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MCQs

Total Questions : 936 | Page 8 of 94 pages
Question 71. A ring gauge is used to
  1.    Check the diameter of shafts or studs
  2.    Test the accuracy of holes
  3.    Check the clearance between two mating surfaces
  4.    All of the above
 Discuss Question
Answer: Option A. -> Check the diameter of shafts or studs
Question 72. The fullers are used
  1.    For finishing flat surfaces
  2.    For necking down a piece of work
  3.    For punching a hole
  4.    To finish the punched hole
 Discuss Question
Answer: Option B. -> For necking down a piece of work
Question 73. Lap joints are employed on plates having thickness
  1.    Less than 3 mm
  2.    5 to 10 mm
  3.    12.5 mm
  4.    Above 25 mm
 Discuss Question
Answer: Option A. -> Less than 3 mm
Question 74. Thermit welding is often used in
  1.    Replacing broken gear teeth
  2.    Repairing broken shears
  3.    Joining rails, truck frames and locomotive frames etc.
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 75. Thread rolling is restricted to
  1.    Ferrous materials
  2.    Ductile materials
  3.    Hard materials
  4.    None of these
 Discuss Question
Answer: Option B. -> Ductile materials
Question 76. When a pattern is made in three parts, the ________ is known as a drag.
  1.    Bottom part
  2.    Middle part
  3.    Top part
  4.    None of these
 Discuss Question
Answer: Option A. -> Bottom part
Question 77. Which of the following material can be used for making patterns?
  1.    Aluminium
  2.    Wax
  3.    Lead
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 78. The purpose of a riser is to
  1.    Deliver molten metal into the mould cavity
  2.    Act as a reservoir for the molten metal
  3.    Feed the molten metal to the casting in order to compensate for the shrinkage
  4.    Deliver the molten metal from pouring basin to gate
 Discuss Question
Answer: Option C. -> Feed the molten metal to the casting in order to compensate for the shrinkage
Question 79. Which of the following welding method uses a pool of molten metal?
  1.    Carbon arc welding
  2.    Submerged arc welding
  3.    TIG arc welding
  4.    MIG arc welding
 Discuss Question
Answer: Option B. -> Submerged arc welding
Question 80. A casting defect which occurs due to improper venting of sand is known as
  1.    Cold shuts
  2.    Blow holes
  3.    Shift
  4.    Swell
 Discuss Question
Answer: Option B. -> Blow holes

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