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ISRO Technician-B
Fitter
ISRO Technician-B Fitter 2019
40

ISRO Technician-B Fitter Question Paper - 2019 (Set - 1) with Answer Key

40) Tool chatter is caused by

Smaller clearance angle

Excessive clearance angle

High Rake angle

Smaller rake angle

Answer is:

Excessive clearance angle

ISRO Technician-B Fitter Question Paper - 2019 (Set - 1) with Answer Key

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Related ISRO Technician-B Fitter Question Paper - 2019 (Set - 1) with Answer Key

41) High carbon steels are machined using tools having

Small positive rake angle

Large positive rake angle

Zero rake angle

Negative rake angle

Answer is:

Negative rake angle

High carbon steels are machined using tools having

42) If the recommended cutting speed of mild steel is 20 m/min, what is the rotational speed (rpm) required for a 020 mm drill bit.

320 rpm

1050 rpm

120 rpm

2100 rpm

Answer is:

320 rpm

43) The angle of the prick punch used for witness marks is

90 degree

60 degree

30 degree

100 degree

Answer is:

60 degree

44) Helix angle in twist drill determines the

Clearance angle

Rake Angle

Point angle

Inclination

Answer is:

Rake Angle

Helix angle in twist drill determines the

ISRO Technician-B Fitter Question Paper - 2019 (Set - 1) with Answer Key

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