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MCQs

Total Questions : 408 | Page 7 of 41 pages
Question 61. The type of reamer used for reaming soft aluminium or copper, is
  1.    straight fluted reamer
  2.    left hand spiral fluted reamer
  3.    right hand spiral fluted reamer
  4.    any one of these
 Discuss Question
Answer: Option B. -> left hand spiral fluted reamer
Answer: (b).left hand spiral fluted reamer
Question 62. The tool material, for faster machining, should have
  1.    wear resistance
  2.    red hardness
  3.    toughness
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 63. The helix angle of a drill is more than 30° for drilling aluminium.
  1.    Agree
  2.    Disagree
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Agree
Answer: (a).Agree
Question 64. The tap used to cut threads in a blind hole is
  1.    taper tap
  2.    second tap
  3.    bottoming tap
  4.    any one of these
 Discuss Question
Answer: Option C. -> bottoming tap
Answer: (c).bottoming tap
Question 65. In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent of 0.25, if the cutting speed is halved, then tool life will become
  1.    half
  2.    two times
  3.    eight times
  4.    sixteen times
 Discuss Question
Answer: Option D. -> sixteen times
Answer: (d).sixteen times
Question 66. 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
Answer: (a).holds and locates a workpiece and guides and controls one or more cutting tools
Question 67. The plain milling machine is more rigid and heavier in construction than a universal milling machine of the same size.
  1.    Correct
  2.    Incorrect
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Correct
Answer: (a).Correct
Question 68. The swing diameter over carriage is always less than the swing diameter over bed.
  1.    Yes
  2.    No
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Yes
Answer: (a).Yes
Question 69. Jigs are used
  1.    for holding and guiding the tool in drilling, reaming or tapping operations
  2.    for holding the work in milling, grinding, planing or turning operations
  3.    to check the accuracy of workpiece
  4.    none of the above
 Discuss Question
Answer: Option A. -> for holding and guiding the tool in drilling, reaming or tapping operations
Answer: (a).for holding and guiding the tool in drilling, reaming or tapping operations
Question 70. A mandrel is used to hold
  1.    an eccentric work
  2.    a heavy work
  3.    a thin work
  4.    none of these
 Discuss Question
Answer: Option D. -> none of these
Answer: (d).none of these

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