Maximum permissible slenderness ratio of compression members which carry dead and superimposed load, is
For a cantilever beam of length L built-in at the support and restrained against torsion at the free end, the effective projecting length l is
As per ISI, rolled steel beam sections are classified into
The distance between the outer faces of flanges of a plate girder, is known as
In double lacing, the thickness t of flat lacing is
For the economical design of a combined footing to support two equal column loads, the projections of beams in lower tier are kept such that bending moment under column is equal to
If d is the distance between the flange angles,
Perforated cover plates are particularly suitable for built up sections consisting of
For simply supported beams, the maximum permitted deflection, is
The effective length of a weld, is taken as the actual length
The least permissible clear dimension of the web of thickness t in the panel of a plate girder, is restricted to
Pick up the correct statement from the following:
The diameter of a bolt hole is taken as the nominal diameter of the bolt plus
If the area of cross-section of a single angle discontinuous strut iscm2 and allowable working stress corresponding to its slenderness ratio iskg/cm2, the safe load carrying capacity of the member, is
In a built up section carrying a tensile force, the flanges of two channels are turned outward
Water pressure in acm water main iskg/cm2. The minimum thickness of the metal required for the water main, not to be stressed more thankg/cm2, is
In rolled steel beams, shear force is mostly resisted by
If M is the moment due to a couple in a bearing plate whose width is b and allowable bending stress is P, the thickness (t) of the bending plate of the column splice, is
In a truss girder of a bridge, a diagonal consists of mild steel flat 4001.S.F. and carries a pull oftonnes. If the grossdiameter of the rivet ismm, the number of rivets required in the splice, is
Effective length of a column effectively held in position at both ends and restrained in direction at one end, is
The permissible bearing stress in steel, is
If P is the wind pressure in kg/cm2, v is the velocity in km/hour and K is a constant of proportionality, then
In a tension member if one or more than one rivet holes are off the line, the failure of the member depends upon :
When plates are exposed to weather, tacking rivets are provided at a pitch in line not exceeding (where t is the thickness of the outside plate).
When the depth of a plate girder is at least n times the depth of vertical leg of the flange angles, the girder is known as deep plate girder, if n is
Design of a riveted joint, is based on the assumption:
The strength of ISA=xmm used as a tie member with its longer leg connected at the ends bymm diameter rivets, is
The main assumption of the method of simple design of steel frame work, is :
The minimum pitch of rivet holes of diameter d should not be less than
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