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MCQs

Total Questions : 936 | Page 9 of 94 pages
Question 81. Which one of the following material will require the largest size of riser for the same size of casting?
  1.    Aluminium
  2.    Cast iron
  3.    Steel
  4.    Copper
 Discuss Question
Answer: Option C. -> Steel
Question 82. A hacksaw blade is specified by its
  1.    Length
  2.    Material
  3.    Width
  4.    Number of teeth
 Discuss Question
Answer: Option A. -> Length
Question 83. The welding process used in joining mild steel shanks to high speed drills, is
  1.    Spot welding
  2.    Seam welding
  3.    Flash butt welding
  4.    Upset butt welding
 Discuss Question
Answer: Option C. -> Flash butt welding
Question 84. For cutting brass, the hacksaw blade should have ________ teeth per 25 mm.
  1.    14
  2.    24
  3.    32
  4.    40
 Discuss Question
Answer: Option A. -> 14
Question 85. In arc welding, the electric arc is produced between the work and the electrode by
  1.    Voltage
  2.    Flow of current
  3.    Contact resistance
  4.    All of these
 Discuss Question
Answer: Option C. -> Contact resistance
Question 86. A file removes the metal during
  1.    Forward stroke
  2.    Return stroke
  3.    Both forward and return strokes
  4.    None of these
 Discuss Question
Answer: Option A. -> Forward stroke
Question 87. Lancing is the operation of
  1.    Cutting a sheet of metal in a straight line along the length
  2.    Removal of metal to the desired shape from the edge of a plate
  3.    Cutting a sheet of metal through part of its length and then bending the cut portion
  4.    Bending a sheet of metal along a curved axis
 Discuss Question
Answer: Option C. -> Cutting a sheet of metal through part of its length and then bending the cut portion
Question 88. Notching is the operation of
  1.    Cutting a sheet of metal in a straight line along the length
  2.    Removal of metal to the desired shape from the edge of a plate
  3.    Cutting a sheet of metal through part of its length and then bending the cut portion
  4.    Bending a sheet of metal along a curved axis
 Discuss Question
Answer: Option B. -> Removal of metal to the desired shape from the edge of a plate
Question 89. When the dimension is expressed as $$20_{ - 0.025}^{ + 0.035}$$, then the tolerance is
  1.    0.035 mm
  2.    0.025 mm
  3.    0.01 mm
  4.    0.06 mm
 Discuss Question
Answer: Option D. -> 0.06 mm
Question 90. In forehand welding, the weld is made
  1.    From left to right
  2.    From right to left
  3.    First from left to right and then from right to left
  4.    Either from left to right or from right to left
 Discuss Question
Answer: Option B. -> From right to left

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