INDUSTRIAL ENGINEERING – GEAR CUTTING MACHINE MCQS

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INDUSTRIAL ENGINEERING – GEAR CUTTING MACHINE MCQS

GEAR CUTTING MACHINE MCQS

  1. Tool signatures comprise
  2. (a) 4 elements
    (b) 5 elements
    (c) 6 elements
    (d) 7 elements
    (e) 8 elements.

    7 elements

  3. In metal cutting at speed above 20 mpm, maximum heat is carried by
  4. (a) work
    (b) tool
    (c) chip
    (d) equally by all of the above
    (e) none of the above,

    chip

  5. The cutting force with increase in nose radius of a single point cutting tool will
  6. (a) decrease slightly
    (b) increase slightly
    (c) increase considerably
    (d) remain unchanged
    (e) decrease considerably.

    decrease slightly

  7. The rake angle of a cutting tool
  8. (a) determines the profile of tool
    (b) prevents rubbing
    (c) decides the type of cutting action
    (d) controls the chip formation
    (e) weakens the tool.

    controls the chip formation

  9. Which of the following is the example of oblique cutting?
  10. (a) broaching
    (b) slotting
    (c) all of the above
    (d) knife turning
    (e) none of the above.

    none of the above.

  11. Side rake angle of a single point tool is the angle
  12. (a) by which the face of the tool is inclined sidewaya
    (b) by which the face of the tool is inclined towards back
    (c) between the surface of the flank immediatelv below the point and a line drawn from the point perpendicular to the base
    (d) between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of the tool
    (e) none of the above.

    by which the face of the tool is inclined sidewaya

  13. The recommended value of rake angle for machining brittle materials like brass is
  14. (a) -5°
    (b) -15°
    (c) 10
    (d) 0°
    (e) +20°.

  15. In orthogonal cutting system, the cutting edge is
  16. (a) in line with direction of tool travel
    (b) perpendicular to direction of tool travel
    (c) perpendicular to shear plane
    (d) perpendicular to direction of depth of cut
    (e) none of the above.

    perpendicular to direction of tool travel

  17. Stellite is the trade name for
  18. (a) ceramics
    (b) ferrous cast alloys
    (c) cemented carbide
    (d) products manufactured by powder metallurgy techniques
    (e) non-ferrous cast alloy.

    non-ferrous cast alloy.

  19. No cutting fluid is normally used while machining
  20. (a) mild steel
    (b) carbon steel
    (c) stainless steel
    (d) aluminium
    (e) cast iron.

    cast iron.

  21. Pick up the incorrect statement about ceram1 cutting tools
  22. (a) it is available in the form of tips
    (b) it is made by cold pressing techniques
    (c) it consists of silicon
    (d) it consists of Al,O
    (e) it cannot be reground.

    it consists of silicon

  23. Throw away tips are used because
  24. (a) initial cost is low
    (b) tool changing is easier
    (c) regrinding 1s not required
    (d) all of the above
    (e) none of the above.

    initial cost is low

  25. Back rake angle for HSS single point cutting tool to machine free cutting brass is
  26. (a) 0°
    (b) 5
    (c) 10°
    (d) 15°
    (e) – 15°.

    15°

  27. The portion of the tool on which cutting edge is formed is called
  28. (a) flank
    (b) side
    (c) face
    (d) nose
    (e) shank.

    shank.

  29. The angle between the side cutting edge and the end cutting edge is known as
  30. (a) nose angle
    (b) clearance angle
    (c) side relief angle
    (d) end cutting edge angle
    (e) end relief angle.

    nose angle

  31. Lip angle of a single point tool is of the order of
  32. (a) 10-20°
    (b) 30-45°
    (c) 50-60
    (d) 60°-80°
    (e) 80° -100°.

    60°-80°

  33. A reamer is used to correct the
  34. (a) size and position of drilled hol
    (b) size and roundness of hole
    (c) finish and position of drilled hole
    (d) finish and size of a drilled hole
    (e) finish and depth of a drilled hole.

    size and roundness of hole

  35. Ift is the thickness of underformed chip in mm, “0” is the side cutting edge angle of the single point tool and ‘s’ the feed in mm/rev, then
  36. (a) t = s sin o
    (b) s = t sin o
    (c) s = t cos o
    (d) t = s tan o
    (e) t = s cos o

    t = s sin o

  37. The binding material used in cemented carbide tools is
  38. (a) nickel
    (b) cobalt
    (c) aluminium
    (d) chromium
    (e) iron.

    cobalt

  39. Cemented carbide tools are poor in
  40. (a) compression
    (b) tension
    (c) shear
    (d) compression and tension
    (e) tension and shear

    tension and shear

  41. Cutting speed in machining with H.S.Stool will be maximum when machining
  42. (a) cast iron
    (b) mild steel
    (c) aluminium
    (d) wrought iron
    (e) tough steel.

    aluminium

  43. Back rake angle of a single point tool is the angle
  44. (a) by which the face of the tool is inclined sideways
    (b) by which the face of the tool is inclined towards back
    (c) between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base
    (d) between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of the tool
    (e) none of the above.

    by which the face of the tool is inclined towards back

  45. The cutting speed for machining cast iron with a HSS tool is of the order of
  46. (a) 30-50 m/mt
    (b) 60-90 m/mt
    (c) 100-150 m/mt
    (d) 160-250 m/mt
    (e) 250-400 m/mt.

    30-50 m/mt

  47. Which is correct order for machinability of metals ?
  48. (a) magnesium alloys, grey C.I., low carbon steel, monel metal
    (b) grey cast iron, low carbon steel, magnesium alloys, monel metal
    (c) magnesium alloys, low carbon steel, grey C.l., monel metal
    (d) magnesium alloys, grey C.I., monel metal, low carbon steel
    (e) magnesium alloys, low carbon steel, monel metal, grey C.I.

    magnesium alloys, grey C.I., low carbon steel, monel metal

  49. The angle measured in the diametral plane between the face of the tooth and a radial line passing through the tooth cutting edge of a milling cutter is known as
  50. (a) rake angle
    (b) primary clearance angle
    (c) lip angle
    (d) relief angle
    (e) axial rake.

    rake angle

  51. For particular cutting speed, the tool materials inorder of tool life are
  52. (a) H.S.S., cemented carbides, ceramics and oxides
    (b) ceramics and oxides, cemented carbides, H.S.S.
    (c) HS.S., ceramics and oxides, cemented carbides
    (d) cemented carbides, ceramics and oxides, H.S.S.
    (e) ceramics and oxides H.S.S., cemented carbides.

    ceramics and oxides, cemented carbides, H.S.S.

  53. Tool cutting forces, with increase in cutting speed
  54. (a) more or less remain constant
    (b) decrease linearly
    (c) increase linearly
    (d) none of the above.
    (e) unpredictable

    decrease linearly

  55. The cutting speed for milling cast iron with HSS milling cutter is of the order of
  56. (a) 10-16 m/mt
    (b) 5-10 m/mt
    (c) 50-100 m/mt
    (d) 20-30 m/mt
    (e) 100-250 m/mt.

    10-16 m/mt

  57. End relief angle of a single point tool is the angle
  58. (a) by which the face of the tool is inclined sideways
    (b) by which the face of the face is inclined towards back
    (c) between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base
    (d) between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of the tool
    (e) none of the above.

    between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base

  59. The strength of a cutting tool depends on following angle
  60. (a) clearance angle
    (b) lip angle
    (c) cutting angle
    (d) rake angle
    (e) all of the above.

    rake angle

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