Related Questions
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4
The risk coefficient k, depends on
A. Mean probable design life of structures
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4
Select the correct statement
A. Material cost of a rivet is higher than that of a bolt
B. Tensile strength of a bolt is lesser than that of a rivet
C. Bolts are used as a temporary fastening whereas rivets are used as permanent fastenings
D. Riveting is less noisy than bolting
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4
When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which (Where, Fa is the load shared by each rivet due to axial load and Fm is the shearing load due to moment in any rivet.)
A. Is at the maximum distance from CG of the rivet group
B. Is at the minimum distance from CG of the rivet group
C. Gives the maximum angle between the two forces Fa and Fm
D. Gives the minimum angle between the two forces Fa and Fm
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4
The web crippling due to excessive bearing stress can be avoided by
A. Increasing the web thickness
B. Providing suitable stiffener
C. Increasing the length of the bearing plates
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4
Working shear stress on the gross area of a rivet as recommended by Indian Standards, is
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4
A riveted joint many experience
A. Tearing failure of plates
B. Splitting failure of plates at the edges
C. Bearing failure of rivets
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4
If d is the distance between the flange angles, the vertical stiffeners in plate girders are spaced not greater than
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4
The least permissible clear dimension of the web of thickness t in the panel of a plate girder, is restricted to
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4
Net sectional area of a tension member, is equal to its gross section area
A. Plus the area of the rivet holes
B. Divided by the area of rivet holes
C. Multiplied by the area of the rivet holes
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4
Length of an outstanding leg of a vertical stiffener, may be taken equal to
A. 1/10th of clear depth of the girder plus 15 mm
B. 1/20th of clear depth of the girder plus 20 mm
C. 1/25th of clear depth of the girder plus 25 mm
D. 1/30th of clear depth of the girder plus 50 mm
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4
If the thickness of plate to be connected by a rivet is 16 mm, then suitable size of rivet as per Unwin's formula will be
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4
Long column is one
A. Which is more than 3 m long
B. Whose lateral dimension is less than 25 cm
C. Which is free at its top
D. Which has a ratio of effective length and least lateral dimension more than 15
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4
A riveted joint may experience
B. Shear failure of plates
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4
A simply supported beam carrying a central load, will be safe in deflection if the ratio of its span to depth, is
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4
For a rectangular section, the ratio of the maximum and average shear stresses, is
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4
Maximum permissible slenderness ratio of a member normally acting as a tie in a roof truss, is
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4
Rolled steel Tee-sections are used
B. With flat strips to connect plates in steel rectangular tanks
C. As built up sections to resist axial tension
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4
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
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4
IS : 800 - 1971 recommends that in a splice plate the number of rivets carrying calculated shear stress through a packing greater than 6 mm thick, is to be increased by 2.5% for every
A. 1.00 mm thickness of packing
B. 1.50 mm thickness of packing
C. 2.0 mm thickness of packing
D. 2.50 mm thickness of packing
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4
The tensile strength of mild steel for bolts and nuts should not be less than
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4
The ratio of hydrostatic stress to the volumetric strain within the elastic range, is called
B. Shear modulus of elasticity
C. Bulk modulus of elasticity
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4
The permissible stress to which a structural member can be subjected to, is known as
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4
Pick up the correct statement from the following:
A. Vertical stiffeners may be placed in pairs one on each side of the web
B. Single vertical stiffeners may be placed alternately on opposite sides of the web
C. Horizontal stiffeners may be placed alternately on opposite sides of the web
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4
A single angle in tension is connected by one leg only. If the areas of connecting and outstanding legs are respectively a and b, net effective area of the angle, is
A. a - [b/{1 + 0.35 (b/a)}]
B. a + [b/{1 + 0.35 (b/a)}]
C. a - [b/{1 + 0.2 (b/a)}]
D. a + [b/{1 + 0.2 (b/a)}]
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4
The side thrust T on the tie rods provided at the end beam of jack arch of rise R, is calculated from the formula
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4
Shape factor is a property which depends
A. Only on the ultimate stress of the material
B. Only on the yield stress of the material
C. Only on the geometry of the section
D. Both on the yield stress and ultimate stress of material
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4
In a fillet weld placed on the sides of the base, the metal experiences
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4
An imaginary line along which rivets are placed, is known as
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4
In case of plastic design, the calculated maximum shear capacity of a beam as per IS: 800 shall be
D. 0.85 Aw.fy Where, Aw = effective cross-sectional area resisting shear fy = yield stress of the steel
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4
Study the following statements. (i) Top lateral bracing prevents the sides-way buckling of the chord. (ii) Sway bracing keeps the rectangular shape of the bridge crosssection. (iii) Sway bracing transfers the load from top of end posts to bearings. The correct answer is
D. All (i), (ii) and (iii)