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Total Questions : 1798 | Page 4 of 180 pages
Question 31. The lathe spindles are usually made hollow and provided with
  1.    Internal taper
  2.    External taper
  3.    Internal and external taper
  4.    No taper
 Discuss Question
Answer: Option A. -> Internal taper
Question 32. In transverse grinding
  1.    The work is reciprocated as the wheel feeds to produce cylinders longer than the width of wheel face
  2.    The work rotates in a fixed position as the wheel feeds to produce cylinders equal to or shorter than the width of wheel face
  3.    The work is reciprocated as the wheel feeds to produce cylinders shorter than the width of wheel face
  4.    The work rotates in a fixed position as the wheel feeds to produce cylinders longer than the width of wheel face
 Discuss Question
Answer: Option A. -> The work is reciprocated as the wheel feeds to produce cylinders longer than the width of wheel face
Question 33. The top and sides of the table of a shaper usually have
  1.    L-type slots
  2.    T-type slots
  3.    I-type slots
  4.    Any one of these
 Discuss Question
Answer: Option B. -> T-type slots
Question 34. When the shear angle is small
  1.    Path of shear is short and chip is thin
  2.    Path of shear is large and chip is thick
  3.    Path of shear is short and chip is thick
  4.    Path of shear is large and chip is thin
 Discuss Question
Answer: Option B. -> Path of shear is large and chip is thick
Question 35. In metal cutting operations, the shear angle is the angle made by the shear plane with the
  1.    Direction of the tool axis
  2.    Direction of tool travel
  3.    Perpendicular to the direction of the tool axis
  4.    Central plane of the workpiece
 Discuss Question
Answer: Option B. -> Direction of tool travel
Question 36. When 3-2-1 principle is used to support and locate a three dimensional work-piece during machining, the number of degrees of freedom that are restricted is
  1.    7
  2.    8
  3.    9
  4.    10
 Discuss Question
Answer: Option C. -> 9
Question 37. A jig is defined as a device which
  1.    Holds and locates a workpiece and guides and controls one or more cutting tools
  2.    Holds and locates a workpiece during an inspection or for a manufacturing operation
  3.    Is used to check the accuracy of workpiece
  4.    All of the above
 Discuss Question
Answer: Option A. -> Holds and locates a workpiece and guides and controls one or more cutting tools
Question 38. A fixture is defined as a device which
  1.    Holds and locates a workpiece and guides and controls one or more cutting tools
  2.    Holds and locates a workpiece during an inspection or for a manufacturing operation
  3.    Is used to check the accuracy of workpiece
  4.    All of the above
 Discuss Question
Answer: Option B. -> Holds and locates a workpiece during an inspection or for a manufacturing operation
Question 39. Which of the following statement is wrong about ultrasonic machining?
  1.    It is best suited for machining hard and brittle materials.
  2.    It cuts materials at very slow speeds
  3.    It removes large amount of material
  4.    It produces good surface finish
 Discuss Question
Answer: Option C. -> It removes large amount of material
Question 40. Gears can be best produced on mass production by
  1.    Shaping
  2.    Casting
  3.    Forming
  4.    Hobbing
 Discuss Question
Answer: Option D. -> Hobbing

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