Structural Analysis
The Castigliano's second theorem can be used to compute deflections

For any type of structure
At the point under the load only
In statically determinate structures only
For beams and frames only

ANSWER DOWNLOAD EXAMIANS APP

Structural Analysis
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

the load position should be such that the section divides the load in the same ratio as it divides the span
the tail of the load reaches the section
the head of the load reaches the section
the load position should be such that the section divides it equally on both sides

ANSWER DOWNLOAD EXAMIANS APP