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MCQs

Total Questions : 936 | Page 10 of 94 pages
Question 91. A diamond pointed chisel is used for cutting
  1.    Flat surfaces
  2.    Grooves
  3.    Key-ways
  4.    V-shaped grooves
 Discuss Question
Answer: Option D. -> V-shaped grooves
Question 92. Spot welding is used for welding
  1.    Lap joints in plates having 0.025 mm to 1.25 mm thickness
  2.    Lap joints in plates having thickness above 3 mm
  3.    Butt joints in plates having 0.025 mm to 1.25 mm thickness
  4.    Butt joints in plates having thickness above 3 mm
 Discuss Question
Answer: Option A. -> Lap joints in plates having 0.025 mm to 1.25 mm thickness
Question 93. Thermit, used in Thermit welding, is a mixture of
  1.    Charcoal and iron oxide
  2.    Charcoal and aluminium
  3.    Iron oxide and aluminium
  4.    Charcoal, iron oxide and aluminium
 Discuss Question
Answer: Option C. -> Iron oxide and aluminium
Question 94. For smoothing and cleaning out depressions in the mould, a ________ is used.
  1.    Slick
  2.    Lifter
  3.    Swab
  4.    Gagger
 Discuss Question
Answer: Option B. -> Lifter
Question 95. In order to produce uniform packing of sand in the moulds, a _________ is used.
  1.    Sand slinger
  2.    Squeezing machine
  3.    Jolt machine
  4.    Stripper plate machine
 Discuss Question
Answer: Option A. -> Sand slinger
Question 96. In order to ram the sand harder at the back of the mould and softer on the pattern face, a ________ is used.
  1.    Sand slinger
  2.    Squeezing machine
  3.    Jolt machine
  4.    Stripper plate machine
 Discuss Question
Answer: Option B. -> Squeezing machine
Question 97. When a hole or cavity to be cored is not in line with the parting surface, then a ________ is used.
  1.    Horizontal core
  2.    Vertical core
  3.    Drop core
  4.    Balanced core
 Discuss Question
Answer: Option C. -> Drop core
Question 98. In order to deliver molten metal from pouring basin to gate, a ________ is used.
  1.    Riser
  2.    Sprue
  3.    Core
  4.    None of these
 Discuss Question
Answer: Option B. -> Sprue
Question 99. In welding magnesium with TIG arc welding, direct current with ________ is used.
  1.    Straight polarity
  2.    Reversed polarity
  3.    Both (A) and (B)
  4.    None of these
 Discuss Question
Answer: Option B. -> Reversed polarity
Question 100. A rip saw
  1.    Is a two man saw
  2.    Is used for cutting along the grains of wood
  3.    Has a narrow blade with two wooden handles
  4.    All of the above
 Discuss Question
Answer: Option B. -> Is used for cutting along the grains of wood

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