Strength of Materials Questions

• When a body is subjected to bi-axial stress i.e. direct stresses (σx) and (σy) in two mutually perpendicular planes accompanied by a simple shear stress (τxy), then maximum normal stress is
• 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 (φ) = Angle of repose of the retained earth)
• The extension of a circular bar tapering uniformly from diameter d1 at one end to diameter d2 at the other end, and subjected to an axial pull of P is given by
• The bending moment at the centre of a simply supported beam with a gradually varying load from zero at both ends to w per metre at the centre is wl/4.
• For long columns, thevalue of buckling load is __________ crushing load.
• A simply supported beam is one which is supported on more than two supports.
• In a thick cylindrical shell subjected to an internal pressure (p), the tangential stress across the thickness of a cylinder is
• In order to avoid tearing off the plate at an edge, the distance from the centre of the rivet hole to the nearest edge of the plate (i.e. margin) should be (where d = Diameter of rivet hole in mm)
• When a body is subjected to bi-axial stress i.e. direct stresses (σx) and (σy) in two mutually perpendicular planes accompanied by a simple shear stress (τxy), then minimum normal stress is
• In the below figure, the point C represents
• In a riveted joint, when the rivets in the various rows are opposite to each other, the joint is said to be
• A pressure vessel is said to be a thin shell when it is made of thin sheets.
• The direct stress, across a principal plane, is known as principal stress.
• A beam encastered at both the ends is called
• A thin cylindrical shell of diameter (d), length (l) and thickness (t) is subjected to an internal pressure (p). The ratio of longitudinal strain to hoop strain is
• According to Euler's column theory, the crippling load for a column length (l) hinged at both ends, is
• The ratio of bulk modulus to Young's modulus for a Poisson's ratio of 0.25 will be
• When a column is subjected to an eccentric load, the stress induced in the column will be
• A double strap butt joint with equal straps is
• A reinforced cement concrete beam is considered to be made of