Rivets connecting flange angles to cover plates in a plate girder are subjected to
A. Horizontal shear only
B. Vertical load only
C. Both (A) and (B)
D. None of the above
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When the axis of load lies in the plane of rivet group, then the rivets are subjected to
A. Only shear stresses
B. Only tensile stresses
C. Both (A) and (B)
D. None of the above
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Hudson’s formula gives the dead weight of a truss bridge as a function of
A. Bottom chord area
B. Top chord area
C. Effective span of bridge
D. Heaviest axle load of engine
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The number of seismic zones in which the country has been divided are
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Maximum pitch of rivets, used in steel stacks, is limited to (where t is thickness of thinner plate being connected)
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If the floor is supported at or near the bottom but top chords of a bridge is not braced, then the bridge is called
A. Deck type
B. Through type
C. Half through type
D. Double deck type
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By providing sufficient edge distance, which of the following failures of riveted joint can be avoided?
A. Tension failure of the plate
B. Shear failure of the rivet
C. Shear failure of the plate
D. Crushing failure of the rivet
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The maximum permissible span of asbestos cement sheets is
A. 650 mm
B. 810 mm
C. 1250 mm
D. 1680 mm
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The use of tie plates in laced columns is
A. Prohibited
B. Not prohibited
C. Permitted at start and end of lacing system only
D. Permitted between two parts of the lacing
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The effective length of a fillet weld should not be less than
A. Two times the weld size
B. Four times the weld size
C. Six times the weld size
D. Weld size
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Normally, the angle of roof truss with asbestos sheets should not be less than
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Pitch of tacking rivets, when double angles connected back to back and acting as tension members should not be more than
A. 500 mm
B. 600 mm
C. 1000 mm
D. 300 mm
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Efficiency of a riveted joint, having the minimum pitch as per IS : 800, is
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The moment-curvature relation at a plastic hinge is
A. Linear
B. Parabolic
C. Constant moment for all curvatures
D. Constant curvature for all moments
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The forces acting on the web splice of a plate girder are
A. Axial forces
B. Shear and axial forces
C. Shear and bending forces
D. Axial and bending forces
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The actual thickness of butt weld as compared to the thickness of plate is usually
A. More
B. Less
C. Equal
D. None of the above
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A circular column section is generally not used in actual practice because
A. It is uneconomical
B. It cannot carry the load safely
C. It is difficult to connect beams to the round sections
D. All of the above
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To minimize the total cost of a roof truss, the ratio of the cost of truss to the cost of purlins shall be
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The connection of intermediate vertical stiffeners to the web, not subjected to external loads, shall be designed for a minimum shear force (kN/m) of
(where, t = the web thickness in mm h = the outstand of stiffener in mm)
A. 75 t2 /h
B. 125 t3 /h2
C. 125 t2 /h
D. 175 t2 /h
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Diameter of a bolt hole is usually taken as
A. Gross diameter of bolt
B. Nominal diameter +1.5 mm
C. Nominal diameter +2.0 mm
D. Nominal diameter of bolt
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