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Civil Engineering Steel Structures MCQ
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1. The successful introduction of _____ bolts resulted into replacement of rivets.
HSFG
Turned
Black
All of the above
2. In roof trusses bracings should be provided at top chord level in the
last but one end panel using angles
last but one panel using flats
end panels using angles
end panels using flats
3. Minimum edge distance specified by the code should be maintained to avoid
rupture of plate
crushing of plate
shearing of plate
both b and c
4. Rolled steel tubes are referred by their
average diameter
outer radius
inner diameters
outer diameters
5. For connecting circular tubes in tension, the best connection is by
using HSFG bolts
welding
riveting
bolting
6. Maximum width of steel plates manufactured are
1 m
1.5 m
2.5 m
3.5 m
7. In a compression member of a truss, consisting of double angle, tacking bolts should be provided at a distance not more than
500 mm
600 mm
1000 mm
1200 mm
8. For compression members most preferable I-section is
heavy beam
medium beam
junior beam
light beam
9. In designing connection between web plate and flange plate, shear stress is calculated using moment of inertia of
one flange plate only
half the web plate and a flange plate
web plate and flange plates
web plate only
10. Which one of the following is not a variable action?
earthquake loads
handling erection loads
self weight
wind loads
11. Which one of the following is not an advantage of bolted connection over welded connection?
alterations in connections can be made easily in the field
making joint is noiseless
connection can be made easily
accommodates minor discrepancies in dimensions
12. When the two columns to be spliced are of slightly different size
bearing plates are used
milled end and bearing plated are used
filler plates are used
milled plates are used
13. According to tension field method as web begins to buckle
web resists only diagonal tension
horizontal component of diagonal compression in web due to shear is restricted by flange
vertical component of diagonal compression in web due to shear is resisted by vertical stiffener
all the above statements are correct
14. Gantry girders are designed to resist
lateral and longitudinal loads
lateral, longitudinal and vertical loads
longitudinal loads and vertical loads
lateral loads
15. In the virtual work method, the virtual quantity is
moment
slope
load
displacement
16. Hudson's formula gives the dead weight of a truss bridge as a function of
top chord area
heaviest axle load of engine
effective span of bridge
bottom chord area
17. The weakest plane in a filler weld is
the one normal to the throat
the one along the throat
a side normal to the force
a side parallel to the force
18. The use of tie plates in laced columns is
permitted between two parts of the lacing
permitted at start and end of lacing system only
prohibited
not prohibited
19. Which of the following types of riveted joint is free from bending stresses?
butt joint with single cover plate
butt joint with double cover plates
lap joint
none of these
20. Load carrying capacity of compression member depends upon
end condition
slenderness ratio
cross sectional area
All of the above
21. The stress at which a material fractures under large number of reversals of stress is called
residual stress
ultimate strength
endurance limit
creep
22. The beam sections in which the extreme fibre in compression can yield stress, but cannot develop the plastic moment of resistance, due to local buckling are classified as
compact sections
semi-compact sections
slender sections
plastic sections
23. Minimum thickness of rolled steel flats available is
5 m
6 m
8 m
10 m
24. The code does not suggests reduction factor for shear capacity in the case
if the joint is too long
if number of bolts exceeds a specified number
if the grip length is large
if packing plate thickness exceeds 6 mm
25. For HSFG bolts, partial safety factor designed at service load and at ultimate load are respectively
1.2 and 1.4
1.10 and 1.25
1.25 and 1.4
1.25 and 1.5
26. Maximum spacing of lacing bars shall be such that the maximum slenderness of the main member between consecutive lacing connection is not more than
20
30
40
50
27. Column splice plates may be assumed to act as columns with slenderness ratio
zero
20
30
40
28. Bolts are most suitable to carry
axial tension
shear and bending
bending
shear
29. Economical depth of a plate girder corresponds to
maximum thickness of web
maximum weight
minimum depth
minimum weight
30. For welded and double laced joints, effective length of lacing is _____ times the actual length.
0.2
0.5
0.6
0.7
31. Bending compressive and tensile stresses respectively are calculated based on
gross area in both cases
net area in both cases
net area and gross area
gross area and net area
32. A butt weld is specified by
plate thickness
penetration thickness
size of weld
effective throat thickness
33. The forces acting on the web splice of a plate girder are
axial and bending forces
shear and bending forces
axial forces
shear and axial forces
34. Steel tanks are mainly designed for
water pressure
earthquake forces
wind pressure
weight of tank
35. Lacing and battening of columns is to increase _____ of column.
section modulus
least radius of gyration
sectional area
none of the above
36. Which one of the following is not the advantage of HSFG bolt?
no slip takes place in the joint
bolts are not subjected to shearing and bearing stresses
the load transfer is by shearing stresses
less stress concentration
37. The advantage of steel structure is
speed of construction is high
quality is assured
needs less space
all the above
38. To connect members subjected to dynamic loads which one of the following type of bolts is preferable?
HSFG bolts
Turned bolts
Black bolts
Both b and c types
39. Minimum edge distance, in case of hand flame cut edges, shall not be less than _____ times bolt hole diameter.
1.5
1.7
1.9
1.10
40. If a plate with small hole is kept over another plate and the entire hole is filled with weld material, the welded joint is known as
butt weld
plug weld
fillet weld
slot weld
41. The most economical section for a compression member is
hollow circular
circular
I-shaped
rectangular
42. Which one of the following is not a flexible connection of beams?
stiffened seated connection
unstiffened seated connection
framed connection
web angle connection
43. The best arrangement to provide unified behavior in built up steel columns is by
perforated cover plates
battening
perforated cover plates
lacing
44. The capacity of the smallest pressed steel tank is
1000 litre
1650 litre
1950 litre
2450 litre
45. The moment curvature relation at a plastic hinge is
constant curvature for all moments
constant moment for all curvatures
parabolic
linear
46. A steel beam supporting loads from the floor slab as well as from wall is termed as
stringer beam
header beam
lintel beam
spandrel beam
47. Racking force on a steel railway bridge is due to
lateral movement of the train when moving on a straight track
resistance offered by the bearing to the movement at the roller end
braking effect
tractive effect of the driving wheel
48. At a fully plastic section, infinite rotation can occur at
constant plastic moment
zero moment
constant elastic moment
all of the above
49. The effective length of a fillet weld should not be less than
penetration thickness
size of weld
two times the weld thickness
plate thickness
50. A channel section has
one web two flanges
one web one flange
two webs one flange
two webs and two flanges
51. Which one of the following is not limit state of serviceability?
loss of stability
fire
corrosion
vibration
52. The effective diameter of a river is taken as
rivet hole diameter – 1.5 mm
rivet hole diameter + 1.5 mm
rivet hole diameter
nominal diameter of rivet
53. rivet hole diameter
length shown in drawing + size of weld
length shown in drawing + 2 x size of weld
length shown in drawing + 4 x size of weld
length shown in drawing
54. In the design of a connection of tension member to a gusset plate, the principle to be followed is
In the design of a connection of tension member to a gusset plate, the principle to be followed is
as large portion of it as is possible is connected
section should be compact
all the above
55. Which of the following sections should preferably be used at places where torsion occurs?
box type section
channel section
angle section
any of the above
56. The bracing provided in the plane of end posts is called
bottom lateral bracing
top lateral bracing
sway bracing
portal bracing
57. The effect of axial force and shear force on the plastic moment capacity of a section are
to decrease the plastic moment capacity in both cases
to increase the plastic moment capacity in both cases
to increase and to decrease the plastic moment respectively
to decrease and to increase the plastic moment respectively
58. Load factor is
sometimes greater than factor of safety
always greater than factor of safety
always less than factor of safety
always equal to factor of safety
59. Which of the following conditions is to be satisfied both in elastic and plastic analysis?
yield condition
equilibrium condition
mechanism condition
plastic moment condition
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