Have contact at the bottom most of the bearing
Move towards right of the bearing making no metal to metal contact
Move towards right of the bearing making the metal to metal contact
Move towards left of the bearing making metal to metal contact
D. Move towards left of the bearing making metal to metal contact
Tensile stress
Compressive stress
Shear stress
Bending stress
Longitudinal stress
Hoop stress
Longitudinal and hoop stress
None of these
2μ sinθ/(θ + sinθ)
μ sinθ/(2θ + sin 2θ)
4μ sinθ/(θ + sinθ)
4μ sinθ/(2θ + sin 2θ)
90
60
120
100
They are cheap
They can work at high temperature
They are unaffected by moisture and humidity
None of the above
Over head shaft
Counter shaft
Line shaft
All of these
Helical compression spring
Spiral spring
Torsion spring
Belleville spring
Base circle
Pitch circle
Addendum circle
Dedendum circle
Provide cushioning effect
Provide bearing area
Absorb shocks and vibrations
Provide smooth surface in place of rough surface
Short bearing
Long bearing
Medium bearing
Square bearing
Remains constant at all speeds
Is minimum at zero speed and increases monotonically with increase in speed
Is maximum at zero speed and decreases monotonically with increase in speed
Becomes minimum at an optimum speed and then increases with further increase in speed
Which are perfectly aligned
Which are not in exact alignment
Which have lateral misalignment
Whose axes intersect at a small angle
Low carbon steel
High carbon steel
Medium carbon steel
High speed steel
Spindles of bench vices
Railway carriage couplings
Feed mechanism of machine tools
Screw cutting lathes
X-axis as neutral axis
Y-axis as neutral axis
X-axis or Y-axis as neutral axis
Z-axis
T₁ - T₂ + Tc
T₁ + T₂ + Tc
(T₁ - T₂ + Tc)/2
(T₁ + T₂ + Tc)/2
In a direction parallel to the cam axis
In a direction perpendicular to the cam axis
In any direction irrespective of cam axis
Along the cam axis
40°
122°
136°
152°
Woodruff key
Feather key
Flat saddle key
Gib head key
Medium series whose bore is 5 mm
Medium series whose bore is 25 mm
Light series whose bore is 25 mm
Light series whose bore is 5 mm
Nickel
Chromium
Nickel and chromium
Cobalt and molybdenum
Needle roller bearings
Tapered roller bearings
Spherical roller bearings
Cylindrical roller bearings
[(√P1 + √P2)/2]²
P1 + P2
2 × (P1 + P2)
[2 × (P1 + P2)] + Pc Where Pc is centrifugal tension
5°
8°
15°
25°
Ductile materials
Brittle materials
Equally serious in both cases
Depends on other factors
0.20
0.35
0.50
0.65
Helical spring
Conical spring
Flat spiral spring
Volute spring
0.4 times
0.6 times
0.7 times
0.8 times
εc + 2εl
2εc + εl
εc + εl²
εc² + εl
In a direction perpendicular to the cam axis
In a direction parallel to the cam axis
In any direction irrespective of cam axis
Along the cam axis