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Quiz 2
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Q.1
The number of independent displacement components at each joint of a rigid-jointed space frame is
1
2
3
6
Q.2
The slenderness effect of a wall is considered if the effective height of the wall exceeds the thickness
8 times
10 times
12 times
16 times
Q.3
The test strength of the sample is taken as the average of the strength of
2 specimens
3 specimens
4 specimens
5 specimens
Q.4
When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that
the head of the load reaches the section
the tail of the load reaches the section
the load position should be such that the section divides it equally on both sides
the load position should be such that the section divides the load in the same ratio as it divides the span
Q.5
In the displacement method of structural analysis, the basic unknowns are
displacements
force
displacements and forces
none of the above
Q.6
The number of independent equations to be satisfied for static equilibrium in a space structure is
2
3
4
6
Q.7
Independent displacement components at each joint of a rigid-jointed plane frame are
three linear movements
two linear movements and one rotation
one linear movement and two rotations
three rotations
Q.8
The thickness of the rectangular plate for the cap or base of a solid round steel columns, is calculated from the formula
t = √[(9W/16 fbct) × D/(D -d)] where ‘d’ is
The reduced diameter of the column
The dimension of the base
The diameter of the base
The diameter of the top
Q.9
While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of
zero length
infinite length
zero moment of inertia
none of the above
Q.10
If in a pin-jointed plane frame (m + r) > 2j, then the frame is
(Where ‘m’ is number of members, ‘r’ is reaction components and ‘j’ is number of joints)
Stable and statically determinate
Stable and statically indeterminate
Unstable
None of the above
Q.11
A rigid-jointed plane frame is stable and statically determinate if (where m is number of members, r is reaction components and j is number of joints)
(m + r) = 2j
(m + r) = 3j
(3m + r) = 3j
(m + 3r) = 3j
Q.12
A pin-jointed plane frame is unstable if (where m is number of members, r is reaction components and j is number of joints)
(m + r)<2j
m + r = 2j
(m + r)>2j
none of the above
Q.13
The three moments equation is applicable only when
The beam is prismatic
There is no settlement of supports
There is no discontinuity such as hinges within the span
The spans are equal
Q.14
The Castigliano's second theorem can be used to compute deflections
In statically determinate structures only
For any type of structure
At the point under the load only
For beams and frames only
Q.15
For a symmetrical two hinged parabolic arch, if one of the supports settles horizontally, then the horizontal thrust
is increased
is decreased
remains unchanged
becomes zero
Q.16
If the main reinforcement of the slab is parallel to a T-beam, the transverse reinforcement at mid span of the slab is provided at least __________ of main reinforcement.
40 %
50 %
60 %
70 %
Q.17
The deformation of a spring produced by a unit load is called
stiffness
flexibility
influence coefficient
unit strain
Q.18
Muller Breslau’s principle for obtaining influence lines is applicable to
i) trusses
ii) statically determinate beams and frames
iii) statically indeterminate structures, the material of which is elastic and follows Hooke’s law
iv) any statically indeterminate structure
The correct answer is
(i), (ii) and (iii)
(i), (ii) and (iv)
(i) and (ii)
only (i)
Q.19
In the slope deflection equations, the deformations are considered to be caused by
i) bending moment
ii) shear force
iii) axial force
The correct answer is
only (i)
(i)and(ii)
(ii) and (iii)
(i), (ii) and (iii)
Q.20
Select the correct statement
Flexibility matrix is a square symmetrical matrix
Stiffness matrix is a square symmetrical matrix
both (a) and (b)
none of the above
Q.21
Degree of kinematic indeterminacy of a pin-jointed plane frame is given by
2j – r
j – 2r
3j – r
2j + r
Q.22
If there are m unknown member forces, r unknown reaction components and j number of joints, then the degree of static indeterminacy of a pin-jointed plane frame is given by
m + r + 2j
m – r + 2j
m + r – 2j
m + r – 3j
Q.23
If the specified thickness of a footing is 100 cm, the depth of the form work may be tolerated from
-2 mm to +2 mm
-3 mm to +3 mm
-4 mm to +4 mm
-5 mm to +5 mm
Q.24
For the stability of a structural part, the weight or anchorage should be
1.2 times the minimum overturning moment due to dead load
1.4 times the minimum overturning moment due to dead load
Sum of (a) and (b)
None of these
Q.25
The width of the analogous column in the method of column analogy is
2/EI
1/EI
1/2 EI
1/4 EI
Q.26
Bending moment at any section in a conjugate beam gives in the actual beam
slope
curvature
deflection
bending moment
Q.27
A load W is moving from left to right support on a simply supported beam of span T. The maximum bending moment at 0.4 1 from the left support is
0.16 Wl
0.20 Wl
0.24 Wl
0.25 Wl
Q.28
Effects of shear force and axial force on plastic moment capacity of a structure are respectively to
increase and decrease
increase and increase
decrease and increase
decrease and decrease
Q.29
The principle of virtual work can be applied to elastic system by considering the virtual work of
Internal forces only
External forces only
Internal as well as external forces
None of the above
Q.30
Pick up the correct statement for the web stiffeners.
Vertical stiffeners are spaced at a distance not greater than 1.5 d and not less than 0.33 d
d is the distance between flange angles or the clear distance between flanges
For horizontal stiffeners, d is the clear distance between the horizontal stiffener and the tension flange
All the above
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