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MCQs

Total Questions : 936 | Page 91 of 94 pages
Question 901. The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called
  1.    Punching
  2.    Shearing
  3.    Piercing
  4.    Blanking
 Discuss Question
Answer: Option C. -> Piercing
Question 902. The oxygen cylinder is usually painted with
  1.    Maroon colour
  2.    Yellow colour
  3.    White colour
  4.    Black colour
 Discuss Question
Answer: Option D. -> Black colour
Question 903. In a centrifugal casting method
  1.    Core is made of nonferrous metal
  2.    Core is made of sand
  3.    Core is made of ferrous metal
  4.    No core is used
 Discuss Question
Answer: Option D. -> No core is used
Question 904. The temperature of the inner luminous cone of neutral flame is about
  1.    1250°C
  2.    2100°C
  3.    1000°C
  4.    3200°C
 Discuss Question
Answer: Option D. -> 3200°C
Question 905. The acetylene cylinder is usually painted with
  1.    White colour
  2.    Yellow colour
  3.    Maroon colour
  4.    Black colour
 Discuss Question
Answer: Option C. -> Maroon colour
Question 906. A moving mandrel is used in
  1.    Forging
  2.    Metal cutting
  3.    Wire drawing
  4.    Tube drawing
 Discuss Question
Answer: Option D. -> Tube drawing
Question 907. The electrode tip diameter (d) in spot welding should be equal to (where t = Thickness of plate to be welded)
  1.    3 t
  2.    √t
  3.    1.5 t
  4.    6 t
 Discuss Question
Answer: Option B. -> √t
Question 908. The recrystallisation temperature of steel is
  1.    600°C
  2.    800°C
  3.    None of these
  4.    400°C
 Discuss Question
Answer: Option B. -> 800°C
Question 909. The parts of circular cross-section which are symmetrical about the axis of rotation are made by
  1.    Hot spinning
  2.    Hot extrusion
  3.    Hot drawing
  4.    Hot forging
 Discuss Question
Answer: Option A. -> Hot spinning
Question 910. The teeth of hacksaw blade are bent
  1.    Alternately towards right and left and every third or fourth left straight
  2.    May be bent in any direction
  3.    Towards right
  4.    Towards left
 Discuss Question
Answer: Option A. -> Alternately towards right and left and every third or fourth left straight

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