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ISRO ME 2019: Material Science Booster Quiz 1
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Question 1
Which of the following surface hardening processes needs no quenching?
Question 2
For converting the steel into 100% martensite, it is quenched into a bath of liquid N2, this process is called________.
Question 3
The structure of α - iron in iron carbon diagram is ________.
Question 4
Match List – I with List – II and select the correct answer using the codes given below the list
Question 5
The weight percentage of α in iron-carbon diagram in mixture of pearlite and cementite at 0.8% of carbon and 720 °C is __________. (Assume left intercept of tie line is at 0.008 % C)
Question 6
The crystal plane shown is represented by
Question 7
What is the process by which two or more chemically different monomers are polymerized to form a cross link polymer together with a by-product such as water or ammonia, known as?
Question 8
Hook’s law of proportionality in stress strain diagram is shown considering point:
Question 9
In the creep curve as shown, at what possible point can failure occur?
Question 10
Which of the following heat treatment processes are not used for surface hardening ?
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Sep 30ESE & GATE ME
