This is a closednote and closed-note exam. You may have two sheets of information. The total score for this Arena section of exam is 10 points. The total score for the theory section of exam is 20 points. In a workshop, metal sheets are arriving with a time between arrival being distributed triangular with a mode of 15, minimum of 12, and maximum of 20 seconds.
All metal sheets go through a cutting station with two cutting machines.
The cutting process time is distributed exponentially with a mean of 25 seconds. The circle parts go to a station that drills a hole in it while the process time is normally distributed with a mean of 50 and standard deviation of 4 seconds. The square sheets go to another station where they are bent. This process takes an average of 40 seconds. Pipes are made out of the rectangle sheets in another station and the processing time is distributed normally with mean 45 and standard deviation of 5 seconds.