Metallurgical Engineering
2017 · Paper 1
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Complete GATE MT 2017 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 52–54 of 65. Imported answers require review unless explicitly marked reviewed.
Question 52
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A perfectly elastic-plastic material has a yield stress of 450 MPa and fractures at a strain of 0.45. The ratio of resilience to toughness for this material is ________ (answer up to three decimal places)
(Given the Young’s modulus E = 4.5 GPa)
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Total time for solidification of a cubic casting of dimensions 5.0 cm × 5.0 cm × 5.0 cm is 1.6 min. A cylindrical riser with diameter to height ratio 0.5 is required so that the time for solidification of riser is 3.2 min. Applying Chvorinov’s rule, the height of the riser (in cm) is ________ (answer up to two decimal places)
(Assume that exponent (n) in Chvorinov’s equation is 2)
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 54
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A 250 mm thick slab of a nickel alloy is subjected to cold rolling using a roll of diameter 450 mm. If the angle of bite during rolling is 10°, the maximum possible reduction (in mm) during rolling is ________ (answer up to two decimal places)
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