Top 150+ Solved Structural Analysis 1 MCQ Questions Answer
Q. The degree of static indeterminacy of a pin-jointed space frame is given bym r j number of joints)
a. m + r - 2j
b. m + r - 3j
c. 3m + r - 3j
d. m + r + 3j
Q. 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
Q. 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)
Q. Bending moment at any section in a conjugate beam gives in the actual beam
a. Slope
b. Curvature
c. Deflection
d. Bending moment
Q. 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
Q. 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
Q. 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
Q. 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
Q. 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
Q. Consider the following statements:Sinking of an intermediate support of a continuous beam1. Reduces the negative moment at support.2. Increases the negative moment at support.3. Reduces the positive moment at support.4. Increases the positive moment at the centre of span.Of these 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
Q. 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
Q. 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