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Q.1
In moment distribution method, the sum of distribution factors of all the members meeting at any joint is always
zero
less than 1
1
greater than 1
Q.2
For a single point load W moving on a symmetrical three hinged parabolic arch of span L, the maximum sagging moment occurs at a distance x from ends. The value of x is
0.211 L
0.25 L
0.234 L
0.5 L
Q.3
If in a rigid-jointed space frame, (6m + r) < 6j, then the frame is
Unstable
Stable and statically determinate
Stable and statically indeterminate
None of the above
Q.4
Castigliano’s first theorem is applicable
for statically determinate structures only
when the system behaves elastically
only when principle of superposition is valid
none of the above
Q.5
Which of the following methods of structural analysis is a force method?
Slope deflection method
Column analogy method
Moment distribution method
None of the above
Q.6
Principle of superposition is applicable when
Deflections are linear functions of applied forces
Material obeys Hooke's law
The action of applied forces will be affected by small deformations of the structure
None of the above
Q.7
Which of the following is not the displacement method?
Equilibrium method
Column analogy method
Moment distribution method
Kani's method
Q.8
Which of the following methods of structural analysis is a displacement method?
Moment distribution method
Column analogy method
Three moment equation
None of the above
Q.9
The degree of static indeterminacy of a pin-jointed space frame is given by (where m is number of unknown member forces, r is unknown reaction components and j is number of joints)
m + r – 2j
m + r – 3j
3m + r – 3j
m + r + 3j
Q.10
The degree of static indeterminacy up to which column analogy method can be used is
2
3
4
unrestricted
Q.11
Pick up the correct statement applicable to cased columns.
Single I-beam or channels back with or without flange plates may be used
The surface and edges of the steel column should be provided a concrete cover not less than 50 mm
All the above
Q.12
In column analogy method, the area of an analogous column for a fixed beam of span L and flexural rigidity El is taken as
L/EI
L/2EI
L/3EI
L/4EI
Q.13
For under water concreting.
At least 10 percent more cement is required as compared to dry conditions
The volume of coarse aggregates shall not be less than one and half times and not more than twice that of fine aggregate
De-watering by pumping is not done or until 24 hours thereafter
All the above
Q.14
The effective and actual lengths of a cantilever are same if continuous at the support,
Unstrained against torsion at the support and free at the end
With partial restraint against torsion of the support and free at the end
Restrained against torsion at the support and free at the end
None of these
Q.15
When a uniformly distributed load, longer than the span of the girder, moves from left to right, then the maximum bending moment at mid section of span occurs when the uniformly distributed load occupies
Less than the left half span
Whole of left half span
More than the left half span
Whole span
Q.16
The carryover factor in a prismatic member whose far end is fixed is
0
1/2
3/4
1
Q.17
The degree of kinematic indeterminacy of a pin-jointed space frame is (where m, r and j have their usual meanings)
2j-r
3j-r
j-2r
j-3r
Q.18
The degree of static indeterminacy of a rigid-jointed space frame is (where m, r and j have their usual meanings)
m + r – 2j
m + r – 3j
3m + r – 3j
6m + r – 6j
Q.19
When a load crosses a through type Pratt truss in the direction left to right, the nature of force in any diagonal member in the left half of the span would
Change from compression to tension
Change from tension to compression
Always be compression
Always be tension
Q.20
Pick up the incorrect statement from the following:
The gross section of the web of rolled I-beams is the depth of the beam multiplied by the web thickness
The gross section of the web of channels is the depth of the web multiplied by its thickness
The gross section of the web of plate girders is the depth of the web plate multiplied by its thickness
None of these
Q.21
A simply supported beam deflects by 5 mm when it is subjected to a concentrated load of 10 kN at its centre. What will be deflection in a 1/10 model of the beam if the model is subjected to a 1 kN load at its centre ?
5 mm
0.5 mm
0.05 mm
0.005mm
Q.22
The deflection at any point of a perfect frame can be obtained by applying a unit load at the joint in
Vertical direction
Horizontal direction
Inclined direction
The direction in which the deflection is required
Q.23
The minimum horizontal distance between two parallel main reinforcing bars, is
The diameter of the bar if their diameters are same
The diameter of the longer bar if their diameters are unequal
5 mm more than nominal maximum size of the coarse aggregate
Greatest value of the above
Q.24
A single rolling load of 8 kN rolls along a girder of 15 m span. The absolute maximum bending moment will be
8 kN.m
15 kN.m
30 kN.m
60 kN.m
Q.25
The number of independent equations to be satisfied for static equilibrium of a plane structure is
1
2
3
6
Q.26
To generate the j th column of the flexibility matrix
a unit force is applied at coordinate j and the displacements are calculated at all coordinates
a unit displacement is applied at co-ordinate j and the forces are calculated at all coordinates
a unit force is applied at coordinate j and the forces are calculated at all coordinates
a unit displacement is applied at co-ordinate j and the displacements are calculated at all co-ordinates
Q.27
The effective length of lacing is the distance
Between the inner end rivets of the bar for single lacing
0.7 of the distance between the inner end rivets of the bar for double lacing
Between the inner ends of effective lengths of welds connecting the members
All the above
Q.28
For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust
Is increased
Is decreased
Remains unchanged
Becomes zero
Q.29
For stable structures, one of the important properties of flexibility and stiffness matrices is that the elements on the main diagonal
(i) Of a stiffness matrix must be positive
(ii) Of a stiffness matrix must be negative
(iii) Of a flexibility matrix must be positive
(iv) Of a flexibility matrix must be negative
The correct answer is
(i) and (iii)
(ii) and (iii)
(i) and (iv)
(ii) and (iv)
Q.30
Study the following statements.
i) The displacement method is more useful when degree of kinematic indeterminacy is greater than the degree of static indeterminacy.
ii) The displacement method is more useful when degree of kinematic indeterminacy is less than the degree of static indeterminacy.
iii) The force method is more useful when degree of static indeterminacy is greater than the degree of kinematic indeterminacy.
iv) The force method is more useful when degree of static indeterminacy is less than the degree of kinematic indeterminacy.
The correct answer is
(i) and (iii)
(ii) and (iii)
(i) and (iv)
(ii) and (iv)
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