Nims Machining Level I Preparation Guide Grinding

Hey fellas ive been in the trade for about 15 years.A supervisor for about 10 years.Now i went through my apprenticeship for 3 years but didnt bother writing my exam.Now that things are starting to turn at my company i feel i need to get my ticket for the future.Before i write my exam i would like to somehow take a mock exam is there anything on the web that would have a mock exam.