Which are not in exact alignment
Which are perfectly aligned
Whose axes intersect at a small angle
Have lateral misalignment
C. Whose axes intersect at a small angle
Young's modulus
Coefficient of elasticity
Elastic limit
Endurance limit
Directly proportional to the polar moment of inertia and to the distance of the point from the axis
Directly proportional to the applied torque and inversely proportional to the polar moment of inertia
Directly proportional to the applied torque and the polar moment of inertia
Inversely proportional to the applied torque and the polar moment of inertia
Best method
Extremely hazardous
Has no effect as regards fatigue strength
Cheapest method
Tensile strength
Compressive strength
Shear strength
Bending strength
Metric
Buttress
Acme
Square
2WD3n/Gd⁴
4WD3n/Gd⁴
8WD3n/Gd⁴
16WD3n/Gd⁴
Provide cushioning effect
Provide bearing area
Absorb shocks and vibrations
Provide smooth surface in place of rough surface
V-belt drive
Rope drive
Crossed flat belt drive
Chain drive
Tightening it properly
Increasing shank diameter
Grinding the shank
Making shank diameter equal to core diameter of thread.
Static load
Dynamic load
Impact load
Completely reversed load
Bolt
Tap bolt
Stud
None of these
Metric
Square
Buttress
Acme
Half
Same
Double
None of the above
0.5 to 1
1 to 2
3 to 5
5 to 10
p.d.σc
p.t.σc
n.d.t.σc
(p - d) t.σc
60°
55°
47°
29°
Muff coupling
Compression coupling
Flange coupling
All of these
Increasing its shank diameter
Increasing its length
Decreasing its shank diameter
Decreasing its length
Cast iron
Wrought iron
Mild steel
Aluminium
d.t.τu
πd.t.τu
π/4 × d².τu
π/4 × d² × t.τu
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
(1 - sinφ)/ (1 + sinφ)
(1 + sinφ)/ (1 - sinφ)
(1 - sinφ)/ (1 + cosφ)
(1 + cosφ)/ (1 - sinφ)
30°
45°
60°
80°
1.06
1.12
1.26
1.58
Increases
Decreases
Remain same
None of these
Direct tensile stress
Direct compressive stress
Direct bending stress
Direct shear stress
Measure forces
Apply forces
Store energy
All of these
Increases linearly
Decreases linearly
Remains same
Increases exponentially
1 kN-m
2 kN-m
3 kN-m
4 kN-m
20 to 30%
10 to 20%
30 to 40%
40 to 50%