ω2 x NO
ω2 x CO
ω2 x CN
ω2 x QN
✅ The correct answer is option C.
Theory of machines MCQs
432. Effort of a governor is the
mean force exerted at the sleeve for a given percentage change of speed
workdone at the sleeve for maximum equilibrium speed
mean force exerted at the sleeve for maximum equilibrium speed
none of the above
✅ The correct answer is option A.
433. The equivalent length of a simple pendulum depends upon the distance between the point of suspension and the centre of gravity.
TRUE
FALSE
✅ The correct answer is option A.
434. The component of the acceleration, parallel to the velocity of the particle, at the given instant is called
radial component
tangential component
coriolis component
none of these
✅ The correct answer is option B.
435. A body in motion will be subjected to coriolis acceleration when that body is
in plane rotation with variable velocity
in plane translation with variable velocity
in plane motion which is a resultant of plane translation and rotation
restrained to rotate w
✅ The correct answer is option D.
436. The contact ratio for gears is
zero
less than one
greater than one
infinity
✅ The correct answer is option C.
437. Pitch point of a cam is
a point on the pitch curve having minimum pressure angle
a point on the pitch curve having maximum pressure angle
any point on the pitch curve
any point on the pitch
✅ The correct answer is option B.
438. In a force-closed pair, the two elements of a pair are not held together mechanically.
Agree
Disagree
✅ The correct answer is option B.
440. In a steam engine, the earlier cut-off with a simple slide valve may be obtained by increasing the steam lap and the angle of advance of the eccentric but keeping constant the travel and lead of the valve, This method will
cause withdrawing or throttling of steam
reduce length of effective stroke of piston
reduce maximum opening of port to steam
all of these
✅ The correct answer is option C.