μwr
¾μWR
(2/3) μWR
½μWR
D. ½μWR
Shoe brake
Band brake
Band and block brake
Internal expanding brake
Slow speed
Moderate speed
Highs peed
Any one of these
Four bar linkage
6 bar linkage
8 bar linkage
3 bar linkage
0° and 90°
0° and 180°
90° and 180°
180° and 360°
Reduce vibration
Reduce slip
Ensure uniform loading
Ensure proper alignment
Ball and socket i
Piston and cylinder
Cam and follower
Both (A) and (B) above
Pitch circle
Base circle
Prime circle
Outer circle
The parts of a machine move relative to one another, whereas the members of a structure do not move relative to one another
The links of a machine may transmit both power and motion, whereas the members of a structure transmit forces only
A machine transforms the available energy into some useful work, whereas in a structure no energy is transformed into useful work
All of the above
10° to 20°
20° to 30°
30° to 40°
60° to 80°
4, 4
4, 5
5, 4
4, 6
(1/2π). √(kG/g)
(1/2π). √(2kG/g)
2π. √(kG/g)
2π. √(2kG/g)
Same
Opposite
Perpendicular
None of these
Universal joint
Knuckle joint
Oldham's coupling
Flexible coupling
Number of cycles per hour
Number of cycles per minute
Number of cycles per second
None of these
In plane rotation with variable velocity
In plane translation with variable velocity
In plane motion which is a resultant of plane translation and rotation
Restrained to rotate while sliding over another body
v
(2/3). v
(3/2). v
(9/4). v
1/24
1/8
4/15
12
tan (α + φ)/tanα
tanα/tan (α +φ)
tan (α - φ)/tanα
tanα/tan (α - φ)
Critical damping ratio
Damping factor
Logarithmic decrement
Magnification factor
Simple gear train
Compound gear train
Reverted gear train
Epicyclic gear train
Piston and cylinder of a reciprocating steam engine
Shaft with collars at both ends fitted into a circular hole
Lead screw of a lathe with nut
Ball and a socket joint
Sliding and turning pairs
Sliding and rotary pairs
Turning and rotary pairs
Sliding pairs only
Base circle
Pitch circle
Prime circle
Outer circle
Any point on pitch curve
The point on cam pitch curve having the maximum pressure angle
Any point on pitch circle
The point on cam pitch curve having the minimum pressure angle
45° in the direction of rotation of the link containing the path
45° in the direction opposite to the rotation of the link containing the path
90° in the direction of rotation of the link containing the path
180° in the direction opposite to the rotation of the link containing the path
Radial component only
Tangential component only
Coriolis component only
Radial and tangential components both
Watts mechanism
Grasshopper mechanism
Roberts mechanism
Peaucelliers mechanism
Cylindrical pair
Turning pair
Rolling pair
Sliding pair
50°-60°
60°-70°
70°-80°
80°-90°
Vector sum of radial component and coriolis component
Vector sum of tangential component and coriolis component
Vector sum of radial component and tangential component
Vector difference of radial component and tangential component