Question: Consider again the example of the three$-$step airport security. The first step, verifying ID and boarding pass, takes $30$ seconds per passenger. The second step, searching the passenger for metal objects using a metal detector, takes $10$ seconds per passenger. The third step, running the carry on luggage through an X$-$ray machine, takes $60$ seconds per passenger. Assume that there are many customers waiting in the process.

a$.$ Which resource is the bottleneck?

b$.$ What is the capacity of the process?

c$.$ What is the process flow rate?

d$.$ What is the utilization of the metal detector?

e$.$ What is the process cycle time?