Theory Of Machine - Study Mode
[#106] The retardation of a flat faced follower when it has contact at the apex of the nose of a circular arc cam, is given by (where OQ = Distance between the centre of circular flank and centre of nose)
Correct Answer
(A) $${omega ^2} imes { ext{OQ}}$$
[#107] The fundamental equation for correct steering is (where $$varphi $$ and $$alpha $$ = Angle through which the axis of the outer wheel and inner wheel turns respectively, c = Distance between the pivots of the front axles and d = Wheel base)
Correct Answer
(C) $$cot varphi - cot alpha = frac{{ ext{c}}}{{ ext{b}}}$$
[#108] In a drag link quick return mechanism, the shortest link is always fixed. The sum of the shortest and longest link is
Correct Answer
(C) Less than sum of other two
[#109] The coefficient of fluctuation of speed is __________ of maximum fluctuation of speed and the mean speed.
Correct Answer
(D) Ratio
[#110] What is the number of instantaneous centers for an eight link mechanism?
Correct Answer
(B) 28