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ISRO Technician-B Machinist 2015
33

ISRO Technician-B Machinist Question Paper - 2015 (Set -1) with Answer Key

33) Which taper is used on spindle nose of the lathe head stock

Jerno taper

burn & shape taper

pitch taper

morse taper

Answer is:

morse taper

ISRO Technician-B Machinist Question Paper - 2015 (Set -1) with Answer Key

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Related ISRO Technician-B Machinist Question Paper - 2015 (Set -1) with Answer Key

34) 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 the above

Answer is:

to drill holes on a pitch circle diameter

35) Addendum of a gear means

Height of gear tooth above pitch circle

Total gear tooth height

Clearance of gear tooth

Height of gear tooth below pitch circle.

Answer is:

Height of gear tooth above pitch circle

Addendum of a gear means

36) As the ratio between length and diameter of a boring bar increases, rigidity

Increases

remains the same

decrease

none of the above

Answer is:

decrease

37) The thread angle of a metric thread is

55 degree

57.5 degree

60 degree

45 degree

Answer is:

60 degree

ISRO Technician-B Machinist Question Paper - 2015 (Set -1) with Answer Key

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