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ISRO Technician-B Machinist 2012
42

ISRO Technician-B Machinist Question Paper - 2012 (Set -1) with Answer Key

42) Which is the hardest tool material next to diamond?

HCS

HSS

CBN

None of these

Answer is:

CBN

Explanation:

Cubic boron nitride of the following is the hardest cutting tool material next to diamond

ISRO Technician-B Machinist Question Paper - 2012 (Set -1) with Answer Key

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Related ISRO Technician-B Machinist Question Paper - 2012 (Set -1) with Answer Key

43) Indexing head in a milling machine is used

To reduce the speed of machining

To improve the surface finish

To drill holes on a pitch circle diameter

None of these

Answer is:

To drill holes on a pitch circle diameter

44) Zero rake angle is provided on a cutting tool for

Machining ductile material

Machining brittle material

Machining malleable material

Machining rubber

Answer is:

Machining malleable material

Zero rake angle is provided on a cutting tool for

ISRO Technician-B Machinist Question Paper - 2012 (Set -1) with Answer Key

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