Category: Theory of Machines Mcqs

A.Bevel gears
B.Hooke’s joint
C.Oldham’s coupling
D.None of the above

A.Spherical pairs
B.Turning pairs
C.Rolling pairs
D.Lower pairs
E.Higher pairs

A.The amplitude of vibration decreases with time
B.The amplitude of vibration does not change with time
C.Only transient increases indefinitely with time
D.The total energy in the system does not change with time
E.None of the above

A.The direction of relative velocity vector for the two coincidental points rotated by 90? in the direction of the angular velocity of the rotation of the link
B.The direction of relative velocity vector for the two coincidental points rotated by 180? in the direction of the angular velocity of the rotation of the link
C.The direction of relative velocity vector for the two coincidental points in the direction directly opposite to that of angular velocity
D.The direction at right angles to that of relative angular velocity vector
E.None of the above

A.Piston rod
B.Crank
C.Piston pin
D.Connecting rod
E.Cross-head

A.Whenever the forms of the mating teeth are such that contact between them can occur at some place other than along the correct path of contact
B.When gears do not move smoothly in absence of lubrication
C.When the pitch of the gears is not same
D.When the gear teeth are under cut
E.None of the above

A.sliding pair
B.Rolling pair
C.screw pair
D.Turning pair

A.Any point on pitch curve
B.The point on cam pitch circle having the maximum pressure angle
C.Any point on pitch curve
D.A point at a distance equal to pitch circle radius from the centre
E.None of the above

A.Weaker teeth
B.Non-uniform motion transmission
C.Bigger size of gear teeth
D.Wider base and stronger teeth
E.Narrow base and weaker teeth

A.working depth
B.dedendum
C.addendum
D.None of the above