W/2
2W/3
W/9
8W/9
B. 2W/3
Knife edge follower
Flat faced follower
Spherical faced follower
Roller follower
Normal pitch
Axial pitch
Diametral pitch
Module
Joint may not open up
Bolts are weakest elements
The resultant load on the bolt would not be affected by the external cyclic load
Bolts will not loosen during service
(1 - sinφ)/ (1 + sinφ)
(1 + sinφ)/ (1 - sinφ)
(1 - sinφ)/ (1 + cosφ)
(1 + cosφ)/ (1 - sinφ)
Loose in shaft and tight in hub
Tight in shaft and loose in hub
Tight in both shaft and hub
Loose in both shaft and hub
Reducing stress concentration
Ease of manufacture
Safety
Fullering and caulking
Angular bevel gears
Crown bevel gears
Internal bevel gears
Mitre gears
Woodruff key
Feather key
Flat saddle key
Hollow saddle key
Elastic limit
Ultimate tensile strength
Young's modulus
Endurance limit
0.75/ (0.75 + √v)
3/ (3 + v)
4.5/ (4.5 + v)
6/ (6 + v)
Bending stress only
A combination of torsional shear stress and bending
Direct shear stress only
A combination of bending stress and direct shear stress
d = t
d = 1.6 t
d = 2t
d = 6t
120°
180°
270°
360°
Surface of the top of the tooth
Surface of the tooth above the pitch surface
Surface of the tooth below the pitch surface
Width of the tooth measured along the pitch circle
Increases
Decreases
Remain same
None of these
Pitch diameter
Inside diameter
Outside diameter
Height
Static load
Dynamic load
Static as well as dynamic load
Completely reversed load
Measure forces
Apply forces
Store energy
All of these
(WD/ πd3) × K
(2WD/ πd3) × K
(4WD/ πd3) × K
(8WD/ πd3) × K
The Oil film pressure is generated only by the rotation of the journal
The oil film is maintained by supplying oil under pressure
Do not require external supply of lubricant
Grease is used for lubrication
Variations in load acting on a member
Variations in properties of materials in a member
Abrupt change of cross-section
All of these
Cold working
Shot peening
Surface decarburisation
Under stressing
Rectangular
Elliptical
I-section
Any one of these
Single
Double
Triple share
None of these
Helix angle
Pressure angle
Pitch lead angle
None of these
Is just sufficient to hold parts together
Approaches yield point
Is 50% of yield point
Is about yield point divided by safety factor
Neutral surface
Upper surface
Lower surface
None of these
4F/ πd²
6F/ πd²
8F/ πd²
16F/ 3πd²
A pair of tongs
Hand wheel of a punching press
Lever of a loaded safety valve
Handle of a hand pump
Bottom of groove of the pulley
Sides and bottom of groove of the pulley
Anywhere in the groove of the pulley
Sides of groove of the pulley