Theory of Machines

A-3

MULTIPLE CHOICE QUESTIONS WITH EXPLANATORY NOTES

1. Scotch yoke mechanism is used to generate

1. sine functions
2. square roots
3. logarithms
4. inversions.

2. The danger of breakage and vibration is maximum

1. below critical speed
2. near critical speed
3. above critical speed
4. none of the above.

3. In full depth 14 degree involute system, the smallest number of teeth in a pinion which meshes with rack with out interference is

1. 12
2. 16
3. 25
4. 32.

4. Inversion of a mechanism is

1. changing of a higher pair to lower pair
2. obtained by fixing different links in a kinematic chain
3. turning it upside down
4. obtained by reversing the input and output motion.

5. The sense of ...