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ISRO Technician-B Machinist 2016
46

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

46) H7/k6 is a

Locational transition fit

Locational clearance fit

Locational interference fit

Medium drive fit

Answer is:

Locational transition fit

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

47) The Youngs modulus of steel is

207 Gpa

120 GPa

70 Gpa

50 Mpa

Answer is:

207 Gpa

48) Crater wear occurs mainly due to

Abrasion

Diffusion

Oxidation

Adhesion

Answer is:

Diffusion

49) A milling cutter of 80mm diameter has nine teeth. It is used to mill a 240mm long work piece. The run over is 4mm and the depth of cut is 5mm. A cutting speed of 12 meters/min. and feed per tooth of 0.15mm has been selected. Determine the milling time.

12.35 min

1.18 min

4.0 min

23.5 min

Answer is:

4.0 min

50) Formula to calculate the value of setover using tailstock setover method to turn taper from diameter D to diameter d to a certain length l of a job (Total length of the job is L) is

630 (D-d)/(2Lx1)

(D-d)/(2L)

(D-d)L/(2l)

(D-d)l/L

Answer is:

(D-d)L/(2l)

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

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