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