Multiple choice

With respect to metal working, match Group A with Group B:

     
Group A Group B
P : Defect in extrusion I : alligatoring
Q : Defect in rolling II : scab
R : Product of akew rolling III : fish tail
S : Product of rolling through cluster mill IV : seamless tube
V : thin sheet with tight tolerance
VI : semi-finished balls of ball bearing

  1. P - II, Q - III, R - VI, S - V

  2. P - III, Q - I, R - VI, S - V

  3. P - III, Q - I, R - IV, S - VI

  4. P - I, Q - II, R - V, S - VI
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In extrusion defeat will be fish tail. In rolling defect will be alligatoring. Due to skew rolling we get semi-finished balls. We get thin sheet with tight tolerance as a product of rolling through cluster mill. So P - III, Q - I, R - VI, S - V

Keep practicing — related questions