Engineering Materials MCQ Question with Answer

Engineering Materials MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 1
Annealing of white cast iron results in production of

Malleable iron
Nodular iron
Spheroidal iron
Grey iron

Question No : 2
Stress relaxation is the phenomenon

In which parts are not loaded
In which stress remains constant on increasing load
In which deformation tends to loosen the joint and produces a stress reduced
Stress reduces on increasing load

Question No : 3
The elastic stress strain behaviour of rubber is

No fixed relationship

Question No : 4
The aluminium alloy, mainly used, for anodized utensil manufacture, is


Question No : 5
Thermoplastic materials are those materials which

Are formed into shape under heat and pressure and results in a permanently hard product
Do not become hard with the application of heat and pressure and no chemical change occurs
Are flexible and can withstand considerable wear under suitable conditions
Are used as a friction lining for clutches and brakes

Question No : 6
The coke in the charge of blast furnace

Controls the grade of pig iron
Acts as an iron bearing mineral
Supplies heat to reduce ore and melt the iron
Forms a slag by combining with impurities

Question No : 7
An alloy steel which is work hardenable and which is used to make the blades of bulldozers, bucket wheel excavators and other earth moving equipment contain iron, carbon and