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101. |
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. (3m + r) = 3j |
102. |
In moment distribution method, the sum of distribution factors of all the members meeting at any joint is always |
A. | Zero |
B. | Less than 1 |
C. | 1 |
D. | Greater than 1 |
Answer» C. 1 |
103. |
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 |
A. | The head of the load reaches the section |
B. | The tail of the load reaches the section |
C. | The load position should be such that the section divides it equally on both sides |
D. | The load position should be such that the section divides the load in the same ratio as it divides the span |
Answer» D. The load position should be such that the section divides the load in the same ratio as it divides the span |
104. |
The width of the analogous column in the method of column analogy is |
A. | 2/EI |
B. | 1/EI |
C. | 1/2 EI |
D. | 1/4 EI |
Answer» B. 1/EI |
105. |
Muller Breslau's principle for obtaining influence lines is applicable to
|
A. | (i), (ii) and (iii) |
B. | (i), (ii) and (iv) |
C. | (i) and (ii) |
D. | Only (i) |
Answer» A. (i), (ii) and (iii) |
106. |
The degree of static indeterminacy of a rigid-jointed space frame is (Where m, r and j have their usual meanings) |
A. | m + r - 2j |
B. | m + r - 3j |
C. | 3m + r - 3j |
D. | 6m + r - 6j |
Answer» D. 6m + r - 6j |
107. |
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. 2j - r |
108. |
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. 3 |
109. |
The degree of static indeterminacy of a pin-jointed space frame is given by m r j number of joints) |
A. | m + r - 2j |
B. | m + r - 3j |
C. | 3m + r - 3j |
D. | m + r + 3j |
Answer» B. m + r - 3j |
110. |
While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of |
A. | Zero length |
B. | Infinite length |
C. | Zero moment of inertia |
D. | None of the above |
Answer» A. Zero length |
111. |
Study the following statements.
|
A. | (i) and (iii) |
B. | (ii) and (iii) |
C. | (i) and (iv) |
D. | (ii) and (iv) |
Answer» D. (ii) and (iv) |
112. |
Bending moment at any section in a conjugate beam gives in the actual beam |
A. | Slope |
B. | Curvature |
C. | Deflection |
D. | Bending moment |
Answer» C. Deflection |
113. |
The number of independent displacement components at each joint of a rigid-jointed space frame is |
A. | 1 |
B. | 2 |
C. | 3 |
D. | 6 |
Answer» D. 6 |
114. |
Independent displacement components at each joint of a rigid-jointed plane frame are |
A. | Three linear movements |
B. | Two linear movements and one rotation |
C. | One linear movement and two rotations |
D. | Three rotations |
Answer» B. Two linear movements and one rotation |
115. |
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 |
A. | m + r + 2j |
B. | m - r + 2j |
C. | m + r - 2j |
D. | m + r - 3j |
Answer» C. m + r - 2j |
116. |
The carryover factor in a prismatic member whose far end is fixed is |
A. | 0 |
B. | 1/2 |
C. | 3/4 |
D. | 1 |
Answer» B. 1/2 |
117. |
Effects of shear force and axial force on plastic moment capacity of a structure are respectively to |
A. | Increase and decrease |
B. | Increase and increase |
C. | Decrease and increase |
D. | Decrease and decrease |
Answer» D. Decrease and decrease |
118. |
The degree of kinematic indeterminacy of a pin-jointed space frame is (Where j is number of joints and r is reaction components) |
A. | 2j - r |
B. | 3j - r |
C. | j - 2r |
D. | j - 3r |
Answer» B. 3j - r |
119. |
The maximum bending moment due to a train of wheel loads on a simply supported girder |
A. | Always occurs at centre of span |
B. | Always occurs under a wheel load |
C. | Never occurs under a wheel load |
D. | None of the above |
Answer» B. Always occurs under a wheel load |
120. |
Consider the following statements:
|
A. | 1 and 4 are correct |
B. | 1 and 3 are correct |
C. | 2 and 3 are correct |
D. | 2 and 4 are correct |
Answer» A. 1 and 4 are correct |
121. |
When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel load occurs when |
A. | The centre of gravity of the load system is midway between the centre of span and wheel load under consideration |
B. | The centre of span is midway between the centre of gravity of the load system and the wheel load under consideration |
C. | The wheel load under consideration is midway between the centre of span and the centre of gravity of the load system |
D. | None of the above |
Answer» B. The centre of span is midway between the centre of gravity of the load system and the wheel load under consideration |
122. |
Castigliano's first theorem is applicable |
A. | For statically determinate structures only |
B. | When the system behaves elastically |
C. | Only when principle of superposition is valid |
D. | None of the above |
Answer» C. Only when principle of superposition is valid |
123. |
Number of unknown internal forces in each member of a rigid jointed plane frame is |
A. | 1 |
B. | 2 |
C. | 3 |
D. | 6 |
Answer» C. 3 |
124. |
The number of independent equations to be satisfied for static equilibrium in a space structure is |
A. | 2 |
B. | 3 |
C. | 4 |
D. | 6 |
Answer» D. 6 |
125. |
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? |
A. | 5 mm |
B. | 0.5 mm |
C. | 0.05 mm |
D. | 0.005 mm |
Answer» A. 5 mm |
126. |
A pin-jointed plane frame is unstable if (Where m is number of members, r is reaction components and j is number of joints) |
A. | (m + r) < 2j |
B. | (m + r) = 2j |
C. | (m + r) > 2j |
D. | None of the above |
Answer» A. (m + r) < 2j |
127. |
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. 6 |
128. |
The degree of static indeterminacy up to which column analogy method can be used is |
A. | 2 |
B. | 3 |
C. | 4 |
D. | Unrestricted |
Answer» B. 3 |
129. |
In the slope deflection equations, the deformations are considered to be caused by
|
A. | Only (i) |
B. | (i) and (ii) |
C. | (ii) and (iii) |
D. | (i), (ii) and (iii) |
Answer» A. Only (i) |
130. |
A single rolling load of 8 kN rolls along a girder of 15 m span. The absolute maximum bending moment will be |
A. | 8 kN.m |
B. | 15 kN.m |
C. | 30 kN.m |
D. | 60 kN.m |
Answer» C. 30 kN.m |
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