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MCQs

Total Questions : 936 | Page 90 of 94 pages
Question 891. For smoothing and cleaning out depressions in the mould, a ________ is used.
  1.    Gagger
  2.    Lifter
  3.    Swab
  4.    Slick
 Discuss Question
Answer: Option B. -> Lifter
Question 892. 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.    Stripper plate machine
  3.    Squeezing machine
  4.    Jolt machine
 Discuss Question
Answer: Option C. -> Squeezing machine
Question 893. In order to produce uniform packing of sand in the moulds, a _________ is used.
  1.    Stripper plate machine
  2.    Jolt machine
  3.    Squeezing machine
  4.    Sand slinger
 Discuss Question
Answer: Option D. -> Sand slinger
Question 894. When a hole or cavity to be cored is not in line with the parting surface, then a ________ is used.
  1.    Balanced core
  2.    Vertical core
  3.    Horizontal core
  4.    Drop core
 Discuss Question
Answer: Option D. -> Drop core
Question 895. In order to deliver molten metal from pouring basin to gate, a ________ is used.
  1.    Riser
  2.    Core
  3.    Sprue
  4.    None of these
 Discuss Question
Answer: Option C. -> Sprue
Question 896. A rip saw
  1.    Has a narrow blade with two wooden handles
  2.    All of these
  3.    Is a two man saw
  4.    Is used for cutting along the grains of wood
 Discuss Question
Answer: Option D. -> Is used for cutting along the grains of wood
Question 897. For welding plates of thickness more than 12.5 mm, its edges
  1.    Should have a double-V or U-groove on one side
  2.    Should have a double-V or U-groove on both sides
  3.    Should be bevelled to a single-V or U-groove
  4.    Do not require bevelling
 Discuss Question
Answer: Option B. -> Should have a double-V or U-groove on both sides
Question 898. The diaphragm moulding machine is used to
  1.    Ram the sand harder at the back of the mould and softer on the pattern face
  2.    Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
  3.    Give uniform sand hardness throughout the mould
  4.    Produce uniform packing of sand in the mould
 Discuss Question
Answer: Option C. -> Give uniform sand hardness throughout the mould
Question 899. A jolt machine is used to
  1.    Ram the sand harder at the back of the mould and softer on the pattern face
  2.    Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
  3.    Produce uniform packing of sand in the mould
  4.    Produce uniform sand hardness throughout the mould
 Discuss Question
Answer: Option B. -> Ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
Question 900. In welding magnesium with TIG arc welding, direct current with ________ is used.
  1.    Both (A) and (B)
  2.    None of these
  3.    Reversed polarity
  4.    Straight polarity
 Discuss Question
Answer: Option C. -> Reversed polarity

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