P = W tan α
P = W tan (α + φ)
P = W (sin α + μ cos α)
P = W (cos α + μ sin α)
C. P = W (sin α + μ cos α)
Perpendicular to the acceleration force
Along the direction of acceleration force
Opposite to the direction of acceleration force
None of the above
Closed pair
Open pair
Mechanical pair
Rolling pair
Grasshopper mechanism
Watt mechanism
Peaucellier's mechanism
Tchebicheff mechanism
Permanent instantaneous centres
Fixed instantaneous centres
Neither fixed nor permanent instantaneous centres
None of the above
Wear is less
Power absorbed is less
Both wear and power absorbed are low
The pressure developed being high provides tight sealing
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
One binary joint
Two binary joints
Three binary joints
Four binary joints
Of relative velocity vector for the two coincident points rotated by 90° in the direction of the angular velocity of the rotation of the link
Along the centripetal acceleration
Along tangential acceleration
Along perpendicular to angular velocity
Two times
Four times
Eight times
Sixteen times
(1/2). μ W (r₁ + r₂)
(2/3). μ W (r₁ + r₂)
(1/2). μ W [(r₁³ - r₂³)/(r₁² - r₂²)]
(2/3). μ W [(r₁³ - r₂³)/(r₁² - r₂²)]
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
One-third
Two-third
Double
Three times
(1/2) μ W R
(2/3) μ W R
(3/4) μ W R
μ W R
6 times more
6 times less
2.44 times more
2.44 times less
Velocity
Displacement
Rate of change of velocity
All of the above
All four pairs are turning
Three pairs turning and one pair sliding
Two pairs turning and two pairs sliding
One pair turning and three pairs sliding
l - 2
l - 1
l
l + 1
Simple gear train
Compound gear train
Reverted gear train
Epicyclic gear train
12
16
25
32
0
1
2
-1
Is in motion
Is at rest
Just begins to slide over the surface of the other body
None of the above
Maximum
Minimum
Zero
None of these
Second inversion of double slider crank chain
Third inversion of double slider crank chain
Second inversion of single slider crank chain
Third inversion of slider crank chain
Over-damped
Under damped
Critically damped
Without vibrations
The net dynamic force acting on the shaft is equal to zero
The net couple due to the dynamic forces acting on the shaft is equal to zero
Both (A) and (B)
None of the above
Zero
Minimum
Maximum
None of these
At the instantaneous center of rotation, one rigid link rotates instantaneously relative to another for the configuration of mechanism considered
The two rigid links have no linear velocities relative to each other at the instantaneous centre
The two rigid links which have no linear velocity relative to each other at this center have the same linear velocity to the third rigid link
The double centre can be denoted either by O2 or O12, but proper selection should be made
Open belt drive is recommended
Crossed belt drive is recommended
Both open belt drive and crossed belt drive is recommended
The drive is recommended depending upon the torque transmitted
0.25
0.5
1
2
Simple
Compound
Binary
None of these