Foundry MCQ

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

• Match plate pattern is made using wood.
  ক

  True

  খ

  False
• During the preparation of cope using the follow board pattern, the follow board is not necessary.
  ক

  True

  খ

  False
• ________ is used to make the large castings of axi-symmetrical shapes.
  ক

  Loose piece pattern

  খ

  Skeleton pattern

  গ

  Sweep pattern

  ঘ

  Match plate pattern
• Structurally weak castings are made using _____________
  ক

  Loose piece pattern

  খ

  Sweep Pattern

  গ

  Skeleton Pattern

  ঘ

  Follow board pattern
• Manual or Machine cutting of runners and gates is eliminated in ______________
  ক

  Split Pattern

  খ

  Single piece pattern

  গ

  Gated Pattern

  ঘ

  Match Plate Pattern
• Cope and drag pattern uses separate wooden plates and alignment pins.
  ক

  True

  খ

  False
• Dowel pins, Jigs and fixtures are all used to join which of the following patterns.
  ক

  Single piece

  খ

  Match plate

  গ

  Two piece

  ঘ

  Gated Pattern
• Two piece patterns are used for manufacturing of the intricate castings.
  ক

  True

  খ

  False
• The ________ pattern could have the entire assembly of runner and gates integrated in it.
  ক

  Single piece

  খ

  Match plate

  গ

  Two piece

  ঘ

  Gated Pattern
• ____________ pattern could fit entirely in the cope or in the drag.
  ক

  Single piece

  খ

  Match plate

  গ

  Two piece

  ঘ

  Gated Pattern
• Skin dried mould is preferable for large moulds over the dray sand moulds.
  ক

  True

  খ

  False
• Dry sand moulds have high strength than the green sand moulds to form large castings.
  ক

  True

  খ

  False
• The strength of the dry sand mould depends on ________
  ক

  Sand Quality

  খ

  Sand grain

  গ

  Binders

  ঘ

  Additives
• Uncontrolled permeability in the green sand mould leads to ___________
  ক

  Blow Holes

  খ

  Chills

  গ

  Shrinkage

  ঘ

  Tearing
• The permeability _________ with the grain size.
  ক

  Remains same

  খ

  Increases

  গ

  Decreases

  ঘ

  Depends on the sand
• All the sand moulds should have a great venting capacity.
  ক

  True

  খ

  False
• Hot tearing of the casting is least observed in _______________
  ক

  Green sand moulds

  খ

  Dry sand moulds

  গ

  Skin dried sand moulds

  ঘ

  Size of the grain
• Green sand mould acquires the highest floor space.
  ক

  True

  খ

  False
• The rate at which the casting is removed from the green sand mould is __________
  ক

  Immediately

  খ

  Min 2-3 hours later

  গ

  More than 6 hours

  ঘ

  Around 2 days
• In the molding sands, which of the following are the major properties?
  ক

  Permeability

  খ

  Sand Grains

  গ

  Size of the grains

  ঘ

  Permeability, sand grains and size of the grains
• Molasses enhances the bench life of the sand and is the best sand conditioner.
  ক

  True

  খ

  False
• The iron oxide reduced the hot strength.
  ক

  True

  খ

  False
• The mould hardness measuring test is similar to _________
  ক

  Brinells Hardness test

  খ

  Vikers hardness test

  গ

  Rockwell Hardness test

  ঘ

  Sand Grain analysis
• The strength of the sand ____________ on drying.
  ক

  Remains same

  খ

  Increases

  গ

  Decreases

  ঘ

  Depends on the sand
• Green shear strength is more than the Green compression strength.
  ক

  True

  খ

  False
• Permeability is greatly dependent upon ________________
  ক

  Ramming of sand

  খ

  Sand Particle size

  গ

  Sand grade

  ঘ

  Moisture content
• Measurement of strength of molding sands can be carried out on a Universal testing machine.
  ক

  True

  খ

  False
• The rate of flow of air passing through a standard specimen under a standard pressure is termed as _____________
  ক

  Green Strength

  খ

  Dry Strength

  গ

  Mould Hardness Number

  ঘ

  Permeability number
• In the following equation, P stands for _________
  ক

  Permeability number

  খ

  Pressure

  গ

  Partial Pressure

  ঘ

  Partial Fraction
• Sodium bentonite and Calcium bentonite has the same binding properties.
  ক

  True

  খ

  False