DRILLS - Practice Mode

1) Which coolant oil is not diluted?

Blended oil Fatty oil Straight mineral oil Soluble oil

Correct Answer: Straight mineral oil

2) Which type of drill is used for drilling brass?

Quick helix Slow helix Standard helix Straight helix

Correct Answer: Slow helix

3) Which part of the drilling machine helps for the protection of the operator?

Base Switch Belt guard Depth gauge and stop

Correct Answer: Belt guard

4) Which drilling machine is used for light duty work?

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

Correct Answer: Sensitive drilling machine

5) What is the purpose of reducing speed by 3/4th of turning while reaming?

To get max finish Avoid breakage of tool To reduce max material To give less depth of cut

Correct Answer: Avoid breakage of tool

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