Gravity Die Casting MCQ

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

• Which of the following processes is most suitable for the casting of connecting rods and pistons of the automobile?
  ক

  Precision investment casting

  খ

  Gravity die casting

  গ

  Shell moulding

  ঘ

  Centrifugal casting
• All kind of metals can be cast easily in the gravity die casting.
  ক

  True

  খ

  False
• Better surface finish with the close dimensional tolerances of the casting can be obtained in gravity die casting.
  ক

  True

  খ

  False
• If the heavy casting is produced, then which of the following can be used to maintain the progressive solidification?
  ক

  Sprue

  খ

  Riser

  গ

  Chills

  ঘ

  Pouring basin
• Water cooling is always preferred than the air cooling for the extraction of heat from the castings through the mould.
  ক

  True

  খ

  False
• Air cooling is sufficient to maintain temperature for the large and thick-walled castings in gravity die casting.
  ক

  True

  খ

  False
• Continuous extraction of heat is necessary to ensure higher mould life and better casting cycle times.
  ক

  True

  খ

  False
• The die life is less for higher melting temperature alloys in gravity die casting.
  ক

  True

  খ

  False
• Which of the following materials is mostly used as a die material in gravity die casting?
  ক

  Grey cast iron

  খ

  Lead

  গ

  Magnesium

  ঘ

  Aluminium
• Which of the following considerations is independent for the selection of moulding material?
  ক

  Size of the casting

  খ

  Frequency of casting cycle

  গ

  Pouring temperature

  ঘ

  Fluidity of pouring melt
• Gravity die casting is best suited for highly viscous molten metal and for producing the complex shape of castings.
  ক

  True

  খ

  False
• Which of the following show can the approximate number of castings be produced by gravity die casting?
  ক

  0-50

  খ

  50-100

  গ

  100-250,000

  ঘ

  250,000-500,000
• Gravity die casting makes use of a permanent mould.
  ক

  True

  খ

  False
• Molten metal is poured into the mould due to the effect of gravity with _______ external pressure in gravity die casting.
  ক

  High

  খ

  Low

  গ

  Medium

  ঘ

  No
• A permanent mould is made up of two halves.
  ক

  True

  খ

  False
• The thickness of the permanent mould is _______
  ক

  High

  খ

  Low

  গ

  Negligible

  ঘ

  Moderate
• In gravity die casting, __________ the thickness of the mold walls, greater the amount of heat removal.
  ক

  Lesser

  খ

  Equal

  গ

  Greater

  ঘ

  Negligible
• For faster cooling, fins are provided __________ the permanent mould.
  ক

  Inside

  খ

  Outside

  গ

  At the surface

  ঘ

  Near the end
• The mold halves are clamped by ________ in gravity die casting.
  ক

  Lathes

  খ

  Pneumatic

  গ

  Toggles

  ঘ

  Lathes, Pneumatic and Toggles
• A chill is used to promote directional solidification in gravity die casting.
  ক

  True

  খ

  False
• Cores in permanent moulds used in gravity die casting are made up of ___________
  ক

  Metals

  খ

  Metal and Non-metals

  গ

  Metals and sand

  ঘ

  Only sand
• Blowing of air is required in water passages is gravity die casting.
  ক

  True

  খ

  False