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

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

56) Find the cutting speed ofr a tool to cut a shaft of 14 mm radius rotating at 2 revolutions per secon

Answer is:

10.56 m/min

57) What is the depth of thread for M10 x 1.5?

Answer is:

0.92 mm

58) A tool with a top rake angle of 12 degree and a front clearance angle of 6 degree is set on a lathe at a level 2 mm above the centre of a circular rod being turned. The point where tool tip touches the job subtends 4 degree from the horizontal line joining

Answer is:

16 and 2 degree

59) A mild steel rod of dia 40 mm and length 100 mm has to be turned to dia 30 mm in one cut for full length using HSS tool with a feed rate of 0.1 mm/revolution. Determine the turning time with a speed of 200 rpm.

Answer is:

5 min

60) Assume that front clearance angle of a lathe tool is 8 degree and top rake is 15 degree. Then the wedge angle is

Answer is:

67 degree

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