ESE 2019: Basics of Material Science and Engineering-Quiz 3

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Question 1

Maximum number of phase possible in a binary phase diagram is ____.

• A0
• B3
• C1
• D2

Question 2

The solubility of carbon in ferrite ( % wise and % carbon in eutectoid steel are respectively

• A6.67 and 0.33
• B0.33 and 0.83
• C6.67 and 2
• D0.33 and 0.38

Question 3

In iron-iron carbide phase diagram, what is the structure which is pure form of iron having FCC crystal structure and non-magnetic in nature

• AAustenite
• Bledeburite
• Ccementite
• Dferrite

Question 4

Which of the following is an example of iso-morphous system _______.

• ACu- Ni system
• BAu-Ag system
• CAu-cu system
• Dall of these

Question 5

The atomic packing factor for a material with body centered cubic structure is

• A0.68
• B0.53
• C0.89
• D0.87

Question 6

If a particular Fe–C alloy contains less than 0.83% carbon, it is called

• Ahigh speed steel
• Bhypoeutectoid steel
• Chypereutectoid steel
• Dcast iron

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