Equilibrium and mechanism conditions
Equilibrium and plastic moment conditions
Mechanism and plastic moment conditions
Equilibrium condition only
B. Equilibrium and plastic moment conditions
The effective span
1.25 times the effective span
1.50 times the effective span
2.0 times the effective span
√(fbt² + fc²)
√(fbt² + ½fc²)
√(fbt² + 3fc²)
√(fbt² - 3fc²)
Bearing and shear
Bending and shear
Bearing and bending
Bearing, shear and bending
L
0.67 L
0.85 L
1.5 L
1.00 mm thickness of packing
1.50 mm thickness of packing
2.0 mm thickness of packing
2.50 mm thickness of packing
Overall depth
Clear depth
Effective depth
None of these
L
0.67 L
0.85 L
1.5 L
Ap = Zreqr + Zbeam/h
Ap = Zreqr + Zbeam/A
Ap = Zreqr × Zbeam/h
Ap = Zreqr - Zbeam/h
Shear
Tension
Compression
All the above
Mitre weld
Concave weld
Convex weld
All the above
To simplify the transverse connections
To minimise lacing
To have greater lateral rigidity
All the above
r = I/A
r = √(I/A)
r = (I/A)
r = √(A/I)
Mean probable design life of structures
Basic wind speed
Both (A) and (B)
None of the above
Axial loading
Transverse loading
Axial and transverse loading
None of these
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
1420 kg/cm2
1500 kg/cm2
2125 kg/cm2
1810 kg/cm2
1.5
1.6
1.697
None of these
45° and 45°
30° and 60°
40° and 50°
20° and 70°
d = (M/fb)
d = 1.5 (M/fb)
d = 2.5 (M/fb)
d = 4.5 (M/fb)
Is zero
Is equal to its radius of gyration
Is supported on all sides throughout its length
Is between the points of zero moments
1000 litre
1650 litre
1950 litre
2450 litre
The ends of a strut, are connected together with two rivets
The members of strut will have at least two connections spaced equidistant in their length
The members when separated back-to-back, the connecting rivets should pass through solid washer or packing
All the above
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
B = b + 25 mm
B = b + 50 mm
B = b + 75 mm
B = b + 100 mm
Reduced by 25 %
Reduced by 33.3%
Increased by 25 %
Increased by 33.3 %
M = WL/100
M = WL/200
M = WL/300
M = WL/400
2 t
4 t
6 t
8 t
60
70
80
100
d/4
d/3
d/2
2d/3 Where d is the distance between flange angles
The section
The section plus area of rivet holes
The section minus area of rivet holes
The section multiplied by the area of the rivet hole