How can a test be considered "racially bias"?

Back when I was around 18 I actually took a cop test and ped it. Then moved to another state and wanted to be a police officer and ped that test too. I don't think the test is racially bias at all as I've ped it twice. I decided not to be a police officer and instead finish getting my degree. But I can honestly say that most of the questions on the test don't have anything to do with white or black culture or anything like that. Most of the questions are logic questions....what would you do in this scenario type thing, then a part of the test tests memory. I personally thought the test was easy. I honestly think it shouldn't be lowered. Its a pretty standard test, and most of the time you need 3 text books that will cover all the information. If you can't p it after that...honestly you don't deserve to be police officer.