Aerospace Engineering
2017 · Paper 1
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Complete GATE AE 2017 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 52–54 of 65. Imported answers require review unless explicitly marked reviewed.
Question 52
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For the state of plane stress shown in the figure, the minimum principal stress is
. The normal stress
in
is equal to ________ (round to nearest integer). 
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The maximum normal stress in MN/m² for the thin walled beam of square cross section of outer dimension 120 mm x 120 mm and wall thickness 1 mm under the action of moment
Nm as shown in the figure is ________ (in three decimal places). 
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The idealized cross section of a thin-walled wing box structure shown in the figure is subjected to an anticlockwise torque of 10 kNm. The corresponding shear-flow distribution under this loading condition is shown in the figure. The area of each cell is
mm² and
mm². The ratio of the unknown
is given by ________ (in three decimal places). 
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