Structural Analysis free Model online Test2

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1. Bending moment at any section in a conjugate beam gives in the actual beam
slope	curvature
deflection	bending moment

2. 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

3. 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

4. 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

5. The maximum bending moment due to a train of wheel loads on a simply supported girder
always occurs at centre of span	always occurs under a wheel load
never occurs under a wheel load	none of the above

6. 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

7. 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

8. When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel load occurs when
the centre of gravity of the load system is midway between the centre of span and wheel load under consideration	the centre of span is midway between the centre of gravity of the load system and the wheel load under consideration
the wheel load under consideration is midway between the centre of span and the centre of gravity of the load system	none of the above

9. Which of the following is not the displacement method ?
Equilibrium method	Column analogy method
Moment distribution method	Kani's method

10. 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

11. 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

12. 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

13. 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

14. In the displacement method of structural analysis, the basic unknowns are _____.
displacements	force
displacements and forces	none of the above

15. The fixed support in a real beam becomes in the conjugate beam a
roller support	hinged support
fixed support	free end

16. The width of the analogous column in the method of column analogy is _____.
2/EI	1/EI
1/2 EI	1/4 EI

17. 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
Option C	0.005mm

18. The deformation of a spring produced by a unit load is called _____.
stiffness	flexibility
influence coefficient	unit strain

19. 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

20. 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

Structural Analysis Quiz practies questions test1

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1. The number of independent equations to be satisfied for static equilibrium of a plane structure is _____.
1	2
3	6

2. 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

3. Number of unknown internal forces in each member of a rigid jointed plane frame is ______.
1	2
3	6

4. Degree of static indeterminacy of a rigid-jointed plane frame having 15 members, 3 reaction components and 14 joints is _____.
2	3
6	8

5. Degree of kinematic indeterminacy of a pin-jointed plane frame is given by ______.
2j - r	j - 2r
3j - r	2j + r

6. 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

7. If in a pin-jointed plane frame (m + r) > 2j, then the frame is _____.
stable and statically determinate	stable and statically indeterminate
unstable	none of the above

8. A pin-jointed plane frame is unstable if _____.
(m + r)<2j	m + r = 2j
(m + r)>2j	none of the above

9. A rigid-jointed plane frame is stable and statically determinate if _____.
(m + r) = 2j	(m + r) = 3j
(3m + r) = 3j	(m + 3r) = 3j

10. The number of independent equations to be satisfied for static equilibrium in a space structure is _____.
2	3
4	6

11. The degree of static indeterminacy of a pin-jointed space frame is given by _____.
m + r - 2j	m + r - 3j
3m + r - 3j	m + r + 3j

12. The degree of static indeterminacy of a rigid-jointed space frame is _____.
m + r - 2j	m + r - 3j
3m + r - 3j	6m + r - 6j

13. The degree of kinematic indeterminacy of a pin-jointed space frame is _____.
2j-r	3j-r
j-2r	j-3r

14. The number of independent displacement components at each joint of a rigid-jointed space frame is _____.
1	2
3	6

15. 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

16. 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

17. 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

18. 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

19. 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

20. The carryover factor in a prismatic member whose far end is fixed is _____.
0	1/2
3/4	1

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