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Unformatted text preview: 1 FAR OUT: A PROCESS ANALYSIS QUESTION The Far Out chair company manufactures two types of chairs: a Rocking Chair and an Adirondack Chair. Far Out has two assembly lines, one dedicated to Rocking Chairs and the other dedicated to Adirondack Chairs. These lines can produce on average 30 and 10 chairs per hour respectively. After leaving the assembly line the chair must either be stained or painted. Currently, 2/3 of the Rocking Chairs are stained and 40% of the Adirondack Chairs are stained. The remaining chairs are painted either white or green. Half of the painted chairs are green. The chairs are painted with a robot at the rate of 20 per hour. The robot can paint either type of chair but it does take 1 hour to switch between colors. At the end of each day Far Out cleans the paint robot so that residual paint does not dry over night. Cleaning takes 1 hour and the paint robot can continue operations the next morning without delay. The chairs are stained in large baths at the rate of 30 per hour, but after 330 chairs are stained, the baths must be replaced. It takes 4 hours to dispose of the old stain and replace the baths with new stain. This 4 hour change over time can straddle two work days without incurring additional time. The company operates 8 hours per day and never uses overtime. (a) Assume Far Out switches paint color once per day and then cleans the robot at the end of the day. What is the total number of chairs produced per day on average? (b) Far Out believes that the staining operation is over worked. They are thinking about painting 80% of the Adirondack Chairs. If they made this change, how many chairs could they manufacture per day? (c) Suppose Far Out did paint 80% of their Adirondack Chairs. What is their maximum chair output per day? In achieving this maximum output, how frequently do they switch paint colors? THE YUPPIE CAR WASH CO. 1 Jane Dow recently opened a new car wash in an affluent suburb of a major metropolitan area. Dow decided to cater to the high-priced segment of the car-wash market and try as much as possible to service expensive cars that are highly pampered by their owners. The Yuppie Car Wash, as Dow named her enterprise, uses a two-stage wash and cleaning process. In the first stage, cars are washed using state-of-the-art automatic car-wash machines with brushes that are baby-bumper smooth. The second-stage of the process involves the cleaning of the interior of the cars. Yuppie has two automatic car-wash machines, each of which costs $150,000. To be cleaned, a car need only go through one of the machines. The machines are identical and can process cars in parallel....
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