It was determined that the engineer, the architect and a pipefitter needed mental evaluation.
They were put in booths. There was a chair and a table, in each booth, with 3- two inch steel balls on the tables. They were told to arrange the balls, in any pattern.
After a few seconds the engineer came out of his booth. The 3 balls were in a line , 1 foot apart.
"You pass the evaluation. Just what we expected from an engineer. Fast, precise and simple"
After a couple of minutes the architect came out. He had arraigned the balls in a perfect triangle
" You pass the evaluation. Just as we expected from an architect. Creative!"
After about a half hour, the pipefitter was still behind closed doors, in his booth. The evaluators opened the door.
One steel ball was broken. One was missing and the third was in the pipefitter's lunch box.
B2B