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Foundry Metallurgy MCQ Questions and Answers | Metallurgical Engineering

Enhance your knowledge of Foundry Metallurgy with this comprehensive collection of MCQ questions and answers. These MCQ questions and answers in Foundry Metallurgy are specifically designed for students of Metallurgical Engineering who are preparing for the GATE Exam. Strengthen your preparation and excel in your studies with this valuable resource. Page-5 section-1

41
Two square shaped steel plates A and B have thickness of 4 and 8 cms respectively. They are sand cast under identical conditions. Plate A takes 10 minutes to solidify. Plate B would solidify in . . . . . . . . minutes.
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Answer & Solution
Answer: Option D
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42
The operation not associated with casting is
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Answer: Option D
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43
A vertical tapered sprue of 16 cms length is, kept full during pouring. To just avoid any aspiration, the cross-sectional areas at the centre and the bottom of the sprue must be in the ratio of
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Answer: Option B
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44
In hot chamber method of die casting . . . . . . . .
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Answer: Option A
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45
The process of formation of new stable tiny particle of product phase in the parent phase during phase transformation process.
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Answer: Option B
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46
The machining allowances for medium section cast steel
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Answer: Option B
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47
A cope and drag pattern is another form of
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Answer: Option C
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48
In which of the following methods, close fitting cores are pushed in the cavities?
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Answer: Option D
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49
Ferrous alloys are usually cast by . . . . . . . .
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Answer: Option D
Solution:
Ferrous alloys, such as cast iron and steel, have very high melting points compared to non-ferrous metals.

Die casting machines, including hot and cold chamber types, are typically used for non-ferrous metals like aluminum, zinc, and magnesium, which have relatively low melting points.

Hot chamber machines are not suitable for ferrous alloys because the molten metal would corrode or damage the injection components.

Cold chamber machines are also unsuitable due to similar issues with extreme temperatures and wear.

Ferrous alloys are usually cast using sand casting, investment casting, or shell molding, which can withstand the high temperatures required.

Therefore, none of the options listed are appropriate for casting ferrous alloys.
50
Draft allowance given to patterns is for
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Answer: Option B
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