1. ≥ α
2. ? ≤ α
3. Both (a) and (b)
4. None of these
≥ α
1. ≥ α
2. ? ≤ α
3. Both (a) and (b)
4. None of these
? ≤ α
1. Acme
2. Square
3. Buttress
4. All of these
Acme
1. Difference between the addendum of one gear and the addendum of the mating gear
2. Difference between the tooth space of the gear and the tooth thickness of the mating gear measured on the pitch circle
3. Intentional extension of centre distance between two gears
4. Does not exist
Difference between the tooth space of the gear and the tooth thickness of the mating gear measured on the pitch circle
1. Primary tensile stresses and secondary shear stresses
2. Primary shear and secondary shear stresses
3. Primary shear stresses and secondary tensile stresses
4. Primary tensile stresses and secondary compressive stresses
Primary shear and secondary shear stresses
1. Barth key
2. Kennedy key
3. Lewis key
4. Woodruff key
Barth key
1. WRm tan ( – α)
2. WRm tan (? + α)
3. WRo tan α
4. WRo tan ?
WRm tan (? + α)
1. 1 and 2 are correct
2. 2 and 3 are correct
3. 1 and 3 are correct
4. 1, 2 and 3 are correct
1 and 3 are correct
1. More than 50 %
2. Less than 50 %
3. Equal to 50 %
4. None of these
Less than 50 \%
1. ≥ 50 %
2. ≤ 50 %
3. Equal to 50 %
4. None of these
≥ 50 \%