Theory Of Machine - Study Mode
[#431] The Grubler's criterion for determining the degrees of freedom (n) of a mechanism having plane motion is (where $$l$$ = Number of links and j = Number of binary joints)
Correct Answer
(C) n = 3($$l$$ - 1) - 2j
[#432] The maximum value of the pressure angle in case of cam is kept as
Correct Answer
(D) 30°
[#433] The example of higher pair is
Correct Answer
(D) All of the above
[#434] The velocity of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by (where $$omega $$ = Angular velocity of the cam shaft)
Correct Answer
(B) $$omega left( {{{ ext{r}}_1} + {{ ext{r}}_2}}
ight)sin heta sec 2 heta $$
[#435] With usual notations for different parameters involved, the maximum fluctuations of energy for a flywheel is given by
Correct Answer
(A) $$2{ ext{E}}{{ ext{C}}_{ ext{S}}}$$