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The maximum possible draft in cold rolling of sheet increases with the

A. Increase in coefficient of friction

B. Decrease in coefficient of friction

C. Decrease in roll radius

D. Decrease in roll velocity

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  1. A left hand tool on a lathe cuts most efficiently when it travels
  2. In a metal arc welding process, metal transfer across the arc may take place by a method of material…
  3. A twist drill is a
  4. Which of the following parameters govern the value of shear angle in continuous chip formation?
  5. The broaching operation in which either the work or the tool moves across the other, is known as
  6. In an interchangeable assembly, shafts of size 25.000 -0.0100⁺⁰⁰⁴⁰…
  7. In order to achieve a specific surface finish in single point turning, the most important factor to…
  8. If a particular Fe-C alloy contains less than 0.83% carbon, it is called
  9. The cutting speed for counter-boring should be _________ that of drilling operation.
  10. Which of the following statement is correct for oblique cutting system?
  11. In determining the various forces on the chip, Merchant assumed that the
  12. Relief angles on high speed steel tools usually vary from
  13. The grade of grinding wheel depends upon
  14. High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools.
  15. Flank wear occurs mainly on the
  16. The drill spindles are provided with standard taper known as
  17. The operation of producing grooves around the periphery of a cylindrical or conical workpiece is called
  18. In which of the following machine, the work is usually rotated while the drill is fed into work?
  19. Lapping is an operation of
  20. Which of the following statement is wrong as regard to down milling?
  21. A hole is of dimension φ = 9 ₊0⁺⁰⁰¹⁵ mm. The corresponding…
  22. Cast iron during machining produces
  23. The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is _________ cutting…
  24. Tool signature consists of __________ elements.
  25. In electro discharge machining, tool is made of
  26. The operation of making a cone-shaped enlargement of the end of a hole is known as
  27. In Oxyacetylene gas welding, temperature at the inner cone of the flame is around
  28. Hard and tough materials like cast iron should be turned at
  29. Which of the following operation is first performed?
  30. The tool made of cemented carbide wear out faster at