0
0.5
Between 0.5 and 1.0
1.0
C. Between 0.5 and 1.0
t = √(21/64)
t = √(64/21)
t = 21/64
t = 64/21
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
Channels are placed back to back
Channel flanges are kept inward
Channel flanges are kept outward
None of these
0.15 d
0.22 d
0.33 d
0.44 d
95.0 MPa on net area
105.5 MPa on net area
105.5 MPa on gross area
150.0 MPa on gross area
25 cm
50 cm
75 cm
100 cm
Minus the size of weld
Minus twice the size of weld
Plus the size of weld
Plus twice the size of weld
Mitre weld
Concave weld
Convex weld
All the above
Tacking rivets are used if the minimum distance between centres of two adjacent rivets exceeds 12 t or 200 mm, whichever is less
Tacking rivets are not considered to calculate stress
Tacking rivets are provided throughout the length of a compression member composed of two components back to back
All the above
Material cost of a rivet is higher than that of a bolt
Tensile strength of a bolt is lesser than that of a rivet
Bolts are used as a temporary fastening whereas rivets are used as permanent fastenings
Riveting is less noisy than bolting
Bearing stress
Working stress
Tensile stress
Compressive stress
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
Yield stress to working stress
Tensile stress to working stress
Compressive stress to working stress
Bearing stress to working stress
Only (i)
Both (i) and (ii)
Both (i) and (iii)
All (i), (ii) and (iii)
Weight per metre and depth of its section
Depth of section and weight per metre
Width of flange and weight per metre
Weight per metre and flange width
The nominal diameter of a rivet is its diameter before driving
The gross diameter of a rivet is the diameter of rivet hole
The gross area of a rivet is the cross-sectional area of the rivet hole
The diameter of a rivet hole is equal to the nominal diameter of the rivet plus 1.5 mm
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)}]
4 mm
6 mm
8 mm
10 mm
6 to 10 mm in diameter
10 to 16 mm in diameter
12 to 22 mm in diameter
22 to 32 mm in diameter
Stringers
Trimmers
Girts
Lintels
The neutral axis of the section
2/3rd of the depth of the neutral axis from the compression flange
2/5th of the depth of the neutral axis from the compression flange
2/5th of the height of the neutral axis from tension flange
Only (i)
Only (iii)
(i) and (ii)
(ii) and (iii)
Simply design
Semi-rigid design
Fully rigid design
None of these
To spread the column load over a larger area
To ensure that intensity of bearing pressure between the column footing and soil does not exceed permissible bearing capacity of the soil
To distribute the column load over soil through the column footing
All the above
1.5
1.6
1.697
None of these
Fully by direct bearing
Fully through fastenings
50% by direct bearing and 50% through fastenings
75% by direct bearing and 25% through fastenings
45° and 45°
30° and 60°
40° and 50°
20° and 70°
150
180
250
350
4 mm
5 mm
6 mm
8 mm
Overall depth
Clear depth
Effective depth
None of these