DRILLING - Practice Mode

1) What is the name of the operation to enlarge the hole for given depth?

Reaming Spot facing Counter boring Counter sinking

Correct Answer: Counter boring

2) What will happen if the clearance angle of drill is more?

Cutting edge will be blunt Cutting edge will not be sharp Cutting edge will become weak Cutting edge will not cut material

Correct Answer: Cutting edge will become weak

3) What will happen if the spindle running out of centre while drilling?

Drill will break Drills are over heated Drill make rough hole Over sized holes are made

Correct Answer: Over sized holes are made

4) What A represents in grinding wheel specification 32A46H8V?

Grade Grain size Type of bond Type of abrasive

Correct Answer: Type of abrasive

5) What is to be done after dressing the grinding wheel to run concentric?

Truing Glazing Loading Dressing

Correct Answer: Truing

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