0.124 - (0.684/T)
0.154 - (0.912/T)
0.175 - (0.841/T)
None of these
A. 0.124 - (0.684/T)
The stress concentration in static loading is more serious in ductile materials and less serious in brittle materials
The stress concentration in static loading is more serious in brittle materials and less serious in ductile materials
The toughness of a material increases when it is heated
The shear stress in a beam varies from zero at the neutral surface and maximum at the outer fibres
T₁/T₂ = μθ
log (T₁/T₂) = μθ
T₁/T₂ =eμθ
T₁/T₂ = log μθ
120°
180°
270°
360°
Normal pitch
Axial pitch
Diametral pitch
Module
40°
122°
136°
152°
Hollow saddle key
Hollow key
Soft key
None of these
Bottom side of belt as slack side
Top side of belt as slack side
Idler pulley
None of the above
1.2 d
1.6 d
2d
2.5 d
2
4
8
16
Increases linearly
Decreases linearly
Remains same
Increases exponentially
Minor diameter
Major diameter
Pitch diameter
None of these
X-axis as neutral axis
Y-axis as neutral axis
X-axis or Y-axis as neutral axis
Z-axis
Pitch circle to the top of a tooth
Pitch circle to the bottom of a tooth
Top of a tooth to the bottom of a tooth
Addendum circle to the clearance circle
Decreases the power transmitted
Increases the power transmitted
Increase the wrap angle
Increases the belt tension without increasing power transmission
Flaring
Brazing
Soft soldering
Fusion welding
Outer diameter
Hole diameter
Thickness
Mean diameter
8
12
18
20
2d
3d
4d
5d
Longitudinal stress
Hoop stress
Longitudinal and hoop stress
None of these
Knuckle joint
Cotter joint
Oldham coupling
Universal joint
Butt joint with single cover plate
Butt joint with double cover plate
Lap joint with one ring overlapping the other
Any one of the above
Less than
Equal to
More than
None of these
124 d
138 d
151 d
168 d
0.45
0.55
0.65
0.75
Bending stress
Shear stress
Tensile stress
Bearing stress
Mild steel
Dead mild steel
Medium carbon steel
High carbon steel
Metal strength by cycling
Metal hardness by surface treatment
Metal resistance to corrosion by coating
Fatigue limit by overstressing the metal by successively increasing loadings
Copper
Mild steel
Aluminium
Zinc
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
Intersecting and the teeth are curved
Non-intersecting and nonparallel and the teeth are curved
Non-intersecting and non-parallel and the teeth are straight
None of the above