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

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objective-questions
Engineering
Mechanical
ME Set-1
Engineering Materials
49

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

A) Blackheart cast iron

B) White heart cast iron

both A and B

none of these

Answer is:

both A and B

Explanation:

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

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

Pig iron

Malleable iron

Spheroidal graphite cast iron

High carbon steel

Answer is:

Malleable iron

Explanation:

51) Wrought iron

is a ductile material

can be easily forged or welded

cannot stand sudden and excessive shocks

all of these

Answer is:

all of these

Explanation:

Wrought iron is an iron alloy with very low carbon content with respect to cast iron. It is soft, ductile, magnetic, and has high elasticity and tensile strength. It can be heated and reheated and worked into various shapes.

52) The brown smoke during the operation of a Bessemer converter indicates that the

air is burning out silicon and manganese

silicon and manganese has burnt and carbon has started oxidizing

the converter must be tilted to remove the contents of the converter

the brown smoke does not occur during the operation of a Bessemer converter

Answer is:

air is burning out silicon and manganese

Explanation:

53) The red flame during the operation of a Bessemer converter indicates that the

air is burning out silicon and manganese

silicon and manganese has burnt and carbon has started oxidizing

the converter must be tilted to remove the contents of the converter

red flame does not occur during the operation of bessemer converter

Answer is:

red flame does not occur during the operation of bessemer converter

Explanation:

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

both A and B

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Related Engineering Materials MCQ with Answers

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

Malleable iron

51) Wrought iron

all of these

52) The brown smoke during the operation of a Bessemer converter indicates that the

air is burning out silicon and manganese

53) The red flame during the operation of a Bessemer converter indicates that the

red flame does not occur during the operation of bessemer converter

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