361. A body will begin to move down an inclined plane, if the angle of inclination of the plane is __________ the angle of friction.
equal to
less than
greater than
✅ The correct answer is option C.
Theory of machines MCQs
362. The ratio of the driving tensions for V-belts is __________ times that of flat belts. (where β = Semi-angle of the groove)
sin β
cos β
cosec β
sec β
✅ The correct answer is option C.
363. Scotch yoke mechanism is used to generate
sine functions
square roots
logarithms
inversions
✅ The correct answer is option A.
364. When the pitching of a ship is __________ the effect of gyroscopic couple acting on it will be to move the ship towards port side.
upward
downward
✅ The correct answer is option B.
365. The wear of bearing is proportional to velocity and pressure.
Yes
No
✅ The correct answer is option A.
366. In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is Constant, then
open belt drive is recommended
crossed belt drive is recommended
both open belt drive and crossed belt drive is recommended
the drive is recommend
✅ The correct answer is option B.
367. If the pressure angle is __________ , a reciprocating follower will jam in its bearings.
too small
too large
✅ The correct answer is option B.
368. The minimum number of teeth on the pinion which will mesh with any gear without interference for 20° full depth involute teeth will be
12
14
18
24
✅ The correct answer is option C.
369. The pitching of a ship is assumed to take place with simple harmonic motion.
Yes
No
✅ The correct answer is option A.
370. The maximum fluctuation of energy is the
difference between the maximum and minimum energies
sum of the maximum and minimum energies
variations of energy above and below the mean resisting torque line
ratio of the mean resi
✅ The correct answer is option A.