DRILLING - Quiz

1) Which method is suitable to remove the broken stud very near to the surface?

Ezy out method Making drill hole Prick punch method Using square taper punch

2) What is the angle of counter sink head screws?

60 Degree 90 Degree 105 Degree 120 Degree

3) Which angle is determined by the helix angle in drill bit?

Point angle Rake angle Chisel angle Clearance angle

4) What is the use of reamer?

Drill a hole Enlarging a hole Threading a hole Finishing to correct size of the drilled hole

5) What is the purpose of type N twist drills?

Used for hard material Used for brittle material Used for soft and tough material Used for normal low carbon steel