Moment Distribution Method MCQ with answer and solution

Concept

Historical developer of Moment Distribution Method

Formula

Hardy Cross Method (1930)

Step-by-step solution

1. Prior to computers, solving indeterminate structures required complex simultaneous algebraic equations. 2. In 1930, Professor Hardy Cross introduced an iterative displacement-based relaxation method called the Moment Distribution Method. 3. It distributed fixed-end moments iteratively based on member stiffness ratios and carry-over factors. 4. Therefore, the method was developed by Hardy Cross. Answer: D

Explanation

The Moment Distribution Method, an iterative numerical method for the structural analysis of statically indeterminate beams and frames, was published by Professor Hardy Cross in 1930.

Why the other options are wrong

A) Coulomb developed friction theory, earth pressure wedge theory, and torsion of circular shafts. B) Rankine developed classical earth pressure theory and thermodynamic cycles. C) Westergaard developed wheel load stress theory for rigid pavements.

Shortcut

Moment Distribution Method = Hardy Cross Method.

Common mistake

Confusing Hardy Cross with Rankine or Coulomb who worked on earth pressure and mechanics.