DRILLING - Quiz

1) What is the name of the defect, if the surface of the grinding wheel develops smooth and shining appearance?

Glazing Truing Loading Dressing

2) Why agricultural equipment is made up of wrought iron?

Low cost Heavy weight Wear resistant Corrosion resistant

3) What is the range of carbon content in cast iron alloy?

2 to 4% 5 to 9% 6 to 9% 10 to 12%

4) What is the operation of bevelling the end of a drilled hole ?

Reaming Spot facing Counter boring Counter sinking

5) What is the effect if clearance angle is incorrect?

Over sized holes Over heated drills Rough holes Broken drill