Large moment of inertia with less cross-sectional area
Large moment of resistance as compared to other section
Greater lateral stability
All the above
D. All the above
The minimum pitch should not be less than 2.5 times the gross diameter of the river
The minimum pitch should not be less than 12 times the gross diameter of the rivet
The maximum pitch should not exceed 10 times the thickness or 150 mm whichever is less in compression
All the above
A girder
A floor beam
A main beam
All the above
< 19
< 24
> 19
> 24
Load/Shear strength of a rivet
Load/Bearing strength of a rivet
Load/Tearing strength of a rivet
Load/Rivet value
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
Section is of double open channel form with the webs not less than 40 mm apart
Overall depth and width of the steel section do not exceed 750 and 450 mm respectively
Beam is solidly encased in concrete with 10 mm aggregate having 28 days strength 160 kg/cm2
All the above
Which is more than 3 m long
Whose lateral dimension is less than 25 cm
Which is free at its top
Which has a ratio of effective length and least lateral dimension more than 15
1.33 d
1.25 d
1.5 d
1.75 d Where d is the distance between flange angles
The slenderness ratio of lacing bars for compression members should not exceed 145
The minimum width of lacing bar connected with rivets of nominal diameter 16 mm, is kept 50 mm
The minimum thickness of a flat lacing bar is kept equal to onefortieth of its length between inner end rivets
All the above
8 t
16 t
24 t
32 t
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
t < 1/40 th length between inner end rivets
t < 1/50 th length between inner end rivets
t < 1/60 th length between inner end rivets
t < 1/70 th length between inner end rivets
Two times the weld size
Four times the weld size
Six times the weld size
Weld size
Cross-sectional area of column/Radius of gyration
Radius of gyration/Cross-sectional area of column
Cross-sectional area of column/Section modulus of the section
Section modulus of the section/Cross-sectional area of column
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
Cold rivet before driving
Rivet after driving
Rivet hole
None of these
Prohibited
Not prohibited
Permitted at start and end of lacing system only
Permitted between two parts of the lacing
B = b + 25 mm
B = b + 50 mm
B = b + 75 mm
B = b + 100 mm
1 cm
1.5 cm
2 cm
2.5 cm
1500 kg/cm2
1890 kg/cm2
2025 kg/cm2
2340 kg/cm2
2 d
4 d
6 d
8 d
0.55 Aw.fy
0.65 Aw.fy
0.75 Aw.fy
0.85 Aw.fy Where, Aw = effective cross-sectional area resisting shear fy = yield stress of the steel
Moment of inertia/Radius of gyration
Effective length/Area of cross-section
Radius of gyration/Effective length
Radius of gyration/ Area of cross-section
5 %
10 %
15 %
20 %
Deck type
Through type
Half through type
Double deck type
Axial force in rafter
Shear force in rafter
Deflection of rafter
Bending moment in rafter
Bending moment
Moment of resistance
Flexural stress moment
None of these
Filler plates are provided with column splice
Bearing plates are provided with column splice
Filler plates and bearing plates are provided with column splice
None of these
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
50 %
60 %
70 %
80 %