When a body is subjected to bi-axial stress i.e. direct stresses (?x) and (?y) i

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When a body is subjected to bi-axial stress i.e. direct stresses (?_x) and (?_y) in two mutually perpendicular planes accompanied by a simple shear stress (?_xy), then maximum normal stress is
Options
A.
B.
C.
D.

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2. The tensile strength of the welded joint for double fillet is (where s = Leg or size of the weld, l = Length of weld, and ?_t = Allowable tensile stress for weld metal)
Options
A. 0.5 s.l.?_t
B. s.l.?_t
C. 2 s.l.?_t
D. 2.s.l.?_t

3. In a thick cylindrical shell subjected to an internal pressure (p), the maximum radial stress at the inner surface of the shell is
Options
A. zero
B. p (tensile)
C. -p (compressive)
D. 2p (tensile)

6. The horizontal thrust offered by the retaining wall on the retained material is (where w = Specific weight of the retained material, h = height of retaining wall, and (?) = Angle of repose of the retained earth)
Options
A.
B.
C.
D.

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