Metal-casting Questions Set 20:
The approximate value of the thickness of the shell in shell molding, although it depends on curing time, is:
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Where is the stack zone located in a cupola furnace?
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Directional solidification can be ensured by
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During which stroke of a file's motion does it remove the most metal?
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In which casting method is the molten metal poured and allowed to solidify while the mold is revolving?
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The contraction allowance provided on the pattern and core boxes compensates for which type of contraction?
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Cast iron blocks measuring 100 x 50 x 50 mm are to be cast in a sand mold. The shrinkage allowance for pattern making is 1.2%. What is the ratio of the volume of the casting to that of the pattern?
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The volume flow rate of metal into a mold is 0.01 m3/min. The top of the sprue has a diameter of 20 mm, and its length is 200 mm. What diameter should be specified at the bottom of the sprue to prevent aspiration?
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Given the flow rate of liquid metal into the down sprue of a mold is 0.5 liters/sec, the area of the cross-section at the top of the sprue is 1000 mm2, and the sprue height is 100 mm, find the area at the base of the sprue such that aspiration of the molten metal does not take place.
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Which of the following is a true statement about Sweep Pattern?
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