Engineering Materials MCQ with Answers

Engineering Materials MCQ with Answers

46) White cast iron has

Answer is:

all of these

47) Which of the following impurity in cast iron promotes graphite nodule formation and increases the fluidity of the molten metal?

Answer is:

Phosphorus

Explanation:

Phosphorus is the impurity in cast iron which promotes graphite nodule formation and increases the fluidity of the molten metal.

48) Which of the following statement is correct?

Answer is:

The chilled cast iron has no graphite.

49) Which of the following display properties similar to that of steel?

Answer is:

both A and B

Explanation:

Blackheart cast iron and Whiteheart cast iron has similar properties to steel.

50) For the pipe fitting like elbow, tee, union etc., which of the following is preferred?

Answer is:

Malleable iron

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