PROBLEM $-4(10$ Points$)$

A contractor Wants to use the plate load test to predict the bearing capacity of a $\backslash (5=\backslash )$ footing. She intends to use a plate that is $\backslash (1-\backslash$mathrm$\{$ft$\}\backslash )$ in diameter $(30$ cm $)$ to do the tert The contractor believes that quanse can be equal to qua from the plate load test. The sol conditions are shown in the below figure.

Assess and discuss the validity of the contractor's thinking. If the contractor is motaten. state what factors he$/$she has neglected.