Gate Exam HR Interview

A thin cylindrical shell of diameter (d), length (l) and thickness (t)is subjected to an internal pressure (p). The hoop stress in the shell is

A. pd/t
B. pd/2t
C. pd/4t
D. pd/6t

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Gate Other Question

A square beam and a circular beam have the same length, same allowable stress and the same bending moment. The ratio of weights of the square beam to the circular beam is

A. 1/2
B. 1
C. 1/1.12
D. 1/2

When a body is subjected to a direct tensile stress (σ) in one plane, then tangential or shear stress on an oblique section of the body inclined at an angle θ to the normal of the section is

A. σ sin 2θ
B. σ cos 2θ
C. σ/2 sin 2θ
D. σ/2 cos 2θ