The cutting angle of a flat drill varies from

A. 3° to 8°

B. 20° to 30°

C. 60° to 90°

D. 90° to 120°

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  1. Which of the following operation is first performed?
  2. The increase in depth of cut and feed rate __________ surface finish.
  3. A right hand tool on a lathe cuts most efficiently when it travels
  4. The abrasive recommended for grinding materials of high tensile strength is
  5. In the relation VTn = C, the value of n for ceramic tools is
  6. Larger end cutting edge angle _________ tool life.
  7. In a plain milling cutter, the portion of the gash adjacent to the cutting edge on which the chip impinges…
  8. In centreless grinding, the surface speed of regulating wheel is
  9. In order to achieve a specific surface finish in single point turning, the most important factor to…
  10. Tool life is measured by the
  11. Crater wear is predominant in
  12. In drilling softer materials, the cutting speed is _________ as compared to harder materials.
  13. A single point tool has
  14. For machining a mild steel workpiece using carbide tool, the maximum material will be removed at a temperature…
  15. If the diameter of the hole is subject to considerable variation, then for locating in jigs and fixtures,…
  16. The effect of setting a boring tool above centre height leads to
  17. When the tool moves parallel to the lathe axis, the movement is termed as
  18. The operation in which oil is permeated into the pores of a powder metallurgy product is known as
  19. For turning small taper on long workpiece, the suitable method is
  20. A set of eight form relieved milling cutters for each module is provided to enable cutting of gears…
  21. In abrasive jet machining, as the distance between the nozzle tip and the work surface increases, the…
  22. Which one of the following is a solid state joining process?
  23. In an interchangeable assembly, shafts of size 25.000 -0.010⁺⁰⁰⁴⁰…
  24. The average cutting speed for turning mild steel with a high speed steel tool is
  25. For machining a cast iron workpiece by a high speed steel tool, the average cutting speed is
  26. Which of the following statement is wrong about ultrasonic machining?
  27. What is the type of welding defect caused due to poor deposition of weld rod is called?
  28. A shaft has a dimension, φ9 +0.025⁺⁰⁰⁰⁹, the respective values…
  29. Dielectric is used in
  30. The lip angle is the angle