Phase Diagram MCQs | Part - VII | Material Science MCQs

This set of Engineering Materials Science "Multiple Choice Questions & Answers" are based on "PHASE DIAGRAM" 

 

PHASE DIAGRAM

Multiple Choice Questions (MCQ)

Hello reader, here you can find some MCQ with answers. But before reading this I will suggest you take a practice test on these questions given below. so you can understand your strength on this topic.

Click here to go Practice Test section on this topic namely Phase Diagram.

But if you want to read this topic first and then practice it then read it carefully.  The Multiple Choice Questions (MCQ) based on the Phase Diagram are given below:

PART - VII

1) The Eutectoid temperature in Fe – C diagram is

A. 727°C

B. 1147°C

C. 1394°C

D. 1493°C

Correct Answer is "A"

The Eutectoid temperature in Fe – C diagram is 727°C

2) The Peritectic temperature in Fe – C diagram is

A. 727°C

B. 1147°C

C. 1394°C

D. 1493°C

Correct Answer is "D"

The Peritectic temperature in Fe – C diagram is 1493°C

3) Which of the following invariant reaction occurs in the Fe – C diagram?

A. Monotectic

B. Peritectoid

C. Syntectic

D. None of the above

Correct Answer is "A"

There are 4 invariant reactions in the Fe – C phase diagram and these are peritectic, monotectic, eutectic, and eutectoid.

4) Monotectic reaction in Fe-C occurs at

A. 1394°C

B. 1493°C

C. 1147°C

D. 912°C

Correct Answer is "B"

The monotectic reaction in Fe-C occurs at 1493°C

5) What is the solubility of α ferrite at 0°C?

A. 0.022%

B. 0.05%

C. 0.005%

D. 0.0005%

Correct Answer is "C"

The solubility of α ferrite at 0°C is 0.005% and at 727°C is 0.022%.

6) How much iron does cementite contain?

A. 6.67%

B. 93.3%

C. 4.3%

D. 2.14%

Correct Answer is "B"

Cementite contain 6.67 wt% C.

7) What is the maximum solubility of carbon in austenite at 1148°C?

A. 0.08%

B. 0.18%

C. 2.14%

D. 4.30%

Correct Answer is "C"

The maximum solubility of carbon in austenite at 1148°C is 2.14%

8) Composition up to 0.008% carbon is considered as

A. Pure iron

B. Mild Steel

C. Cast iron

D. Pig iron

Correct Answer is "A"

Composition up to 0.008% carbon is considered as Pure iron

9) Steels containing 0.76% C is known as

A. Proeutectoid

B. Eutectoid

C. Hypoeutectoid

D. Hypereutectoid

Correct Answer is "B"

Steels containing 0.76% C is known as eutectoid

10) How much carbon does hypo eutectoid steel contain?

A. 0.76%

B. >0.76%

C. <0.76%

D. 2.1%

Correct Answer is "C"

Hypoeutectoid steel contain <0.76% steel

Do you read all the questions and answers given above carefully? let's make a practice on all the questions given above.
Go to:  Practice Test on Phase Diagram (MCQ) PART - VII

Suggested Topics:

Phase Diagram Multiple Choice Questions (MCQ) & Answers Part - VI

Phase Diagram Multiple Choice Questions (MCQ) & Answers Part - VIII

Phase Diagram Multiple Choice Questions (MCQ) & Answers All Parts

Phase Diagram Multiple Select Questions (MSQ) & Answers All Parts

Phase Diagram All Formulas

Phase Diagram Numerical Problems Questions & Answers All Parts

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