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Engineering Materials Metallurgy
Engineering Materials Metallurgy Multiple Choice
Quiz 1
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Q.1
Which of the following is not a natural abrasive?
a) Emery
b) Quartz
c) Silicon carbide
d) Sandstone
Q.2
What is a common application of diamond?
a) Drilling of rocks
b) Sandpaper
c) Wood finishing
d) Polishing of metals
Q.3
Sandpaper is a common application of ______ abrasives.
a) Garnet and flint
b) Rottenstone and pumica
c) Walnut shells
d) Silicon carbide
Q.4
Silicic acid deposits are used to form _____
a) Quartz
b) Emery
c) Tripoli
d) Diamond
Q.5
A high-temperature electric arc of _____ is used for the manufacture of silicon carbide.
a) 1500oF
b) 3000oF
c) 4500oF
d) 7500oF
Q.6
Which abrasive has a common trade name as carborundum?
a) Aluminum oxide
b) Silicon carbide
c) Tungsten carbide
d) Boron carbide
Q.7
Which of the following is regarded as a modern abrasive?
a) Tripoli
b) Silicon carbide
c) Pumica
d) Boron carbide
Q.8
The polishing of cast iron and finishing of stainless steels are applications of ______
a) Silicon carbide
b) Boron carbide
c) Tungsten carbide
d) Aluminum oxide
Q.9
Which silicate structure does the following diagram represent?
a) Tetrahedron
b) Poly-tetrahedral
c) Chain
d) Sheet
Q.10
What is the composition of a double tetrahedral structure?
a) SiO4
b) Si2O7
c) Si3O9
d) Si5O9
Q.11
Conversion of a tetrahedral unit into a three-dimensional structure gives a ______ structure.
a) Vitreous
b) Sheet
c) Chain
d) Framework
Q.12
Quartz and Feldspar are examples having ______ structure
a) Tetrahedron
b) Sheet
c) Poly tetrahedral
d) Framework
Q.13
Which silicate structure does the following figure represent?
a) Chain
b) Sheet
c) Vitreous
d) Tetrahedron
Q.14
The ability of a material to exist in more than one crystal structure is known as _______
a) Polymorphism
b) Allotropy
c) Polyhedral phase
d) Lattice
0 h : 0 m : 1 s
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