FEBRUARY 2017 Sub. Code :2404
B.Sc. PROSTHETICS AND ORTHOTICS
FIRST YEAR
PAPER IV APPLIED MECHANICS AND STRENGTH OF MATERIALS
Q.P. Code: 802404
Time: Three hours Maximum 100 Marks
Answer All questions
I. Elaborate on: x 10 30)
1. A Steel bar ABCD 4m long is subjected to forces as shown in the fig. Find the
elongation of the bar. Take E for the steel as 200 Gpa.
2. Find the centre of gravity of a channel section 100mm x 50mm is 15mm thick.
3. Discuss about the control system and its application in Prosthetics Orthotics.
II. Write notes on: x 5 40)
1. What is Mechanics, Statics, Dynamics, Kinematics and Kinetics?
2. State parallelogram and triangle law of forces.
3. Write the different types of stresses with diagram.
4. Define the term 'Factor of safety' and state its significance.
5. Discuss about the different types of loads.
6. State Theorem of Parallel Axis.
7. Difference between Open and Closed Helical Springs with diagrams.
8. Define Ergonomics with relevant example.
III. Short answers on: (10 x 3 30)
1. What is Scalar Vector Quantity?
2. What is Derived Units?
3. What is meant by resultant of force?
4. Define Stress Strain.
5. Define Poisson's Ratio.
6. What is Cantilever beam?
7. What is Centre of Gravity?
8. What is Moment of Inertia?
9. What is Stiffness of the spring?
10. What is meant by Torque?