Production and Industrial Engineering
2020 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE PI 2020 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 9
Open questionPIMCQ1 markNeeds review
The state of stress at a point in a body under plane stress condition is shown in the figure. The positive directions of
and
axes are also shown. The material of the body is homogeneous and isotropic, with modulus of elasticity
and Poisson’s ratio
. The longitudinal strain in the
-direction is 
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Open questionPIMCQ1 markNeeds review
The figure shows two bodies connected through a riveted joint with one rivet. The diameter of the rivet is
(in m). The joint transmits a load of
(in N) whose line of action is perpendicular to and intersects the vertical axis of the rivet. Neglect any effect of bending of the rivet. If the allowable shear stress for the material of the rivet is
N/m
, the diameter of the rivet required to prevent failure in shear is 
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Open questionPIMCQ1 markNeeds review
Consider flow of an oil with Reynolds number 1500 in a pipe of diameter 5 cm. The kinematic viscosity of the oil,
cm
/s. The value of average velocity in m/s isYour answerChoose one option.
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