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Chapter 4 CASTING DEFECTS MCQs

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1. . Which of the following defect is not a gas defect?





2. . Which gas defect is caused by hydrogen in molten metal?





3. . Cuts, washes, swell, drop etc. are the examples of which of the following casting defects?





4. . When the molten metal leaks out of mold which defect occurs?





5. . Which of the following defects is not an example of type “pouring material defects”?





6. . The lower fluidity of molten material causes _________





7. . Defects caused by the chilling of the casting are known as?





8. . During melting process flux is added to react with impurities to form?





9. . Which defect is caused due to the conversion of moisture to steam because of the heat of molten metal?





10. . Defect which occurs due to the solidification of casting is known as?





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