DRILLS - Practice Mode

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

10mm 11mm 12mm 13mm

Correct Answer: 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

Correct Answer: 12.5 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

Correct Answer: Sensitive drilling machine

4) Which material is used for making tap?

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

Correct Answer: High speed steel

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

Body Recess Shank Bevel lead

Correct Answer: Recess

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