Theory of Machine
A friction circle is a circle drawn when a journal rotates in a bearing. Its radius depends upon the coefficient of friction and the

Angular velocity of journal
Clearance between journal and bearing
Magnitude of the forces on journal
Radius of journal

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
In a four bar chain or quadric cycle chain

Two are turning pairs and two are sliding pairs
Each of the four pairs is a turning pair
One is a turning pair and three are sliding pairs
Three are turning pairs and one is a sliding pair

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
The displacement of the reciprocating roller follower, when it has contact with the straight flanks of the tangent cam, is given by (where r₁ = Minimum radius of the cam, r₂ = Radius of the roller follower, and θ = Angle turned by the cam from the beginning of the follower displacement)

(r₁ + r₂) (1 + cosθ)
(r₁ - r₂) (1 - cosθ)
(r₁ - r₂) [(1 - cosθ)/cosθ]
(r₁ + r₂) [(1 - cosθ)/cosθ]

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Theory of Machine