DRILLING - Quiz

1) Which ore is used to extract zinc?

Bauxite Galena Calamine Cassiterite

2) Which tool is used to check the internal clearance of the bearing?

Steel rule Feeler gauge Depth gauge Vernier caliper

3) What is the angle of ACME thread ?

66 Degree 55 Degree 29 Degree 45 Degree

4) What is the advantage of centre screw in die stock?

To tighten the die To adjust the depth of cut To adjust the dia of internal thread To adjust the dia of external thread

5) Which term describes the axial movement of screw in one complete turn?

Lead Flank Pitch Depth