If b is the width of a plate joined by diamond riveting of diameter d, the efficiency of the joint is given by
Columns of given length, cross-section and material have different values of buckling loads for different end conditions. The strongest column is one whose
The radius of gyration of a rectangular section is not proportional to
When loads are applied proportionately to a frame structure containing its members in one plane, the structure is called
Influence lines are drawn for structures
A reinforced concrete beam is assumed to be made of
A three-hinged arch is said to be :
The shear stress at any section of a shaft is maximum
The maximum twisting moment a shaft can resist, is the product of the permissible shear stress and
The minimum number of rivets for the connection of a gusset plate, is
A shaft turningr.p.m. is subjected to a torque ofkgm. Horse power transmitted by the shaft is
If the rivets in adjacent rows are staggered and outermost row has only one rivet, the arrangement of the rivets, is called
The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, is
If the width of a simply supported beam carrying an isolated load at its centre is doubled, the deflection of the beam at the centre is changed by
For a simply supported beam with a central load, the bending moment is
A beam of length L is pinned at both ends and is subjected to a concentrated bending couple of moment M at its centre. The maximum bending moment in the beam is
In case of an eccentric loading on a bracket subjected to moment M, the tangential force developed in any rivet, at right angles to its radius vector r is
A simply supported beam carrying a uniformly distributed load over its whole span, is propped at the centre of the span so that the beam is held to the level of the end supports. The reaction of the prop will be
The shape of the bending moment diagram over the length of a beam, having no external load, is always
A beam is said to be of uniform strength, if
For a simply supported beam of length L, the bending moment M is described as M = a (x - x3/L2), 0 ≤ x < L; where a is a constant. The shear force will be zero at
For a given material Young's modulus isGN/m2 and modulus of rigidity isGN/m2. The value of Poisson's ratio is
The slenderness ratio of a vertical column of a square cross-section of 2.5 cm sides andcm length, is
If two forces acting at a joint are not along the straight line, then for the equilibrium of the joint
A simply supported beam of span L carries a concentrated load W at its mid-span. The maximum bending moment M is
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