Question 1

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

Accepted Answer

Both the flexibility matrix and the stiffness matrix are square symmetrical matrices. The stiffness matrix represents the relationship between nodal forces and displacements in a structural system, and it is inherently symmetrical due to the principle of reciprocal displacements. Similarly, the flexibility matrix, which is the inverse of the stiffness matrix, is also square and symmetrical, representing the relationship between displacements and forces.

Question 2

Bending moment at any section in a conjugate beam gives in the actual beam
A)slope
B)curvature
C)deflection
D)bending moment

Accepted Answer

The bending moment at any section in a conjugate beam represents the deflection at the corresponding section in the actual beam.

Question 3

The number of independent displacement components at each joint of a rigid-jointed space frame is
A)1
B)2
C)3
D)6

Accepted Answer

A rigid-jointed space frame allows for three translations and three rotations at each joint, totaling six independent displacement components.

Quiz 1: Structural Analysis Principles and Methods

Select the correct statement

Bending moment at any section in a conjugate beam gives in the actual beam

The number of independent displacement components at each joint of a rigid-jointed space frame is