Production and Industrial Engineering
2026 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE PI 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 19–21 of 65. Imported answers require review unless explicitly marked reviewed.
Question 19
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An Iron-Carbon alloy at room temperature has pro-eutectoid ferrite as a constituent in the microstructure, that formed above the eutectoid temperature. The alloy also has pearlite as another constituent that has formed below eutectoid temperature.
Which ONE of the following best describes this Iron-Carbon alloy?
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An engineering student is fabricating a setup and needs a key for connecting a shaft to the hub of a rotating machine element. The student uses a sunk key which is tapered and prevents relative axial motion.
Which ONE of the following keys did the student most likely use?
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The ratio of hydrostatic stress to volumetric strain is known as ______.
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