GATE ME 2017 Paper 2 — page 4

Questions 10–12 of 65. Imported answers require review unless explicitly marked reviewed.

A steel bar is held by two fixed supports as shown in the figure

Diagram for Mechanical Engineering question 10

and is subjected to an increase of temperature

. If the coefficient of thermal expansion and Young’s modulus of elasticity of steel are

and

, respectively, the magnitude of thermal stress (in MPa) induced in the bar is __________

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A machine component made of a ductile material is subjected to a variable loading with

and

. If the corrected endurance limit and the yield strength for the material are

and

, respectively, the factor of safety is __________

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In a slider-crank mechanism, the lengths of the crank and the connecting rod are 100 mm and 160 mm, respectively. The crank is rotating with an angular velocity of 10 radian/s counter-clockwise. The magnitude of linear velocity (in m/s) of the piston at the instant corresponding to the configuration shown in the figure

Diagram for Mechanical Engineering question 12

is __________

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2017 · Paper 2

Question 10

Question 11

Question 12