TRUE or FALSE: Lot Streaming reduces batch throughput time by running machines at a faster speed.

TRUE or FALSE: Little’s Law is valid for all systems and provides estimate of mean and variance of queue lengths.

For a paced transfer line with 3 machines and without buffer, if each machine fails on average every 10 cycles and average repair time is two cycles. What is the availability of the line? (Assume that the failure and repair time follows a geometric distribution).   

A serial production line will have ten stages. Each stage will fail on average once every 200 cycles with average repair time of 4 cycles. Desired availability is 92%. Which of the following is true of buffers applied to this system?

The Daytona 500 racetrack in Florida has some of the best pit-crews in the world to service cars as they race for NASCAR. Each pit crew in NASCAR can contain up to 8 crew members, but only 5 are allowed in the pit at any time. In this scenario, the cars, as they stop, line up and have a crew member assigned. The crew members do not have the same service speed (see table below), but you should assume that all crew members can service a car in full regardless of title (meaning cars do not need to visit all crew members, they are serviced by 1 as they are assigned). Crew Member Pit Speed Jackman 4 cars per hour Tire Changer 6 cars per half hour Gasman 5 cars per 15 min Utility Man 7 cars per hour Tire Carrier 1 car per 10 min The pit-stop area (nicknamed Tartarus) is where each car is assigned a crew member and are serviced from right to left (meaning the last car is serviced first, then the 19th car and so on). 5a. How many cars can the entire crew serve in 1 hour? (5pts) [PartA] 5b. Identify the order of which the crew members should be placed in the pit (1st, 2nd, 3rd, 4th, 5th). (5pts) [PartB1st] , [PartB2nd] , [PartB3rd] , [PartB4th] , [PartB5th] 5c. Identify which crew member is the bottleneck for the whole pit. (3pts) [PartC]5d. Identify each range of cars the crew members will work when the pit-stop system reaches steady state (REMEMBER: Cars arrive right to left). Please show all work on scrap paper. (10pts) [PartD]

A manufacturing cell with Kanban control produces 16 different types of cylindrical metal rods that are used in several assembly cells spread across a 1,000,000 sq. ft. complex consisting of four buildings.  One particular rod (A3416) is used by three different assembly cells for a consistent total demand rate of 60 rods per hour.  The rods are moved in containers that hold 5 rods.  It typically takes 5 hours to replenish a container of rods but that time varies by up to 20%. How many kanbans should be used for the production of rod (A3416)? 

TRUE or FALSE: The main requirement of a good heuristic is that it should converge to a solution with an acceptable amount of computational effort.

TRUE or FALSE: Binary sorting will always converge to the same solution regardless of the starting order of rows and columns.

Age-related changes in the respiratory system include a decrease in lung elasticity and a reduction in the efficiency of gas exchange.

Name the phenotype of Generation 1, Individual 2?