Metal-casting Questions Set 6:
For which of the following metals is the shrinkage allowance maximum?
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What are used to mold the sand mixture into the shape of the casting and may be made of wood, plastic, or metal?
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Light impurities in the molten metal are prevented from reaching the mould cavity by providing
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Which of the following factors is independent of the direction of crystal growth in an alloy?
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For a given volume of a riser, if the solidification time of the molten metal in the riser needs to be quadrupled, the surface area of the riser should be made
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The defect caused when two streams of molten metal do not fuse together while filling the mold cavity, thus forming a discontinuity in the casting, is termed as?
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What is the purpose of using a gated pattern in casting?
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Solidification of castings with complex details is not uniform, but it is accompanied by warping distortions. This factor is compensated in the pattern as:
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How does the permeability of a material change with increasing moisture content?
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Which of the following statements is not true about the Non-Pressurised Gating System?
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