When I was interviewed for my job with Tektronix at the Dallas Service Center back in 1976, I was given a test. But how I actually did on the test wasn't of concern. It was mostly as a point of discussion for the interview that followed. Sure, I might have gotten the bias voltage calculation for a circuit wrong, but the interviewer took me through all kinds of Ohm's Law and circuit theory questions to see what I actually did know about other things in the circuit.
I've also made up a test for use by companies in screening potential job applicants. They were going to use the grade as a first step in getting an interview, so it depends upon the company as to how they will use the test.
Dean