Related Questions
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The live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as
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The distance between the outer faces of flanges of a plate girder, is known as
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4
The risk coefficient k, depends on
A. Mean probable design life of structures
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4
Generally the purlins are placed at the panel points so as to avoid
D. Bending moment in rafter
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4
The distance measured along one rivet line from the centre of a rivet to the centre of adjoining rivet on an adjacent parallel rivet line, is called
B. Gauge distance of rivet
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4
On steel structures the dead load is the weight of
B. Material fastened to steel work
C. Material supported permanently
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If p and d are pitch and gross diameter of rivets, the efficiency (η) of the riveted joint, is given by
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In a truss girder of a bridge, a diagonal consists of mild steel flat 4001.S.F. and carries a pull of 80 tonnes. If the gross-diameter of the rivet is 26 mm, the number of rivets required in the splice, is
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4
As per IS : 875, for the purposes of specifying basic wind velocity, the country has been divided into
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Factor of safety is the ratio of
A. Yield stress to working stress
B. Tensile stress to working stress
C. Compressive stress to working stress
D. Bearing stress to working stress
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4
A second horizontal stiffener is always placed at the neutral axis of the girder if the thickness of the web is less than
A. d/250 for structural steel
B. d/225 for high tensile steel
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The channels get twisted symmetrically with regard to its axis
C. Perpendicular to flanges
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The sway bracing is designed to transfer
A. 2Vi % of the top panel wind load to bottom bracing
B. 10% of the top panel wind load to bottom bracing
C. 25% of the top panel wind load to bottom bracing
D. 50% of the top panel wind load to bottom bracing
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4
The average shear stress for rolled steel beam section, is
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The beam outside a wall upto floor level above it, is known as
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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
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When a tension member consists of two channel sections, the allowance for rivet hole is made for two holes from
C. Each web or one hole from each flange whichever is more
D. Each web or one hole from each flange whichever is less
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4
Lug angle is
A. Used with single angle member
B. Not used with double angle member
C. Used with channel member
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The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is
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Gantry girders are designed to resist
B. Longitudinal loads and vertical loads
C. Lateral, longitudinal and vertical loads
D. Lateral and longitudinal loads
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On eccentrically loaded columns, the equivalent axial load may be obtained by
A. Adding the axial load, eccentric load, the product of the bending moment due to eccentric load and the appropriate bending factor
B. Adding the axial load and eccentric load and subtracting the product of bending moment and appropriate bending factor
C. Dividing the sum of axial load and eccentric load by the product of the bending moment and appropriate bending factor
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Under a concentrated load, bearing stress fb in a beam is given by (where b is the length of the bearing plate and h is the depth of the root of the fillet).
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If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of rivets in tension will be taken as
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For a rectangular section, the ratio of the maximum and average shear stresses, is
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The minimum thickness of a steel plate, which is directly exposed to weather and is not accessible for cleaning and repainting, should be:
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If L is the overall length of a combined footing having A as its area, d being the distance between the centre of gravity of the base and centre of the base, the larger width b is
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The stress in the wall of a thin cylinder subjected to internal pressure, is
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The bracing between two columns of a steel tank will be designed to resist
A. Horizontal shear due to wind or earthquake only
B. Horizontal, shear due to wind or earthquake + 2.5% of column loads
C. Column loads + 2.5% of horizontal shear due to wind or earthquake
D. Column loads + full horizontal shear due to wind or earthquake
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Normally, the angle of roof truss with asbestos sheets should not be less than
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Tacking rivets in tension members, are provided at a pitch in line not exceeding