1. In a highly utilized system, it is natural to concentrate on the bottleneck to improve both cycle time and throughput since
(a) the critical path always includes the bottleneck
(b) the critical path is long
(c) most systems exhibit variance
2. In a typical 10-hour day, 400 cars get gas at Sonny's gas station. Sonny's has 10 pumps. What is the capacity of Sonny's gas station?
(a) 4 cars per hour per pump
(b) 10 cars
(c) 40 cars per hour
(d) 40 cars per pump
(e) We have insufficient information to compute the capacity
3. Increasing the number of identical parallel servers in a queuing system, while keeping everything else the same, will
(a) increase capacity
(b) reduce expected time spent in the queue
(c) reduce the expected service time
(d) (a) and (b)
(e) (a) and (c)
(f) (b) and (c)