INSTRUCTIONS: ANSWER ALL QUESTIONS IN SECTION A AND ONE QUESTION IN SECTION B. ILLUSTRATE YOUR ANSWER WITH WELL-LABELLED DIAGRAMS WHERE APPROPRIATE. TIME ALLOWED: TWO (2) HOURS
INSTRUCTIONS: ANSWER ALL QUESTIONS IN SECTION A AND ONE (I) QUESTION FROM SECTION B. ILLUSTRATE YOUR ANSWERS WITH WELL LABELED DIAGRAMS WHERE APPROPRIATE. TIME ALLOWED: ONE AND HALF (I 1/2) HOURS