1. increase in coefficient of friction
2. decrease in coefficient of friction
3. decrease in roll radius
4. increase in roll velocity
increase in coefficient of friction
1. Drawing
2. Spinning
3. Extrusion
4. Rolling
Extrusion
1. 25√5
2. 50√5
3. 100√5
4. 200√5
50√5
1. Equal to the major diameter of the thread
2. Equal to the pitch diameter of the thread
3. Little higher than the minor diameter of the thread
4. Little higher than the pitch diameter of the thread
Equal to the pitch diameter of the thread
1. impact extrusion
2. closed cavity extrusion
3. hydrostatic extrusion
4. backward extrusion
hydrostatic extrusion
1. ferrous materials
2. ductile materials
3. hard materials
4. none of the above
ductile materials
1. 0
2. 2.07
3. 20.7
4. 41.4
41.4
1. Pure compression
2. Pure shear
3. Compression and shear
4. Tension and shear
Compression and shear
1. 8
2. 9
3. 10
4. 17
10
1. A-2, B-3, C-5, D-1
2. A-2, B-3, C-5, D-4
3. A-1, B-3, C-5, D-4
4. A-2, B-4, C-3, D-1
A-2, B-3, C-5, D-1