Metallurgical Engineering
2019 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE MT 2019 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 61–63 of 65. Imported answers require review unless explicitly marked reviewed.
Question 51
Open questionMTNAT2 marksNeeds review
True stress - true strain behavior of a metal is given by the flow curve equation
where
is in MPa. The true stress at necking (in MPa, rounded off to the nearest integer) is ________.Log in to check the answer
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In sand-mold casting of a metal, it takes 180 seconds to complete solidification of a 27 cm
cube-shaped casting. All other parameters remaining constant, the total solidification time (in seconds, rounded off to one decimal place) for a cylinder-shaped [radius = 1 cm and height = 6 cm] casting of the same metal, is ________.Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 53
Open questionMTNAT2 marksNeeds review
If the solid-solid interfacial energy (
) is 0.87
and solid-liquid interfacial energy (
) is 0.5
, the dihedral angle (
, in degree, rounded off to one decimal place) during sintering is ________.
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