Metal Casting Defects MCQ

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

• Scabs are casting defects which?
  ক

  result in a mismatch of the top and bottom parts of a casting

  খ

  result near the ingates as rough lumps on the surface of a casting

  গ

  occur as rough and irregular projections on the surface of the casting

  ঘ

  occur as smooth and regular projections on the surface of the casting
• A casting defect which occurs due to improper venting of sand is known as?
  ক

  Cold shuts

  খ

  Blow holes

  গ

  Shift

  ঘ

  Hot tear
• A casting defect which occurs near the ingates as rough lumps on the surface of a casting is?
  ক

  Shift

  খ

  Sand wash

  গ

  Swell

  ঘ

  Hot tear
• The defect caused when two streams do not fuse together (while melting), thus forming discontinuity in casting is termed as?
  ক

  cold shut

  খ

  misrun

  গ

  hot tear

  ঘ

  porosity
• The defect caused when the melt is unable to fill the mold cavity completely and thus leaves cavities is termed as?
  ক

  cold shut

  খ

  misrun

  গ

  hot tear

  ঘ

  porosity
• In casting, which of the following are not material defects?
  ক

  cut and washes

  খ

  metal penetration

  গ

  fusion

  ঘ

  hot tears
• The defects caused by liquid shrinkage during the solidification of the casting?
  ক

  gas defects

  খ

  shrinkage cavities

  গ

  molding material defects

  ঘ

  hot tears
• The causes of gas defects are ___________
  ক

  metal contains gas

  খ

  mold is too hot

  গ

  poor mold burnout

  ঘ

  all of the mentioned
• The defects caused by trapping a gas in molten metal or by mold gases while pouring the melt is known as?
  ক

  Gas defects

  খ

  Shrinkage cavities

  গ

  Molding material defects

  ঘ

  Pouring defects
• The major defects of casting are __________
  ক

  gas defects

  খ

  shrinkage cavities

  গ

  molding material defects

  ঘ

  all of the mentioned