DRILLS - Quiz

1) What is the maximum size of parallel shank twist drill?

10mm 11mm 12mm 13mm

2) What is the maximum size of drill can be hold in sensitive drilling machine?

10.0 mm 12.5 mm 15.0 mm 20.0 mm

3) Which drilling machine is capable of drilling upto 12.5 mm diameter?

Pillar drilling machine Radial drilling machine Column drilling machine Sensitive drilling machine

4) Which material is used for making tap?

Cast iron Mild steel High speed steel Aluminium alloy (high grade)

5) Which portion of the reamer is reduced in diameter below the cutting edge?

Body Recess Shank Bevel lead