1.
Portal frames are frequently used in a building to:
A.
Transfer vertical forces
B.
Transfer moment
C.
Transfer horizontal forces
D.
It is a zero it is used to transfer horizontal force applied at top of frame to
foundation
Answer: C
2.
Which of the following supports are not used in portals?
A.
Fixed
B.
Pin
C.
partial
D.
Roller
Answer: D
3.
Where point of inflection located in top girder in a pin supported portal
frame?
A.
At one of the ends
B.
At both ends
C.
At center of beam
D.
Inflection point is not present
Answer: C
4.
What is the degree of indeterminacy of a fixed supported portal frames?
A.
1
B.
2
C.
3
D.
4
Answer: C
5.
What is the relation between shear at the base of each columns of a portal
frame which is fixed supported (given length of columns are equal)?
A.
They are equal
B.
One is double of other
C.
One is triple of other
D.
Depends upon magnitude of load applied
Answer: A
6.
Cantilever method is based upon same action as a long cantilever beam subjected
to a
A.
Transverse load
B.
Axial load
C.
Moment
D.
No load
Answer: A
7.
Where does neutral axis of column lie?
A.
Vertical plane
B.
Horizontal plane
C.
Both of them
D.
Neither of them
Answer: B
8.
In Gaussian elimination method, original equations are transformed by using
_____________
A.
Column operations
B.
Row Operations
C.
Mathematical Operations
D.
Subset Operation
Answer: B
9. Which
of the following step is not involved in Gauss Elimination Method?
A.
Elimination of unknowns
B.
Reduction to an upper triangular system
C.
Finding unknowns by back substitution
D.
Evaluation of cofactors
Answer: D
10.
Solve the equations using Gauss Jordan method.
x
+ 2y + 6z = 22
3x
+ 4y + z = 26
6x
- y - z = 19
A.
x = 4, y = 3, z = 2
B.
x = 3, y = 4, z = 2
C.
x = 3, y = 2, z = 4
D.
x = 4, y = 6, z = 2
Answer: D
11.
Which of the following methods is used for obtaining the inverse of matrix?
A.
Gauss Seidel method
B.
Newton Raphson method
C.
Gauss Jordan method
D.
Secant Method
Answer: C
12. If in planar system, X parts/members are there with Y no. of forces, then condition for statically determinacy is
A.
Y < 3X
B.
Y > 3X
C.
Y = 3X
D.
None of the mentioned
Answer: C
13. If 4 reactions are acting on a beam, then the system is
A.
Unstable & indeterminate
B.
Stable & indeterminate
C.
Stable & determinate
D.
Can’t say
Answer: D
14 The number of equilibrium equations for the
following space frame is ____
A. 1
B. 3
C. 6
D. 4
Answer: C
15. External Static Indeterminacy of the following
beam is _______
A. 2
B. 4
C. 3
D. 0
Answer: B
16.
What is kinematic indeterminacy for the given figure without considering axial
deformation?
A. 0
B.
2
C.
4
D.
6
Answer: B
17.
Approximate analysis is done on a
A.
Determinate structures
B.
Indeterminate structures
C.
Determinate and indeterminate structures
D.
Depends upon load applied
Answer: A
18.
Points of inflection can be considered as
A.
Pin support
B.
Roller support
C.
Link support
D.
Pin
Answer: D
19.
Who of the following initially developed force method?
A.
Muller
B.
Breslau
C.
Mohr
D.
James clerk Maxwell
Answer: D
20.
Flexibility coefficients are used in which of the following method?
A.
force method
B.
displacement method
C.
both force and displacement method
D.
virtual force method
Answer: A
21.
Which of the following is the correct equation for Degree of Static
Indeterminacy of a truss?
A.
(m+r) -2j
B.
(m+r) + 2j
C.
(m-r)-2j
D.
(m-r) +2j
Answer: A
22.
Stiffness of the end A if the far end B is fixed is ____
A.
EI/L
B.
2EI/L
C.
3EI/L
D.
4EI/L
Answer: D
23.
In displacement method of structural analysis, the basic unknowns are
A.
displacements
B.
force
C.
Displacements and forces
D.
None of the above
Answer: A
24.
The deformation of spring caused by unit load is called as
A.
stiffness
B.
flexibility
C.
Influence coefficient
D.
Unit strain
Answer: B
25.
The kinematic indeterminacy of the plane truss shown in the figure is
A.
11
B.
8
C.
3
D.
0
Answer: A
26. Find determinant of the following matrix [3 4 1; 0 -1 2; 5 -2 6]
A.
19
B.
29
C.
39
D.
49
Answer: C
27.
Transpose of Matrix A [1 5 7 8 ] is said
to be
A.
Column matrix
B.
Row matrix
C.
Square matrix
D.
Identity matrix
Answer: A
28.
The stiffness matrix of a beam element is given as
A.
a
B.
b
C.
c
D.
d
Answer: C
29. For the beam shown below, the stiffness coefficient K22 can be written as
A.
6EI/L2
B.
12EI/L3
C.
3EI/L
D.
EI/6L3
Answer: B
30.
The stiffness coefficient Kij indicates
A.
Force at i due to unit deformation at j
B.
Deformation at j due to unit force at i
C.
Deformation at i due to unit force at j
D.
Force at j due to unit deformation at i
Answer: A
31.
If in a pin-jointed plane frame (m + r) > 2j, then the frame is
A.
Stable and statically determinate
B.
Stable and statically indeterminate
C.
Unstable
D.
None of the above
Answer: B
32.
Principle of superposition is applicable when
A.
Deflections are linear functions of applied forces
B.
Material obeys Hooke’s law
C.
The action of applied forces will be affected by small deformations of the
structure
D.
None of the above
Answer: A
33.
The Castigliano’s second theorem can be used to compute deflections
A.
In statically determinate structures only
B.
For any type of structure
C.
At the point under the load only
D.
For beams and frames only
Answer: B
34.
For stable structures, one of the important properties of flexibility and
stiffness matrices is that the elements on the main diagonal
1.
of a stiffness matrix must be positive
2.
of a stiffness matrix must be negative
3.
of a flexibility matrix must be positive
4.
of a flexibility matrix must be negative
(1)
and (3)
(2)
and (3)
(1)
and (4)
(2)
and (4)
Answer: A
35.
Which of the following methods of structural analysis is a force method?
A.
Slope deflection method
B.
Column analogy method
C.
Moment distribution method
D.
None of the above
Answer: B
36.
Which of the following methods of structural analysis is a force method?
A.
Slope deflection method
B.
Column analogy method
C.
Moment distribution method
D.
None of the above
Answer: B
37.
Which of the following is not the displacement method?
A.
Equilibrium method
B.
Column analogy method
C.
Moment distribution method
D.
Kani’s method
Answer: B
38.
If in a rigid-jointed space frame, (6m + r) < 6j, then the frame is
A.
Unstable
B.
Stable and statically determinate
C.
Stable and statically indeterminate
D.
None of the above
Answer: A
39.
To generate the jth column of the flexibility matrix
A.
A unit force is applied at coordinate j and the displacements are calculated at
all coordinates
B.
A unit displacement is applied at coordinate j and the forces are calculated at
all coordinates
C.
A unit force is applied at coordinate j and the forces are calculated at all
coordinates
D.
None of the above
Answer: A
40.
In the displacement method of structural analysis, the basic unknowns are
A.
Displacements
B.
Force
C.
Displacements and forces
D.
None of the above
Answer: A
41.
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)
A.
(m + r) = 2j
B.
(m + r) = 3j
C.
(3m + r) = 3j
D.
(m + 3r) = 3j
Answer: C
42.
Degree of kinematic indeterminacy of a pin-jointed plane frame is given by
A.
2j – r
B.
j – 2r
C.
3j – r
D.
2j + r
Answer: A
43. The number of independent equations to be
satisfied for static equilibrium of a plane structure is
A. 1
B. 2
C. 3
D. 6
Answer: C
44. Select the correct statement
A.
Flexibility matrix is a square symmetrical matrix
B.
Stiffness matrix is a square symmetrical matrix
C.
Both (A) and (B)
D.
None of the above
Answer: C
45.
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
A.
(i) and (iii)
B.
(ii) and (iii)
C.
(i) and (iv)
D.
(ii) and (iv)
Answer: D
46.
The number of independent displacement components at each joint of a
rigid-jointed space frame is
A.
Three linear movements
B.
Two linear movements and one rotation
C.
One linear movement and two rotations
D.
Three rotations
Answer: B
47.
Degree of static indeterminacy of a rigid-jointed plane frame having 15
members, 3 reaction components and 14 joints is
A.
2
B.
3
C.
6
D.
8
Answer: C
48.
The deformation of a spring produced by a unit load is called
A.
Stiffness
B.
Flexibility
C.
Influence coefficient
D.
Unit strain
Answer: B
49.
How many constraints are there in a fixed support?
A.
2
B.
3
C.
6
D.
Can’t say
Answer: D
50.
Moment at a hinge will be
A.
Infinity
B.
Zero
C.
Depends upon acting forces
D.
None of the above
Answer: B
51.
A surface structure has
A.
Small thickness
B.
Large thickness
C.
Moderate thickness
D.
Arbit thickness
Answer: A
52.
For the validity of principle of superposition, materials should behave in
which manner?
A.
linear-elastic
B.
non-linear-elastic
C.
Non-linear- inelastic
D.
Linear- inelastic
Answer: A
53.
A roller support is shown in figure identify the true free body diagram
A.
i
B.
ii
C.
iii
D.
iv
Answer: B
References
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