A plant runs in two shifts, one shift of 8 hours and during each shift there is 2 hours of planned downtime. If the machine is stopped each day an average- of 110 minutes for setups and 75 minutes for breakdowns and repairs. Determine the availability of machines. Also suppose the average daily throughput of the machine is observed to be 830 units, and the actual cycle time is observed to be 0.6 min/part. Determine the rate efficiency and performance efficiency of machines (Assume speed efficiency = 0.83).
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- A company that makes shopping carts for supermarkets and other stores recently purchased somenew equipment that reduces the labor content of the jobs needed to produce the shopping carts.Prior to buying the new equipment, the company used five workers, who produced an average of80 carts per hour. Workers receive $10 per hour, and machine cost was $40 per hour. With the newequipment, it was possible to transfer one of the workers to another department, and equipment costincreased by $10 per hour while output increased by four carts per hour.a. Compute labor productivity under each system. Use carts per worker per hour as the measure oflabor productivity.A company that makes shopping carts for supermarkets and other stores recently purchased somenew equipment that reduces the labor content of the jobs needed to produce the shopping carts.Prior to buying the new equipment, the company used five workers, who produced an average of80 carts per hour. Workers receive $10 per hour, and machine cost was $40 per hour. With the newequipment, it was possible to transfer one of the workers to another department, and equipment costincreased by $10 per hour while output increased by four carts per hour.a. Compute labor productivity under each system. Use carts per worker per hour as the measure oflabor productivity.b. Compute the multifactor productivity under each system. Use carts per dollar cost (labor plusequipment) as the measure.c. Comment on the changes in productivity according to the two measures, and on which one youbelieve is the more pertinent for this situation.Cakes baked by the Freshfood Bakery are transported fromthe ovens to be packaged by one of three wrappers. Eachwrapper can wrap an average of 120 cakes per hour (Poissondistributed). The cakes are brought to the wrappers at therate of 300 per hour (Poisson distributed). If a cake sitslonger than 5 minutes before being wrapped, it will not befresh enough to meet the bakery’s quality control standards.Does the bakery need to hire another wrapper?
- A company that makes a product recently purchased some new equipment that reduces the labor content of the jobs needed to produce the product. Prior to buying the new equipment, the company used six workers, who produced an average of 90 units per hour. Workers receive P35 per hour and machine cost was P2,000 per hour. With the new equipment, it was possible to transfer one of the workers to another department, and equipment cost increased by P500 per hour while output increased by four units per hour. Compute labor productivity under each system. Use units per worker per hour as the measure of labor productivity.The boss at the Precision Machine Shop needs to de-finish the personnel policy,which minimises all running expenses. The overall delivery time at the crib where instruments are available Eight machinists every hour are dispensed to staff. Each one. Each one.Wage of machinist is $20 an hour. The boss should employ the crib with a junior coach who pays $5 per hour.and can handle 10 arrivals an hour or attendant paying $12 an hour was able to handle 16 arrivals every hourHour. Hour. Which individual is selected and what is selected?Be the approximate average hourly cost?Determine the machine uptime. Machine 1 Operator CT = 44 sec C/O = 60 min Lot = 1000 pc Avail= 27600 sec Uptime = ? O 87% 90% O 100% O 70%
- A company that makes a product recently purchased some new equipment that reduces the labor content of the jobs needed to produce the product. Prior to buying the new equipment, the company used six workers, who produced an average of 90 units per hour. Workers receive P35 per hour and machine cost was P2,000 per hour. With the new equipment, it was possible to transfer one of the workers to another department, and equipment cost increased by P500 per hour while output increased by four units per hour. Compute the multifactor productivity under each system. Use units per peso cost (labor plus equipment) as the measure.Mr. K’s is a very popular hair salon. It offers high quality hairstyling andphysical relaxation services at a reasonable price, so it always has unlimiteddemand. The service process includes five activities that are conducted inthe sequence described below ( the time required for each activity is shownin parenthesis):Activity 1: Welcome a guest and offer homemade herb tea (10 minutes)Activity 2: Wash and condition har (10 minutes)Activity 3: Neck, shoulder, and back stress release massage (10 minutes)Activity 4: Design and hair style and do the hair (25 minutes)Activity 5: Ring up the guest bill (5 minutes)Each activity has one employee dedicated to it. For the following questions,assume unlimited demand. Also assume that the employee at activity 1 onlyadmits new guests at the rate of the bottleneck.(a) Which resource is the bottleneck?(b) What is the capacity of the process?(c) What is the flow rate?(d) What is the utilization of the employee at activity 3(e) What is the cycle time?4. CWD Business systems maintains a successful Telecom sales department for Top up call credit in which a clerk takes orders by telephone. If the clerk is occupied on one line, incoming phone calls to the department are answered automatically by an answering machine and asked to wait. As soon as the clerk is free, the party that has waited the longest is transferred and answered first. Calls come in at a rate of about 15 per hour. The clerk is capable of taking an order in an average of 3 minutes. Calls tend to follow a Poisson distribution, and service times tend to be exponential. The clerk is paid $15 per hour, but because of lost goodwill and sales, CWD loses about $30 per hour of customer time spent waiting for the clerk to take an order. Part B CWD is considering adding a second clerk to take calls. The store would pay that person the same $15 per hour. Using appropriate formula for the multiple channel model, answer the following questions: a. What is the probability that no…
- C&A Candy produces two kinds of gumdrops: regular and sugar-free. The data on these gumdrops are given below: Regular Sugar-Free 30 10 60 30 80 80 Demand (lbs per hour) Changeover time (min) Production rate (lbs per hour) C&A first makes 60 pounds of regular gumdrops, then 20 pounds of sugar-free gumdrops, and then repeats this sequence. What is the utilization of the production process? Multiple Choice O O O 25% 20% 50% 40%11. Leo manages a receiving station for rice. Farmers deliver their loads of rice from 7 am to 7 pm. Leo can process them at a rate of 4.5 tons an hour, and on a heavy day, a total of 96 tons can be expected. The station has room to hold only 15 tons of rice in inventory prior to processing. Once this space is filled, the farmers’ trucks must wait to dump their contents. What is the throughput (flow) rate after 7 pm (in tons/hr)?Jefferson Company's demand for its only product exceeds its manufacturing capacity. The company provided the following information for the machine whose limited capacity is prohibiting the company from producing and selling additional units. 4,900 minutes 7,000 minutes 3.8 units per minute 4.0 units per minute 15,827 units 18,620 units Actual run time this week Machine time available per week Actual run rate this week Ideal run rate Defect-free output this week Total output this week (including defects) Required: 1. Compute the utilization rate. (Round your answer to 2 decimal places.) 2. Compute the efficiency rate. (Round your answer to 2 decimal places.) 3. Compute the quality rate. (Round your answer to 2 decimal places.) 4. Compute the overall equipment effectiveness (OEE). (Do not round intermediate calculations. Round your final answer to 3 decimal places.) Utilization rate Efficiency rate Quality rate Overall equipment effectiveness