Engineering Questions with Answers - Multiple Choice Questions

Materials Science MCQ’s – Non-ferrous Alloys

1 - Question

Which of the metal if present will make the alloy ferrous?
a) Aluminium
b) Lead
c) Zinc
d) Iron
View Answer Answer: d
Explanation: Ferrous metals are metals or alloys which contain iron as an element in it. Therefore Iron is the only ferrous metal among the given options presence of which will make the alloy ferrous.



2 - Question

Which of the following is costliest among the non ferrous materials?
a) Magnesium
b) Aluminum
c) Titanium
d) Copper
View Answer Answer: c
Explanation: Titanium is the costlier than magnesium, aluminum and copper. This is why titanium has limited application even though it has strength to weight ratio and corrosion resistance.



3 - Question

Which of the following is the lightest among the following?
a) Magnesium
b) Aluminum
c) Titanium
d) Copper
View Answer Answer: b
Explanation: Aluminum is the lightest among magnesium, titanium and copper. As it is light, it is used at a variety of places.



4 - Question

Which of the following element when alloyed with magnesium does not reduce the tendency to crack under stress?
a) Aluminum
b) Silicon
c) Zinc
d) Copper
View Answer Answer: d
Explanation: The correct answer is copper. Aluminum, silicon and zinc are alloyed with magnesium to reduce the tendency of magnesium to crack under stress.



5 - Question

Which of the following is an alloy of tin?
a) Brass
b) Bronze
c) Pewter
d) Steel
View Answer Answer: c
Explanation: Pewter is an alloy of 85 % – 99 % of tin with alloying elements like copper and lead traces.



6 - Question

Which of the metal is alloyed with silver to make sterling silver?
a) ZInc
b) Copper
c) Magnesium
d) Aluminum
View Answer Answer: b
Explanation: Sterling silver is an alloy of silver to reduce its cost. It is an alloy with 90% of silver and 10% copper.



7 - Question

Tin has low viscosity.
a) True
b) False
View Answer Answer: a
Explanation: The above statement is true. Tin has low viscosity and therefore is a good material for casting application.



8 - Question

Which of the following metal highly prone to corrosion?
a) Aluminum
b) Copper
c) Iron
d) Zinc
View Answer Answer: d
Explanation: Zinc is an element that is highly prone to corrosion. Therefore, it is used as a sacrificial anode or in galvanization.



9 - Question

Monel is an alloy of nickel.
a) True
b) False
View Answer Answer: a
Explanation: The above statement is true. Monel is an alloy in which major element is nickel in which copper is added. Magnesium and iron can be added with a limit of 2% and 2.5 % respectively.

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