Basically I had to learn about Lien law and how to legally contract in the state of CA.. In the state of CA it is illegal to improve or modify real property with out a contractors Lic. For any job over $500. You must also get a $12,500 Contractors bond, Finger printed, proof workers Comp. Insurance or exemption.
The test pretty much covered Lien Law, Arbitration law, CAL-OSHA Health & safety, Business Management, & how to make sure every local government agency can dip its hands in your pocket and how to pay their fees on time!
Now can I build a Sign????? Who the hell knows! they did not test me on that!
I have all the study books on the C-45 electrical sign lic. And it has a lot of math and electrical parts and more safety stuff. They just want to make sure when you fry your self or kill some one your covered with workers comp or a bond!