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Information about the semester i examinations for the m.sc. In biomedical science program, held in the academic year 2007/2008. Exam codes, modules, instructions, requirements, and questions covering various topics such as materials science, solid mechanics and fluid mechanics, and electrochemistry. Students are required to answer multiple-choice questions and provide diagrams where appropriate.
Typology: Exams
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Exam Code(s) 1MV Exam(s) M.Sc. in Biomedical Science
Module Code(s) BES Module(s)
Paper No. 1 Repeat Paper
External Examiner(s) Internal Examiner(s) Dr. Yuri Rochev, Patrick Fournet
Answer questions from each Section (Section A: 2 questions, Section B: 2 questions and Section C: 1 question). Use a separate answer book for each Section.
Duration (^) 2 hours
No. of Pages 8 (including cover) Department(s) National Centre for Biomedical Engineering Science Course Co-ordinator(s) Dr. Yuri Rochev
Requirements : MCQ Handout 1 Statistical/ Log Tables Cambridge Tables Graph Paper Log Graph Paper Other Materials
Answer all Questions
Note: Use diagrams where appropriate
Question 1. [20 marks]
Give a description of the following chemicals (e.g. inter- and intramolecular bonds) and reasons why these particular elements bond to each other (see Periodic Table for elements’ atomic structure).
Part A. KCl
Part B. C 2 H 4
Part C. H 2 O
Part D. Cgraphite
Question 2. [20 marks]
Part A. Explain the concept of grain formation and its implication on materials properties
Part B. Give an example of a ceramic material and its properties
Part C. Give an example of a polymer and its properties
Part D. Explain the significant difference of nanomaterials in terms of their electronic energy levels
Part B
An experimental flow loop is used to test the flow structure downstream of a fully opened mechanical heart valve, see attached figure. A pump drives the test fluid through the heart valve. The pump must maintain a steady flow rate of 2 l/min throughout the experiment. A smooth tube with a constant internal diameter of 15 mm connects the pump to the heart valve. A pump must be selected for the experiment that will maintain the pressure just up stream of the heart valve ( P 2 ) at 102,000 Pa. Calculate the pressure at the pump outlet ( P 1 ) so that the correct flowrate is maintained throughout the experiment.
Useful values:
Pump
Heart valve test region
Location 1
1.5 m
Heart valve
z 2 = 1.5 m
Location 2
z 1 = 0 m
Vertical direction
P 2
Modified Bernoulli Equation:
2 2
2 1
2 1
1