Theory of Machines MCQ with Answers

352) In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is Constant, then

Answer is:

crossed belt drive is recommended

353) When the connection between the elements forming a pair is such that the constrained motion is not completed by itself, but by some other means, the motion is said to be a completely constrained motion,

Answer is:

No

Explanation:

When the motion between the elements, forming a pair,is such that the constrained motion is not completed by itself, but by some other means, then the motion is said to be successfully constrained motion.

354) In gears, interference takes place when

Answer is:

the tip of a tooth of a mating gear digs into the portion between base and root circles

355) The ratio of maximum fluctuation of speed to the mean speed is called

Answer is:

coefficient of fluctuation of speed

356) Which of the following statement is correct for involute gears?

Answer is:

352) In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is Constant, then

crossed belt drive is recommended

353) When the connection between the elements forming a pair is such that the constrained motion is not completed by itself, but by some other means, the motion is said to be a completely constrained motion,

No

354) In gears, interference takes place when

the tip of a tooth of a mating gear digs into the portion between base and root circles

355) The ratio of maximum fluctuation of speed to the mean speed is called

coefficient of fluctuation of speed

356) Which of the following statement is correct for involute gears?

The pressure angle is constant throughout the teeth engagement.