The example of lower pair is_______________?
(A) shaft revolving in a bearing
(B) straight line motion mechanisms
(C) automobile steering gear
(D) all of the above
(D) none of the above
Which of the following disciplines provides study of the relative motion between the parts of a machine and the forces acting on the parts__________________?
(A) theory of machines
(B) applied mechanics
(C) mechanisms
(D) kinetics
(D) kinematics
Hooke’s law holds good up to____________________?
(A) yield point
(B) limit of proportionality
(C) breaking point
(D) elastic limit
(D) plastic limit
Which of the following disciplines provides study of inertia forces arising from the combined effect of the mass and the motion of the parts_______________?
(A) theory of machines
(B) applied mechanics
(C) mechanisms
(D) kinetics
(D) kinematics
Relationship between the number of links (L) and number of pairs (P) is___________________?
(A) P = 2L-4
(B) P = 2L + 4
(C) P = 2L+2
(D) P = 2L-2
(D) P = L-4
A foot step bearing and rotor of a vertical turbine form examples of___________________?
(A) incompletely constrained motion
(B) partially constrained motion
(C) completely constrained motion
(D) successfully constrained motion
(D) none of the above
The number of links in pantograph mechanism is equal to______________?
(A) 2
(B) 3
(C) 4
(D) 5
(D) 6.
Sense of tangential acceleration of a link_________________?
(A) is same as that of velocity
(B) is opposite to that of velocity
(C) could be either same or opposite to velocity
(D) is perpendicular to that of velocity
(D) none of the above
A completely constrained motion can be transmitted with __________________?
(A) 1 link with pin joints
(B) 2 links with pin joints
(C) 3 links with pin joints
(D) 4 links with pin joints
(D) all of the above
Davis steering gear consists of__________________?
(A) sliding pairs
(B) turning pairs
(C) rolling pairs
(D) higher pairs
(D) lower pairs