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SET 1: REVISION FOR FE MATERIAL SCIENCE & ENGINEERING

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Which of the following is NOT one of the three main classifications of materials?

a)

Metals

b)

Polymers

c)

Composites

d)

Ceramics

2.

What type of primary atomic bonding involves the sharing of valence electrons between atoms, as seen in a CO2 molecule?

a)

Ionic bonding

b)

Covalent bonding

c)

Metallic bonding

d)

Van der Waals bonding

3.

How many atoms are effectively contained within one unit cell of a Face-Centered Cubic (FCC) crystal structure?

a)

1

b)

2

c)

4

d)

8

4.

Pure iron at room temperature exists in which crystal structure?

a)

Face-Centered Cubic (FCC)

b)

Body-Centered Cubic (BCC)

c)

Simple Cubic (SC)

d)

Hexagonal Close-Packed (HCP)

5.

A material that can undergo substantial plastic deformation before fracture is described as having high:

a)

Brittleness

b)

Hardness

c)

Ductility

d)

Toughness

6.

The time-dependent permanent deformation of a material under a constant load at elevated temperatures is known as:

a)

Fatigue

b)

Creep

c)

Plasticity

d)

Elasticity

7.

Which type of failure occurs under repeated or cyclic stress, often at a stress level below the material's yield strength?

a)

Creep

b)

Impact

c)

Fatigue

d)

Thermal shock

8.

An alloy where the solute atoms are significantly smaller than the solvent atoms and fit into the spaces between them is called a:

a)

Substitutional Solid Solution

b)

Interstitial Solid Solution

c)

Compound

d)

Pearlite

9.

Ferrous alloys are primarily composed of which element?

a)

Aluminum

b)

Copper

c)

Iron

d)

Nickel

10.

Which of the following is an example of a non-ferrous alloy?

a)

Cast Iron

b)

Carbon Steel

c)

Stainless Steel

d)

Brass

11.

The process in Powder Metallurgy where the "green part" is heated below its melting point to bond the powder particles is called:

a)

Mixing

b)

Compaction

c)

Sintering

d)

Extrusion

12.

A uniform attack type of corrosion is characterized by:

a)

Highly localized attack near a joint.

b)

Corrosion occurring over the entire exposed surface at a nearly equal rate.

c)

Attack concentrated at the grain boundaries.

d)

Tiny holes forming on the surface.

13.

The corrosion prevention method that involves applying a more electrochemically active metal (e.g., Zinc) to protect the base metal (e.g., Steel) is:

a)

Coating

b)

Inhibitor

c)

Design

d)

Cathodic Protection

14.

Which non-destructive testing (NDT) method is best suited for detecting surface defects on a component using a colored liquid that seeps into the flaw?

a)

Ultrasonic Testing (UT)

b)

Magnetic Particle Inspection (MPI)

c)

Liquid Penetrant Testing (LPT)

d)

Radiographic Testing (RT)

15.

What is the main objective of conducting a Charpy or Izod impact test?

a)

To measure tensile strength

b)

To measure resistance to failure from a sudden impact force

c)

To determine surface hardness

d)

To analyze the stress-strain curve