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Fitter Set-2
Drilling
45

Drilling MCQ with Answers

45) What is the reason for rough holes in drilling?

Unequal point thinning

Drill point not in centre

Clearance angle is incorrect

Drill cutting edges are not sharp

Answer is:

Drill cutting edges are not sharp

Drilling MCQ with Answers

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Related Drilling MCQ with Answers

46) Determine the drill size for finishing Dia 19 mm reaming hole (as per table under size 0.2 & over size 0.05 mm)?

18.75 mm

19.00 mm

19.25 mm

19.05 mm

Answer is:

18.75 mm

47) What is the reason if the drilled hole is larger than the drill size?

Drill is not sharp

Feed rate is too high

Cutting speed is too high

Unequal angle of cutting edge

Answer is:

Unequal angle of cutting edge

48) What is the term, the top surface joining the two sides of a thread?

Root

Crest

Flank

Pitch

Answer is:

Crest

49) What V denotes in grinding wheel specification 32A46H8V?

Bond

Grade

Abrasive

Grain size

Answer is:

Bond

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