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Nigerian Society of Engineers Questions Bank For Materials and Metallurgical Engineering

Nigerian Society of Engineers Questions Bank For Materials and Metallurgical Engineering

The Nigerian Society of Engineers (NSE) is a professional body of practising engineers in Nigeria. The enrolment test into the body is conducted twice a year (April and September).

Graduates of engineering disciplines with B.Eng are eligible to enrol for this test if they have stayed for a minimum of four years after graduation. The enrolment process involves a lot of stages including oral presentations, technical exhibition and an aptitude test.

This book is a comprehensive collection of practice questions and answers for materials and metallurgical engineering.

You may wish to have a look at the NSE General Engineering Questions and Answers

View related materials in our Professional Exams Past Questions and Answers Section

NSE met/mat questions bank are pulled from:

  • Extractive Metallurgy
  • Iron & Steel Making
  • Manufacturing Process
  • Material Science
  • Mechanical Metallurgy
  • Physical Metallurgy
  • Thermodynamics
  • Welding Technology
Practice additional related test packs in our CBT Centre under Real Exam Settings!
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Nigerian Society of Engineers Questions Bank For Materials and Metallurgical Engineering

Sample Question 1

1. The minimum number of ions in the unit cell of an ionic crystal with FCC space lattice is
a) 4
b) 8
c) 12
d) 16
2. If the radius of an atom in a simple cubic crystal is r, the body diagonal of the unit cell is
a) r√3
b) 2r√3
c) 4r/√3
d) 3r/4
3. A dislocation in a metal represents
a) Weakness of the metal
b) Point defect in the metal
c) Volume defect in the metal
d) Line defect in the metal

Sample Question 2

4. The most influencing factor of diffusivity
a) Diffusing species
b) Temperature
c) Lattice structure
d) Presence of defects
5. The following phenomena are useful in zone-refining process
a) Coring
b) Segregation
c) Both
d) None
6. A martensitic transformation
a) consists of two stages, namely a nucleation stage and a growth stage
b) is extremely rapid
c) can only lead to a change in the crystal structure of the phases
d) can lead to a change in composition of the phases
e) does not involve diffusion

Sample Question 3

7. The recrystallisation rate increases with
a) increasing amount of cold work
b) higher working temperature
c) higher annealing temperature
d) decreasing initial grain size
8. In a single component system, the maximum number of phases that can coexist in equilibrium is
a) 2
b) 3
c) 4
d) 5
9. The phase boundary between alpha and (alpha + beta) regions is called
a) liquidus
b) solidus
c) solvus
d) none of these
 

Sample Question 4

10. Slow plastic deformation of metal under a constant stress is known as
a) Creep
b) fatigue
c) endurance
d) non plastic deformation
11. The following types of materials are usually the most ductile
a) face centered cubic lattice
b) body centered cubic lattice
c) hexagonal close packed lattice
12. Overageing refers to
a) ageing above room temperature
b) ultra fine precipitate size
c) long ageing
d) coarsening of precipitate particles

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