How do you classify the time for a machine opera tor who, between every job and sometimes in the middle of jobs, turns out the machine and goes for stock?
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A: THE ANSWER IS AS BELOW:
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How do you classify the time for a machine opera tor who, between every job and sometimes in the middle of jobs, turns out the machine and goes for stock? |
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- What is the bottleneck of the process is which worker ?Assume that General Dynamics, which manufactures high-technology instruments for spacecraft, is considering the sale of a navigational unit to a government agency in India that wishes to launch its own communications satellite. The government agency plans to purchase 8 units, although it would also consider buying 16 units. General Dynamics has started a chart relating labor time required to units produced. Unit Produced (X) Time Required toProduce the Xth Unit 1 10,000 hours 2 8,000 hours 4 6,400 hours 8 ? 16 ? Required: a. Compute the labor time required to produce 8 and 16 units.b. Assume that labor time costs $125 per hour. Compare the cost of producing the 1st unit to the cost of producing the 16th unit. What is the percentage of the cost of the 16th unit to the cost of the 1st unit?How manazing a time is different from an operation
- b. What is the purpose of approaches such as job enlargement and job enrichment?Data Products, Inc., packages and distributes a variety ofpersonal computer-related products. A time study hasbeen conducted for a job packaging 3.5-inch personalcomputer diskettes for shipment to customers. The jobrequires a packager to place 20 diskettes in a rectangularplastic bag, close the bag with a twist tie, and place thefilled bag into a bin, which is replaced by another workerwhen it is filled. The job can be broken into four basic elements. The elemental times (in minutes) were ob-tained from the time study for 10 job cycles shown in the following table. a. Using an allowance factor of 16%, determine the stan-dard time for this job. b. Determine the number of cycles for this time studysuch that the company would be 95% confident that theaverage time from the time study is within 4% of thetrue average cycle time.The normal time for a work cycle in a worker–machine system is 6.27 min. For setting the standard time, the PFD allowance factor is 12% and the machine allowance factor is 25%.The work cycle includes manual elements totaling a normal time of 5.92 min, all but 0.65 min of which are performed as internal elements. Determine (a) the standard time for the cycle and (b) the daily output at standard performance. (c) During an 8-hour shift, theworker lost 39 min due to personal time, rest breaks, and delays, and she produced 72 pieces. What was the worker’s pace on the operator-controlled portion of the shift?
- Puff ‘n’ Stuff Services is a small company that assembles mailings for clients in the Atlanta area. Different-size en-velopes are stuffed with various items such as coupons, ad-vertisements, political messages, and so on, by a staff of workers, who are paid on a piece-rate basis. A time study ofa job has been conducted by an engineering consulting firmusing a subject stuffing manila envelopes. The observationsfrom the time study for 10 cycles of the five-element job andthe performance rating for each element are as follows. a. Using an allowance factor of 10%, compute the stan-dard time for this job. b. If the firm pays workers a piece rate of $0.03 per enve-lope for this job, what would the average worker make per hour, and what would the subject of the study makeper hour?A toy factory is planning to make an additional item, which would be processed in 4 departments. The company is proposing to produce 600,000 units per year, working 250 days per year. The estimates of times made by an industrial engineer are in the table: Departments Times 1 2 3 4 Average processing time (second/part) 8 13 10 50 Average maintenance, time/day (minutes) 20 30 20 15 Average daily setup, time (minutes) 20 15 30 20 Average bookkeeping, time/day (minutes) 10 8 12 5 Machine adjustment, time/day (minutes) 15 10 15 15 Defective items, (% of production) 5 6 4 4 The parts are produced within the departments in a sequential manner (from department 1 to 2 to 3 to 4). 1. Determine the number of units that must be produced each day in each department if all defective units are scrapped.A toy factory is planning to make an additional item, which would be processed in 4 departments. The company is proposing to produce 600,000 units per year, working 250 days per year. The estimates of times made by an industrial engineer are in the table: Departments Times 1 2 3 4 Average processing time (second/part) 8 13 10 50 Average maintenance, time/day (minutes) 20 30 20 15 Average daily setup, time (minutes) 20 15 30 20 Average bookkeeping, time/day (minutes) 10 8 12 5 Machine adjustment, time/day (minutes) 15 10 15 15 Defective items, (% of production) 5 6 4 4 The parts are produced within the departments in a sequential manner (from department 1 to 2 to 3 to 4). Adding a second shift would reduce the efficiency of the first shift by 10%, and the efficiency of the second shift would be 5% less than that of the first shift. How many machines of each type would be required?
- A toy factory is planning to make an additional item, which would be processed in 4 departments. The company is proposing to produce 600,000 units per year, working 250 days per year. The estimates of times made by an industrial engineer are in the table: Departments Times 1 2 3 4 Average processing time (second/part) 8 13 10 50 Average maintenance, time/day (minutes) 20 30 20 15 Average daily setup, time (minutes) 20 15 30 20 Average bookkeeping, time/day (minutes) 10 8 12 5 Machine adjustment, time/day (minutes) 15 10 15 15 Defective items, (% of production) 5 6 4 4 The parts are produced within the departments in a sequential manner (from department 1 to 2 to 3 to 4). 2. Determine the number of machines needed in each department to meet the production goals.The normal time for a work cycle in a worker-machine system is 6.0 min. For setting the standard time, the PFD allowance factor is 15%, and the machine allowance factor is 20%. The work cycle includes manual elements totaling a normal time of 5.5 min, all but 0.75 min of which are performed as internal elements. Determine (a) the daily output at standard performance. (b) During an 8-hour shift, the worker lost 20 min due to personal time, rest breaks, and delays, and she produced 80 pieces. What was the worker’s pace on the operator-controlled portion of the shift?Operation Observations Turning Drilling Welding Cleaning up 955 971 337 215 174 PFD Fixing Fab Tech Oiling Machine Setting Gauges 262 52 48 Approximately how much time (in minutes) does the workers spend fixing the Fab Tech equipment during an eight hour shift. Assume that the workers have two 15-minute breaks during this shift. Assume this is a typical machine shop environment. As an industrial engineering would you be concerned with the amount of PFD time shown on the table. Explain your answer? 10.