A riveted joint may experience
Shear failure
Shear failure of plates
Bearing failure
All the above
Correct Answer :
D. All the above
Related Questions
When a large value of radius of gyration is not required
Channels are placed back to back
Channel flanges are kept inward
Channel flanges are kept outward
None of these
Modified moment of inertia of sections with a single web, is equal to moment of inertia of the section about Y-Y axis at the point of maximum bending moment and is multiplied by the ratio of
Area of compression flange at the minimum bending moment to the corresponding area at the point of maximum bending moment
Area of tension flange at the minimum bending moment of the corresponding area at the point of maximum bending moment
Total area of flanges at the maximum bending moment to the corresponding area at the point of maximum bending moment
None of these
The gross section of the web of a beam is defined as
Depth of the beam multiplied by its web thickness
Width of the flange multiplied by its web thickness
Sum of the flange width and depth of the beam multiplied by the web thickness
None of these
The bracing between two columns of a steel tank will be designed to resist
Horizontal shear due to wind or earthquake only
Horizontal, shear due to wind or earthquake + 2.5% of column loads
Column loads + 2.5% of horizontal shear due to wind or earthquake
Column loads + full horizontal shear due to wind or earthquake
The live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as
0.65 kN/m²
0.75 kN/m²
1.35 kN/m²
1.50 kN/m²
The deflection of beams may be decreased by
Increasing the depth of beam
Increasing the span
Decreasing the depth of beam
Increasing the width of beam
In plastic analysis, the shape factor for circular sections, is
1.5
1.6
1.697
None of these
The maximum permissible span of asbestos cement sheets is
650 mm
810 mm
1250 mm
1680 mm
When two plates are placed end to end and are joined by two cover plates, the joint is known as
Lap joint
Butt joint
Chain riveted lap joint
Double cover butt joint
The range of economical spacing of trusses varies from
L/3 to L/5
L/4 to 2L/5
L/3 to L/2
2L/5 to 3L/5, where L is span
Length of an outstanding leg of a vertical stiffener, may be taken equal to
1/10th of clear depth of the girder plus 15 mm
1/20th of clear depth of the girder plus 20 mm
1/25th of clear depth of the girder plus 25 mm
1/30th of clear depth of the girder plus 50 mm
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
Bending moment at the centre of the beam
Half the bending moment at the centre of the beam
Twice the bending moment at the centre of the beam
None of these
The maximum slenderness ratio of a steel column, the design of which is governed by wind or seismic forces is
150
180
250
350
Maximum pitch of rivets, used in steel stacks, is limited to
6 t
10 t
12 t
16 t Where t is thickness of thinner plate being connected
Minimum pitch provided in riveted steel tanks is
1.5 d
2.0 d
2.5 d
3.0 d Where d is diameter of rivets
The critical stress on a column for elastic buckling given by Euler's formula, is
fc = π²E/(I/r)²
fc = (I/r)²/ πE
fc = (I/r)/ πE
fc = π²E/(I/r)
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 - [b/{1 + 0.35 (b/a)}]
a + [b/{1 + 0.35 (b/a)}]
a - [b/{1 + 0.2 (b/a)}]
a + [b/{1 + 0.2 (b/a)}]
When the upper column does not provide full bearing area over lower column, the column splice is provided with the following assumption
Bearing plate is assumed as a short beam to transmit the axial load to the lower column section
Axial load is assumed to be taken by flanges
Load transmitted from the flanges of upper column and reactions from the flanges of lower columns are equal and form a couple
All the above
A riveted joint may experience
Shear failure
Shear failure of plates
Bearing failure
All the above
If R is the reaction on the bearing plate, the minimum moment of. inertia of the bearing stiffener provided at the support of a plate girder of overall depth D, the maximum thickness of the compression flange T, carrying total load W, is
(D²/250) × (R/W)
(D3T/250) × (R/W)
(DT/250) × (R/W)
(DT/250) × (W/R)
The external wind pressure acting on a roof depends on
Degree of permeability of roof
Slope of roof
Both (A) and (B)
None of the above
Pick up the correct statement from the following:
When the gauge distance is larger than the pitch, the failure of the section may occur in a zig-zag line
When the gauge distance is smaller than the pitch, the failure of the section may occur in a straight right angle section through the centre of rivet holes
When the gauge distance and pitch are both equal, the failure to the section becomes more likely as the diameter of the holes increases
All the above
Cold driven rivets range from
6 to 10 mm in diameter
10 to 16 mm in diameter
12 to 22 mm in diameter
22 to 32 mm in diameter
For steel members not exposed to weather, the thickness of steel should not be less than
4.5 mm
6 mm
8 mm
10 mm
Minimum thickness of web in a plate girder, when the plate is accessible and also exposed to weather, is
5 mm
6 mm
8 mm
10 mm
The heaviest I-section for same depth is
ISMB
ISLB
ISHB
ISWB
According to IS: 800, in the Merchant Rankine formula the value of imperfection index (n) is
1.0
1.4
1.8
2.0
A riveted joint many experience
Tearing failure of plates
Splitting failure of plates at the edges
Bearing failure of rivets
All the above
The ratio of plastic section modulus to elastic section modulus
Is equal to 1
Is always less than 1
Is always greater than 1
Can be less than 1
The effective length of a weld, is taken as the actual length
Minus the size of weld
Minus twice the size of weld
Plus the size of weld
Plus twice the size of weld