Casting Cleaning MCQ

Test your knowledge with important Casting Cleaning MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Casting Cleaning MCQs at Bissoy

• Tumbling method, for cleaning of sand and unwanted fins from the castings, can be used for thin castings with fragile or overhung segments.
  ক

  True

  খ

  False
• Which of the following methods is best for cleaning of sand particles sticking to the casting surface?
  ক

  Chipping

  খ

  Sand blasting

  গ

  Grinding

  ঘ

  Hammering
• Which of the following techniques is used for smoothening of the rough cut gate edges on the castings?
  ক

  Hack sawing

  খ

  Flame cutting

  গ

  Sand blasting

  ঘ

  Pedestal or swing frame grinding
• A reduced metal section at the casting joint makes easy removal of gates and risers from the castings.
  ক

  True

  খ

  False
• Which of the following methods is more convenient for the removal of very large size gates and risers from the steel castings?
  ক

  Hammering

  খ

  Chipping

  গ

  Flame or arc cutting

  ঘ

  Hack sawing
• Flame or arc cutting method is used for the removal of dry sand cores from the castings.
  ক

  True

  খ

  False
• Which of the following processes is known as fettling?
  ক

  Cleaning of castings

  খ

  Pouring of melt into mould

  গ

  Releasing of gases from the melt

  ঘ

  Inclusion of slag in the castings
• For ferrous alloys, the breaking of mould should be done at a temperature_____
  ক

  780 ⁰C

  খ

  850 ⁰C

  গ

  above 700 ⁰C

  ঘ

  below 700 ⁰C
• Faster and uneven cooling of hot casting affects the castings badly or may cause several defects in the castings.
  ক

  True

  খ

  False
• Which of the following types of mould will have the longest period of cooling time for the same castings?
  ক

  Green sand mould of simple shape and size

  খ

  Dry sand mould of simple shape and size

  গ

  Dry sand mould of complex shape and size

  ঘ

  Green sand mould of complex shape and size
• Pressure change of a melt is responsible for the cooling rate of the castings in the mould.
  ক

  True

  খ

  False
• Breaking of the sand mould is done after sufficient cooling of castings, to have_____
  ক

  proper surface finish of castings

  খ

  no any distortion to castings

  গ

  high casting yield

  ঘ

  less casting yield