ISRO Technician-B Machinist Question Paper - 2019 (Set -1) with Answer Key

ISRO Technician-B Machinist Question Paper - 2019 (Set -1) with Answer Key

21) Which of the following part of a shaper helps to lift the tool in return stroke?

Answer is:

Clapper block

Which of the following part of a shaper helps to lift the tool in return stroke?

22) The end clearance angle of a slotter parting tool is

Answer is:

10 degree

23) The point angle of a general purpose (standard) drill is

Answer is:

118 degree

Explanation:

For general purpose use point angle of twist drill is 118 Degree.

The point angle of a general purpose (standard) drill is

24) Find out the offset to be given to produce taper in a tail stock offset method if, the big diameter is 30 mm, small diameter is 26 mm, length of taper is 100 mm and the total length of die job is 200 mm

Answer is:

4 mm

25) Find the change gears (Driver/Driven) required to cut a 3 mm pitch on a job in a lathe having a lead screw of 6 mm pitch

Answer is:

60/120

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