1. In the Factory Physics Framework, the three buffers are:
   1. Lean, Six Sigma, and ERP
   2. Lean Six Sigma, Theory of Constraints, and Kaizens
   3. Inventory, Time, and Capacity

2. What is being buffered in the Factory Physics Framework :
   1. Six Sigma
   2. Business Process Reengineering
   3. Variability

3. Operations Strategy is:
   1. selecting the portfolio of buffers to support the business strategy
   2. a waste of time
   3. lean, six sigma, and theory of constraints

4. In the penny fab, batching the pennies together to move through each station in a group caused worst case behavior:
   1. True
   2. False