Multiple Choice Questions On Machine Tool

26. To clean a file, it is.......

   A.Dipped in water

   B.Dipped in dilute alcohol

   C.Rubbed on stone

   D.Rubbed on wood

   E.Clean with a file card

27. A good lubricant for thread-cutting operation is.......

   A.Graphaite

   B.White lead

   C.Mineral lard oil

   D.Water soluble oil

   E.Emulsified oil

28. The power is transfitted by lead screw to the carriage through.........

   A.Gear box

   B.Worm and gear

   C.Rack and pinion

   D.Half nut

   E.Apron mechanism

29. To clean a file, it is......

   A.Dipped in water

   B.Dipped in dilute alcohol

   C.Rubbed on stone

   D.Rubbed on wood

   E.Cleaned with a file card

30. Angular clearance provided on dies is of the order of.......

   A.5^o to 10^o

   B.3^o to 5^o

   C.1/2^o to 1^o

   D.0.1^o to 0.5^o

   E.None of the above

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