Cork Institute of Technology
Bachelor of Engineering in Biomedical Engineering – Stage 1
(NFQ Level 7)
Autumn 2007
Materials Science
(Time: 3 Hours)
Answer any FOUR Questions Examiner: Mr. J. Calvey
All questions carry equal marks Mr. M. Murphy
Prof. P. McHugh
Q1. (a) Explain what is meant by each of the following terms and give examples of each:
♦ Element
♦ Amorphous material
♦ Crystalline structure
(b) Explain the differences between the following types of bonds:
♦ Ionic
♦ Covalent
♦ Metallic (25 marks)
Q2. (a) In relation to the testing of materials what is meant by NDT? List four NDT methods.
(b) What is meant by “hot working” of a material?
(25 marks)
Q3. The Impact test is widely used to evaluate the mechanical behaviour of a material. Describe
how this test is preformed and outline the material properties that can be derived from it.
(25 marks)
