Production and Industrial Engineering
2023 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE PI 2023 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 22–24 of 65. Imported answers require review unless explicitly marked reviewed.
Question 22
Open questionPIMCQ1 markNeeds review
A copper rod of 200 mm diameter and 400 mm length is extruded to the final diameter of 100 mm. The extrusion ratio is
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Open questionPIMCQ1 markNeeds review
A symbol for surface texture parameters is shown in figure. The difference between maximum and minimum values of surface roughness (
) is 
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Open questionPIMCQ1 markNeeds review
A thin cylinder has length L, diameter d, and thickness
. It is made of a material with modulus of elasticity E and Poisson’s ratio
. When the cylinder is subjected to an internal pressure P, the change in length isYour answerChoose one option.
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