Point or line contact between the two elements when in motion
Surface contact between the two elements when in motion
Elements of pairs not held together mechanically
Two elements that permit relative motion
B. Surface contact between the two elements when in motion
Slider crank mechanism
Four bar chain mechanism
Quick return motion mechanism
All of these
m/(m + M)
M/(m + M)
(m + M)/m
(m + M)/M
A very thin film of lubricant between the journal and the bearing such that there is contact between the journal and the bearing
A thick film of lubricant between the journal and the bearing
No lubricant between the journal and the bearing
A forced lubricant between the journal and the bearing
Turning pairs
Sliding pairs
Spherical pairs
Self-closed pairs
Longitudinal vibration
Transverse vibration
Torsional vibration
None of these
1-3 m/s
3-15 m/s
15-30 m/s
30-50 m/s
Twice
Four times
Eight times
Sixteen times
Mass and stiffness
Mass and damping coefficient
Mass and natural frequency
Damping coefficient and natural frequency
Radial component
Tangential component
Coriolis component
None of these
Above
Below
At
None of these
The algebraic sum of the secondary forces must be equal to zero
The algebraic sum of the couples about any point in the plane of the secondary forces must be equal to zero
Both (A) and (B)
None of these
Is same as that of velocity
Is opposite to that of velocity
Could be either same or opposite to velocity
Is perpendicular to that of velocity
Circular pitch
Diametral pitch
Module
None of these
1.4 N-s/m
18.52 N-s/m
52.92 N-s/m
529.2 N-s/m
One
Two
Four
Six
Inside admission valve
Outside admission valve
Piston slide valve
None of these
Parallel
Perpendicular
Both A and B
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
Less
More
Same
Data are insufficient to determine same
Depends upon
Is independent of
Either A or B
None of these
Straight line
Parabolic curve
Triangle
Rectangle
Circular
Tangent
Reciprocating
None of the above
Mean speed to the maximum equilibrium speed
Mean speed to the minimum equilibrium speed
Difference of the maximum and minimum equilibrium speeds to the mean speed
Sum of the maximum and minimum equilibrium speeds to the mean speed
1/2π × √(s/m)
1/2π × √(g/δ)
0.4985/√δ
Any one of these
Four
Five
Six
Seven
4, 4
4, 5
5, 4
4, 6
12
14
18
24
D₁/D₂
D₂/D₁
D₁.D₂
D₁
Directly proportional to speed
Directly proportional to (speed)²
Inversely proportional to speed
Inversely proportional to (speed)²
Equal to
Less than
Greater than
None of these