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ISRO Technician-B Machinist 2016
38

ISRO Technician-B Machinist Question Paper - 2016 (Set -1) with Answer Key

38) The lead in a double start thread is

Half the pitch

Equat to pitch

Double the pitch

None of the above

Answer is:

Double the pitch

ISRO Technician-B Machinist Question Paper - 2016 (Set -1) with Answer Key

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Related ISRO Technician-B Machinist Question Paper - 2016 (Set -1) with Answer Key

39) Saw tooth thread is a form of

Square thread

thread

Modified square thread

Trapezoidal thread

Answer is:

Trapezoidal thread

40) A hole is to be reamed on Mild Steel with a 8mm reamer. If the u ndersize is 0.2mm and oversize is 0.05mm, diameter of the drill for drilling the hole before reaming, ideally should be

7.75mm

7.95mm

8.05mm

8.2mm

Answer is:

7.75mm

A hole is to be reamed on Mild Steel with a 8mm reamer. If the u ndersize is 0.2mm and oversize is 0.05mm, diameter of the drill for drilling the hole before reaming, ideally should be

41) Predominant alloying element in stainless steel is

Cobalt

Mangenese

Nickel

Chromium

Answer is:

Chromium

42) The carbon content is high carbon steel is

More than 0.6%

More than 1.4%

More than 14%

More than 50%

Answer is:

More than 0.6%

ISRO Technician-B Machinist Question Paper - 2016 (Set -1) with Answer Key

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