Cast iron does not require any coolant during reaming because, graphite in the cast iron acts as a lubricant.
2) Which one of the following metals does not require any coolant during reaming ?
Answer is:
Cast iron
Explanation:
Related Drilling and Reaming MCQ with Answers
Answer is:
Flutes
Explanation:
Flutes are the spiral grooves which run to the length of the drill. The flutes helps to
1. To form the cutting edges
2. To curl the chips and allow these to come out
3. The coolant to flow to the cutting edge.
Answer is:
Drill drift
Explanation:
Drill drift is a wedge shaped tool used for removing the taper shank tools from the nose of the machine spindle.
Answer is:
Blind hole
Explanation:
A hole, which is not made through full depth of the component is known as blind hole.
Answer is:
Drills above 31.75 mm up to 50.50 mm
Explanation:
For Morse Taper MT-4 the range starts from 31.7 mm and till 50.50 mm (Approx).
