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MCQs

Total Questions : 408 | Page 6 of 41 pages
Question 51. Which of the following statement is correct for oblique cutting system?
  1.    The cutting edge is inclined at an angle less than 90° with the normal to the velocity of the tool.
  2.    Frequently, more than one cutting edges are in action.
  3.    The chip flows on the tool face at an angle less than 90° with the normal on the cutting edge.
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 52. When the tool moves parallel to the lathe axis, the movement is termed as
  1.    cross feed
  2.    angular feed
  3.    longitudinal feed
  4.    any one of these
 Discuss Question
Answer: Option C. -> longitudinal feed
Answer: (c).longitudinal feed
Question 53. Chip breakers are used to
  1.    increase tool life
  2.    remove chips from bed
  3.    break the chips into short segments
  4.    to minimise heat generation
 Discuss Question
Answer: Option C. -> break the chips into short segments
Answer: (c).break the chips into short segments
Question 54. A grinding wheel becomes glazed (i.e. cutting edge takes a glass-like appearance) due to
  1.    wear of bond
  2.    breaking of abrasive grains
  3.    wear of abrasive grains
  4.    cracks on grinding wheel
 Discuss Question
Answer: Option C. -> wear of abrasive grains
Answer: (c).wear of abrasive grains
Question 55. In the relation VTn = C, the value of n for ceramic tools is
  1.    0.1 to 0.2
  2.    0.20 to 0.25
  3.    0.25 to 0.40
  4.    0.40 to 0.55
 Discuss Question
Answer: Option D. -> 0.40 to 0.55
Answer: (d).0.40 to 0.55
Question 56. To grind brittle materials, a coarse grained grinding wheel is used.
  1.    Agree
  2.    Disagree
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option B. -> Disagree
Answer: (b).Disagree
Question 57. Gears can be best produced on mass production by
  1.    shaping
  2.    casting
  3.    forming
  4.    hobbing
 Discuss Question
Answer: Option D. -> hobbing
Answer: (d).hobbing
Question 58. The grade of grinding wheel depends upon
  1.    hardness of the material being ground
  2.    speed of wheel and work
  3.    condition of grinding machine
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 59. Gears can be cut on a shaper.
  1.    Agree
  2.    Disagree
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Agree
Answer: (a).Agree
Question 60. A dynamometer is a device used for the measurement of
  1.    chip thickness ratio
  2.    forces during metal cutting
  3.    wear of the cutting tool
  4.    deflection of the cutting tool
 Discuss Question
Answer: Option B. -> forces during metal cutting
Answer: (b).forces during metal cutting

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