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MCQs

Total Questions : 936 | Page 92 of 94 pages
Question 911. Structural sections such as rails, angles, I-beams are made by
  1.    Hot extrusion
  2.    Hot rolling
  3.    Hot drawing
  4.    Hot piercing
 Discuss Question
Answer: Option B. -> Hot rolling
Question 912. The electron beam welding can be carried out in
  1.    A pressurized inert gas chamber
  2.    Vacuum
  3.    A shielded gas environment
  4.    Open air
 Discuss Question
Answer: Option B. -> Vacuum
Question 913. A hacksaw blade cuts on the
  1.    Cutting depends upon the direction of force
  2.    Return stroke
  3.    Forward stroke
  4.    Both forward and return strokes
 Discuss Question
Answer: Option C. -> Forward stroke
Question 914. In forehand welding, the angle between the welding torch and the work is ________ as compared to backhand welding.
  1.    Less
  2.    None of these
  3.    More
  4.    Same
 Discuss Question
Answer: Option C. -> More
Question 915. The operation of bending a sheet of metal along a curved axis, is known as
  1.    Forming
  2.    Plunging
  3.    Slitting
  4.    Notching
 Discuss Question
Answer: Option A. -> Forming
Question 916. In average work, the tolerance produced by investment casting method is
  1.    +1 mm
  2.    ±0.05 mm
  3.    +0.2 mm
  4.    +05 mm
 Discuss Question
Answer: Option B. -> ±0.05 mm
Question 917. V-block is used to
  1.    None of these
  2.    Locate centres of round rods
  3.    Check the trueness of flat surfaces
  4.    Check the surface roughness
 Discuss Question
Answer: Option A. -> None of these
Question 918. In blanking operation, the clearance is provided on
  1.    Die
  2.    Either on punch or die depending upon designer's choice
  3.    Half on the punch and half on the die
  4.    Punch
 Discuss Question
Answer: Option D. -> Punch
Question 919. In sheet metal work, he cutting force on the tool can be reduced by
  1.    Providing shear on tool
  2.    Increasing the hardness of tool
  3.    Grinding the cutting edges sharp
  4.    Increasing the hardness of die
 Discuss Question
Answer: Option C. -> Grinding the cutting edges sharp
Question 920. The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is
  1.    Anywhere between 0.1 to 1 percent
  2.    More than 0.3 percent
  3.    Less than 0.3 percent
  4.    Less than 0.1 percent
 Discuss Question
Answer: Option B. -> More than 0.3 percent

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