(4R)³

50.

A sample containing aluminum weighs 27.0 g and has a volume of 10.0 cm 3 . The atomic radius of metallic aluminum has been determined by x-ray diffraction to be 0.143 nm. There are 6.02 x 10 ²³total atoms in the piece of metal. What is the volume occupied by aluminum in cm³?

a)

1.22 x 10^-23

b)

7.37

c)

2.63

d)

73.7

QUIZ CHEMISTRY OF ENGINEERING MATERIALS

Total questions: 50

Worksheet time: 33mins

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