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Q1. | Independent displacement components at each joint of a rigid-jointed plane frame are |

A. | three linear movements [Wrong Answer] |

B. | two linear movements and one rotation [Correct Answer] |

C. | one linear movement and two rotations [Wrong Answer] |

D. | three rotations [Wrong Answer] |

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Explanation:-
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⇒ 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

⇒ For strengthening a 50 m long and 5 m high straight compound wall built in brick work, which one of the following would be most suitable?

providing buttresses at certain intervals

providing a deeper foundation

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⇒ 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

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0.20 Wl

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⇒ The truss can be analysed by the methods of joints when the number of unknown at a joint is equal to

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4

⇒ The width of the analogous column in the method of column analogy is

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1/EI

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None of the above

⇒ 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

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m - r + 2j

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⇒ In moment distribution method the sum of distribution factors of all the members meeting at any joint is always

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⇒ If in a rigid-jointed space frame, (6m + r) < 6j, then the frame is

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none of the above

⇒ In the displacement method of structural analysis, the basic unknowns are

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⇒ Degree of static indeterminacy of a rigid-jointed plane frame having 15 members, 3 reaction components and 14 joints is

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⇒ Independent displacement components at each joint of a rigid-jointed plane frame are

three linear movements

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one linear movement and two rotations

three rotations

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Flexibility method

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