Completely constrained motion
Incompletely constrained motion
Successfully constrained motion
None of these
B. Incompletely constrained motion
Input link and coupler
Input link and fixed link
Output link and coupler
Output link and fixed link
Zero
Minimum
Maximum
None of these
45°
90°
135°
180°
60 to 80 r.p.m.
80 to 100 r.p.m.
100 to 200 r.p.m.
200 to 300 r.p.m.
90° and 180°
45° and 225°
180° and 270°
270° and 360°
Infinity
Zero
Any +ve value
Any -ve value
Incompletely constrained motion
Partially constrained motion
Completely constrained motion
Successfully constrained motion
r sinφ
r cosφ
r tanφ
(r/2) cosφ
Tension in the tight side of the belt
Tension in the slack side of the belt
Sum of the tensions on the tight side and slack side of the belt
Average tension of the tight side and slack side of the belt
Closed pair
Open pair
Mechanical pair
Rolling pair
The system is critically damped
There is no critical speed in the system
The system is also statically balanced
There will absolutely no wear of bearings
For constant velocity ratio transmission between two gears, the common normal at the point of contact must always pass through a fixed point on the line joining the centres of rotation of gears.
For involute gears, the pressure angle changes with the change in centre distance between gears.
The epicyclic gear trains involve rotation of atleast one gear axis about some other gear axis.
All of the above
Equal to
Less than
Greater than
None of these
Same
Different
Unpredictable
None of these
sinα = b/c
cosα = c/b
tanα = c/2b
cotα = c/2b
Slider crank mechanism
Kinematic chain
Five link mechanism
Roller cam mechanism
Over-damped
Under damped
Critically damped
Without vibrations
Mass
Friction
Inertia
Resisting force
Machine
Structure
Mechanism
Inversion
[(r² + R²) cosφ]/2
[(r² + R²) sinφ]/2
[(r + R) cosφ]/2
[(r + R) sinφ]/2
Will remain same
Will change
Could change or remain unaltered depending on which link is fixed
Will not occur
Be zero
Act in upward direction
Act in downward direction
None of these
Velocity of slider
Angular velocity of the link
Both (A) and (B)
None of these
Equal to velocity ratio of a gear train
Reciprocal of velocity ratio of a gear train
Always greater than unity
Always less than unity
Upward
Downward
Forward
Backward
3 Hz
3π Hz
6 Hz
6π Hz
Slider-crank mechanism
Velocity polygon
Acceleration polygon
Four bar chain mechanism
Screw pair
Spherical pair
Turning pair
Sliding pair
During which the follower returns to its initial position
Of rotation of the cam for a definite displacement of the follower
Through which the cam rotates during the period in which the follower remains in highest position
Moved by the cam from the instant the follower begins to rise, till it reaches its highest position
Each of the four pairs is a turning pair
One is a turning pair and three are sliding pairs
Two are turning pairs and two are sliding pairs
Three are turning pairs and one is a sliding pair