Q.1
Study the following statements.
i) Top lateral bracing prevents the sidesway buckling of the chord.
ii) Sway bracing keeps the rectangular shape of the bridge cross-section.
iii) Sway bracing transfers the load from top of end posts to bearings.
The correct answer is
Q.2
The allowable shear stress in the web of mild steel beams decreases with (where ‘h’ is height and t is thickness)
Q.3
For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration?
Q.4
Select the correct statement
Q.5
In case of timber structures, the form factor for solid circular cross-section is taken as
Q.6
The portal bracing in a truss bridge is used to
Q.7
The effective length of a battened strut effectively held in position at both ends but not restrained in direction is taken as
Q.8
The ratio of plastic section modulus to elastic section modulus
Q.9
The web crippling due to excessive bearing stress can be avoided by
Q.10
Battening is preferable when the
i) column carries axial load only
ii) space between the two main components is not very large
iii) column is eccentrically loaded
The correct answer is
Q.11
Bearing stiffeners are provided at
i) the supports
ii) the mid span
iii) the point of application of concentrated loads
The correct answer is
Q.12
Which of the following types of riveted joint is free from bending stresses ?
Q.13
The risk coefficient k, depends on
Q.14
As per IS : 800, for compression flange, the outstand of flange plates should not exceed (where t = thickness of thinnest flange plate)
Q.15
Economical depth of a plate girder corresponds to
Q.16
Angle of inclination of the lacing bar with the longitudinal axis of the column should preferably be between
Q.17
The maximum slenderness ratio of a compression member carrying both dead and superimposed load is
Q.18
When the bolts are subjected to reversal of stresses, the most suitable type of bolt is
Q.19
Minimum thickness of web in a plate girder, when the plate is accessible and also exposed to weather, is
Q.20
According to IS Specifications, the effective length of a column effectively held in position at both ends and restrained in direction at one end is taken as
Q.21
compression force in two end posts The pin of a rocker bearing in a bridge is designed for
Q.22
The best arrangement to provide unified behaviour in built up steel columns is by
Q.23
The maximum spacing of vertical stiffeners is (where d is the distance between flange angles)
Q.24
According to IS Specifications, the maximum pitch of rivets in compression is (where t is thickness of thinnest outside plate or angle)
Q.25
As compared to field rivets, the shop rivets are
Q.26
Which of the following sections should preferably be used at places where torsion occurs?
Q.27
Minimum spacing of vertical stiffeners is limited to (where d is the distance between flange angles)
Q.28
The diameter of base of conical flare of a steel stack is (where d is the diameter of the cylindrical part)
Q.29
A butt weld is specified by
Q.30
The bracing provided in the plane of end posts is called
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