Metallurgical Engineering
2018 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE MT 2018 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 16–18 of 65. Imported answers require review unless explicitly marked reviewed.
Question 6
Open questionMTMCQ1 markNeeds review
During decarburization in a steel bath at 1550 °C, the compositions of dissolved C (wt.%C) and dissolved O (wt.%O) follow the relation:
(wt.%C)(wt.%O) = K
When the partial pressure of CO (
) is 1 atm, K = 0.002.
If
atm, what is the value of K, at the same temperature?
Note: Assume Henry’s law is applicable.Your answerChoose one option.
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Open questionMTMCQ1 markNeeds review
During upset forging, and considering friction, which of the following profiles represents the axial compressive stress?
Note: In these profiles, the absolute value of the axial compressive stress is plotted on the y-axis.
Your answerChoose one option.
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Open questionMTMCQ1 markNeeds review
Consider the following engineering components:
P. Gas turbine blades
Q. Tungsten-based heavy alloy penetrators
R. Self-lubricating bearings
S. Engine block of an automobile
Which of the following two components are produced by powder metallurgy?
Your answerChoose one option.
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