The horizontal thrust offered by the retaining wall on the retained material is

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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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1. 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.

3. 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

4. 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)

10. In a thick cylindrical shell subjected to an internal pressure (p), the tangential stress across the thickness of a cylinder is
Options
A. maximum at the outer surface and minimum at the inner surface
B. maximum at the inner surface and minimum at the outer surface
C. maximum at the outer surface and zero at the inner surface
D. maximum at the inner surface and zero at the outer surface

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