845 kg/cm2
945 kg/cm2
1025 kg/cm2
1500 kg/cm2
B. 945 kg/cm2
η = p/p - d
η = p/p + d
η = p - d/p
η = p + d/p
180 t
220 t
230 t
270 t
d/250 for structural steel
d/225 for high tensile steel
Both (c) and (b)
Neither (a) nor (b)
45° and 45°
30° and 60°
40° and 50°
20° and 70°
Bending stress in rivets is accounted for
Riveted hole is assumed to be completely filled by the rivet
Stress in the plate in not uniform
Friction between plates is taken into account
Decrease in h/t ratio
Increase in h/t ratio
Decrease in thickness
Increase in height Where 'h' is height and t is thickness
Load/Shear strength of a rivet
Load/Bearing strength of a rivet
Load/Tearing strength of a rivet
Load/Rivet value
d = (M/fb)
d = 1.5 (M/fb)
d = 2.5 (M/fb)
d = 4.5 (M/fb)
Length of the column
Strength of the column
Cross-sectional area of the column
None of these
Minimum weight
Minimum depth
Maximum weight
Minimum thickness of web
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
Sway bracing
Portal bracing
Top lateral bracing
Bottom lateral bracing
Minimum dimension
Average dimension
Maximum dimension
None of the above
Continuous member
Discontinuous single angle strut
Discontinuous double angle strut
All the above
1 : 1
1 : √2
√2 : 1
2 : 1
180
200
250
300
Only shear stresses
Only tensile stresses
Both (A) and (B)
None of the above
fs =FQ/It
fs =Ft/IQ
fs =It/FQ
fs =IF/Qt
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)}]
1.23 m above the rail level
1.50 m above the rail level
1.83 m above the rail level
2.13 m above the rail level
Prohibited
Not prohibited
Permitted at start and end of lacing system only
Permitted between two parts of the lacing
Plus the area of the rivet holes
Divided by the area of rivet holes
Multiplied by the area of the rivet holes
None of these
Line of action of the resultant of two column loads, is made to coincide with the centre of gravity of the base of the footing
Trapezoidal shape is used for the base footing
Projections of beams on either side in lower tier are such that bending moments under columns are equal
All the above
Overall depth
Clear depth
Effective depth
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
16 kg/cm2
18 kg/cm2
20 kg/cm2
22 kg/cm2
Least strength of a riveted joint to the strength of solid plate
Greatest strength of a riveted joint to the strength of solid plate
Least strength of a riveted plate to the greatest strength of the riveted joint
All the above
2 d
4 d
6 d
8 d
Fully by direct bearing
Fully through fastenings
50% by direct bearing and 50% through fastenings
75% by direct bearing and 25% through fastenings
50 t
85 t
200 t
250 t Where t is thickness of web