Production and Industrial Engineering
2018 · Paper 1
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Complete GATE PI 2018 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 43–45 of 65. Imported answers require review unless explicitly marked reviewed.
Question 33
Open questionPIMCQ2 marksNeeds review
In a mass production firm, measurements are carried out on 1000 pairs of shaft and hole. The mean diameters of the shaft and the hole are 37.53 mm and 37.59 mm, respectively. The corresponding standard deviations are 0.03 mm and 0.04 mm. The mean clearance and its standard deviation (both in mm), respectively, are
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A pressure die casting set-up was tested by injecting water (density 1000 kg/m
) at a pressure of 200 bar. Mould-filling time was found to be 0.05 s. Afterward, the actual casting is made by injecting the liquid metal (density 2000 kg/m
) at an injection pressure of 400 bar. Neglect all losses (friction, viscous-effect, etc.). The approximate mould-filling time (in s) isYour answerChoose one option.
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Open questionPINAT2 marksNeeds review
The value of the surface integral
over the surface S of the sphere
, where n is the unit outward normal to the surface element dS, is _____Log in to check the answer
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