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‏8ر‎ .۷۷۹۰+ [٦ நந்து 800
SECOND SEMESTER B.TECH. DEGREE EXAMINATION, MAY/JUNE 2016
BE 100 : ENGINEERING MECHANICS
Max. Marks : 100 ‘Duration : 3 Hours
PART-A
Answer all the questions. Each question carries 5 Marks. (8x5=40 Marks)

1. Explain the principle of transmissibility with an example.

2. Three smooth identical spheres A, B and C are placed in a rectangular channel
as shown in Fig. 1. Draw the free body diagram of each sphere. ١

Fig. 1

3. State and prove Parallel axis theorem.

4. Define angle of friction and angle of repose. Prove that angle of repose is equal
to angle of friction.

5. A lift carries a weight of 3600 N and is moving with a uniform acceleration of
3.5 77/92. Determine the tension in the supporting cable when the lift is moving
upward. (ध = 9.8m/s?).

6. What do you mean by instantaneous centre of rotation? How can it be located
for a body moving with combined motion of rotation and translation ?

P.T.O.