Mechanical Engineering
GATE ME topic:engineering-materials PYQs
Build your understanding with focused practice from past exam papers.
Questions 11–20 of 21. Imported answers require independent review unless marked reviewed.
Question 11
Open questionMEMCQ1 markNeeds review
Match the following.
Heat treatment process | Effect |
|---|---|
P: Temper | 1. Strengthening |
Q: Quenching | 2. Toughening |
R: Annealing | 3. Hardening |
S: Normalizing | 4. Softening |
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Open questionMEMCQ1 markNeeds review
Which one of the following statements about a phase diagram is INCORRECT?
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Open questionMEMCQ1 markNeeds review
Hardenability of steel is a measure of
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Open questionMEMCQ2 marksNeeds review
The binary phase diagram of metals P and Q is shown in the figure.
An alloy X containing 60% P and 40% Q (by weight) is cooled from liquid to solid state. The fractions of solid and liquid (in weight percent) at 1250 °C, respectively, will be
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Open questionMEMCQ1 markNeeds review
Denoting L as liquid and M as solid in a phase-diagram with the subscripts representing different phases, a eutectoid reaction is described by
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Open questionMEMCQ1 markNeeds review
The number of atoms per unit cell and the number of slip systems, respectively, for a face-centered cubic (FCC) crystal are
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Open questionMENAT2 marksNeeds review
The true stress (in MPa) versus true strain relationship for a metal is given by
The cross-sectional area at the start of a test (when the stress and strain values are equal to zero) is 100 mm². The cross-sectional area at the time of necking (in mm²) is ______ (correct to two decimal places)
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Open questionMENAT2 marksNeeds review
A bar is compressed to half of its original length. The magnitude of true strain produced in the deformed bar is ________ (correct to two decimal places).
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Open questionME-2MCQ1 markNeeds review
The crystal structure of aluminium is
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Open questionME-2NAT1 markNeeds review
Given the atomic weight of Fe is 56 and that of C is 12, the weight percentage of carbon in cementite (Fe
C) is ____________Log in to check the answer
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