A rectangular beam 20 cm wide is subjected to a maximum shearing force of 10, 000 kg, the corresponding maximum shearing stress being 30 kg/cm2. The depth of the beam is
Options
A. 15 cm
B. 20 cm
C. 25 cm
D. 30 cm.
Correct Answer
25 cm
Strength of Materials problems
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1. The radius of gyration of a rectangular section is not proportional to
Options
A. square root of the moment of inertia
B. square root of the inverse of the area
C. square root of the moment of inertia divided by area of the section
4. A triangular section having base b, height h, is placed with its base horizontal. If the shear stress at a depth y from top is q, the maximum shear stress is
6. A closely coiled helical spring of radius R, contains n turns and is subjected to an axial load W. If the radius of the coil wire is r and modulus of rigidity of the coil material is C, the stress developed in the helical spring is
