Rolling and Extrusion -I starter quiz

Which of the following is also called as forward hot extrusion?

A strip with a cross-section of 150 mm × 6 mm is being rolled with 30% reduction in thickness of strip using 400 mm diameter rolls. The Roll Bite Angle (in degrees) is _____.

Which of the following statements is correct in Rolling Process ?

Which of the following metal is best suitable for extrusion either hot or cold ?

Which of the following statement is NOT correct in extrusion ?

Which of the following statements is correct regarding rolling process ?

a) The roll separating force can be reduced by using small rollers.

b) To avoid roll bending, rolls with convex chambers is used.

c) Rolling is a cold forming operation.

d) All of the above.

A 5 mm thick aluminum alloy strip is rolled to a thickness of 4 mm using steel roller of Radius 100 mm. The length of contact (in mm) is___.