Engineering Materials

This is an MCQ-based quiz on the topic of Engineering Materials.

This includes Introduction to Engineering Materials, Why Material Science & Engineering is important to technologists?, Difference between Metals & Non-Metals, and many more.

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It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called

Internal resistance Tensile stress Transverse stress Compressive stress

In order to avoid tearing off the plate at an edge, the distance from the center of the rivet hole to the nearest edge of the plate (i.e. margin) should be (where d = Diameter of rivet hole in mm)

d 1.5 d 2 d 2.5 d

Young’s modulus of a wire is defined as the stress which will increase the length of wire compared to its original length by

Half Same amount Double One-fourth

The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, l = Original length of the body, A = Cross-sectional area of the body, and E = Young"s modulus for the material of the body)

PlA/E Pl/AE E/PlA AE/Pl

The assumption made in the theory of the reinforced cement concrete beam is that

All the tensile stresses are taken up by the steel reinforcement only There is a sufficient bond between steel and concrete The steel and concrete are stressed within its elastic limit All of the above

The ability of a material to exist in more than one crystal structure is known as ___

Allotropy Polymorphism Polyhedral phase Lattice

What kind of refractory can bauxite be grouped as?

Basic refractory Acid refractory Neutral refractory Silica refractory

Which of the following is a type of Engineering Materials and is a Metal?

Asbestos Ferrous Metals Non-Ferrous Metals Both b & c

Which of the following attributes explain why pure metals are not frequently used in engineering applications?

Softness Hardness Brittleness Luster

Which of the following is an example of a thermoplastic?

Melamine Epoxide Urethane Acetal

Which of the following class of engineering ceramics generally includes lubricant materials?

Metalloids Intermetallics Sulphides Carbides