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A casting defect which results in general enlargement of a casting is known as?

LohaHridoy
  1. Shift
  2. Sand wash
  3. Swell
  4. Scab

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1 Answers

AhmedNazir

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Answer: Option 3

A swell occurs when the mold wall gives way across a whole face, and is caused by an improperly rammed mold. Burn-on occurs when metallic oxides interact with impurities in silica sands. The result is sand particles embedded in the surface of the finished casting.

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When the molten metal is fed in the cavity of a metallic mould by gravity, the method of casting is known as?

Answer: Option 3 When the molten metal is fed in the cavity of a metallic mould by gravity, the method of casting is known as Permanent mould casting method

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What describes a process of continuously measuring results and comparing those results to optimal performance so that actual performance may be improved?

Answer: Option 3 Benchmarking describes a process of continuously measuring results and comparing those results to optimal performance so that actual performance may be improved.

1 Answers 1 views
Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area ; in the casting)?

Answer: Option 4 Let'

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The defect which takes place due to imperfect packing of atoms during crystallization is known as?

Answer: Option 3 Point defects are where an atom is missing or is in an irregular place in the lattice structure. Point defects include self interstitial atoms, interstitial impurity atoms, substitutional...

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Two streams of liquid metal which are not hot enough to fuse properly result into a casting defect known as?

Answer: Option 1 Let'

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Misrun is a casting defect which occurs due to?

Answer: Option 2 Let'

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A casting defect which occurs due to improper venting of sand is known as?

Answer: Option 2 A casting defect which occurs due to improper venting of sand is known as Blow holes

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A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as?

Answer: Option 2 A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as Sand wash

1 Answers 1 views
Sand wash is a casting defect which?

Answer: Option 3 Sand wash is a casting defect which Occurs near the ingates as rough lumps on the surface of a casting

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Shift is a casting defect which?

Answer: Option 1 shift refers to a defect caused by a sidewise displacement of the mold cope relative to the drag, the result of which is a step in the...

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