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ISRO
ISRO Technician-B
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ISRO Technician-B Fitter 2019
43

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

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

90 degree

60 degree

30 degree

100 degree

Answer is:

60 degree

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

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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

45) For a turning operation, if the spindle speed is 128 rpm and the diameter of the rod is 25 mm, what is the cutting speed?

100 m/min

10 m/min

20 m/min

25 m/min

Answer is:

10 m/min

46) For taper turning and boring

The tool should be set below the centre

The tool should be set above the centre

The tool should be set exactly at the centre

The tool should be set near to the centre

Answer is:

The tool should be set exactly at the centre

47) For turning lengthy tapers with a small taper angle, the method of taper turning employed is

offsetting the tailstock

form tool plunging

swiveiling the compound slide

Combination of the lathe cross slide and the compound slide movement

Answer is:

offsetting the tailstock

Explanation:

For turning lengthy tapers with a small taper angle, the method of taper turning employed is offsetting the tailstock.

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

For more MCQ's Click Here

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

60 degree

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

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

44) Helix angle in twist drill determines the

Rake Angle

45) For a turning operation, if the spindle speed is 128 rpm and the diameter of the rod is 25 mm, what is the cutting speed?

10 m/min

46) For taper turning and boring

The tool should be set exactly at the centre

47) For turning lengthy tapers with a small taper angle, the method of taper turning employed is

offsetting the tailstock

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