1. A copy machine is available 24 hours a day. On a typical day, the machine produces 84 jobs. Each job takes about 5 minutes on the machine, 3 minutes of which is processing time and 2 minute is setup time (logging in, defining the job). About 15 percent of the jobs need to be reworked, in which case the setup time and the processing time have to be repeated. The remainder of the time, the equipment is idle.

What is the OEE of the equipment?

Note: Round your percentage answer to 1 decimal place.

2. In the welding operations of a bicycle manufacturer, a bike frame has a flow time of about 12.55 hours. The time in the welding operation is spent as follows: 2 hours waiting in front of the cutting machine for the batch to start, 1 hour waiting for the setup of the machine, 2 hours waiting for the other pieces of the batch to go through cutting, 1 minute at the cutting machine, and 3 hours waiting for the transfer to the welding machine. Then, at the welding machine, the unit spends 1 hour waiting in front of the welding machine for the batch to start, 2 hours waiting for the setup of the welding machine, 0.55 hours waiting for the other pieces of the batch to go through welding, 0.35 minutes at the welding machine, and 1 hour waiting for the transfer to the next department.

Determine the exact flow time. What is the value-added percentage of the flow time?

Note: Round your percentage answer to 4 decimal places.