Op Man Final Review Problems

# There are three mac hines w x and y us ed in the

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Unformatted text preview: t. The mark et will tak e all that c an be produc ed. a. As s uming that s ales pers onnel are paid on a c ommis s ion bas is , whic h produc t s hould they s ell? Product A b. On the bas is of max imiz ing gros s profit per unit, whic h produc t s hould be s old? Product B c. To max imiz e total profit for the firm, whic h produc t s hould be s old? Product B Worksheet Problem 23­12 Learning Objective: 23­02 Analyze bottleneck resources and apply TOC principles to controlling a process. Problem 23-12 The following diagram s hows the flow proc es s , raw material c os ts , and mac hine proc es s ing time for three produc ts : A, B, and C. There are three mac hines (W, X, and Y) us ed in the produc tion of thes e produc ts ; the times s hown are in required minutes of produc tion per unit. Raw material c os ts are s hown in c os t per unit of produc t. The mark et will tak e all that c an be produc ed. http://e z to.mhe c loud.mc gr a w- hill.c om/hm.tpx? todo= pr intvie w 26/29 1/29/2014 Assignme nt Pr int Vie w a. As s uming that s ales pers onnel are paid on a c ommis s ion bas is , whic h produc t s hould they s ell? Produc t A b. On the bas is of max imiz ing gros s profit per unit, whic h produc t s hould be s old? Produc t B c. To max imiz e total profit for the firm, whic h produc t s hould be s old? Produc t B Explanation: a. To max imiz e c ommis s ion, the s ales people would want to foc us on s elling the highes t pric ed item. b. Produc t A B C Selling Pric e Per Unit Cos t Per Unit Gros s Profit Per Unit \$60 \$55 \$5 \$50 \$40 \$10 \$55 \$50 \$5 The ans wer is to s ell only produc t B with the highes t gros s profit per unit of \$10. c. Produc t A B C Limiting Work Proc es s ing Output Per Profit Per Center Time (minutes ) Hour Unit Profit Per Hour X 3 20 \$5 \$100 Y 5 12 \$10 \$120 X 4 15 \$5 \$ 75 The ans wer is to s ell only B, with the highes t profit per hour. 21. awar d: 1.42 out of 1.42 points Problem 23-18 A s teel produc t is manufac tured by s tarting with raw material (c arbon s teel wire) and then proc es s ing it s equentially through fiv e operations us ing mac hines A to E, res pec tiv ely (s ee table below). This is the only us e that the fiv e mac hines are put to. The hourly rates for eac h mac hine are giv en in the table. Ans wer the following ques tions . Us e the original output rates to ans wer eac h ques tion (i.e., dis regard any c hanges mentioned in prev ious ques tions ). Operation: Mac hine: Hourly unit output rate: 1 A 40 2 B 60 3 C 70 4 D 50 5 E 70 Cons ider the following ques tions . a. What is the max imum output per hour of the s teel produc t? Max imum output per hour 40 produc ts b. By how muc h would the output be improv ed if B was inc reas ed to 70? By 0 produc ts http://e z to.mhe c loud.mc gr a w- hill.c om/hm.tpx? todo= pr intvie w 27/29 1/29/2014 Assignme nt Pr int Vie w c. By how muc h would the output be improv ed if C was inc reas ed to 80? By 0 produc ts d. By how muc h would the output be improv ed if C was inc reas ed to 90? By 0 produc ts e. What is the effec t on the s y s tem if mac hine A c an only manage an output of 30 in one hour? We los e 10 produc ts f. What is the effec t on the s y s tem if mac hine C c an only manage an output of 30 in one hour? We los e 10 produc ts g. What is the effec t on the s y s tem if mac hine B is allowed to drop to an output of 30 in one hour? We los e 10 Worksheet produc ts Learning Objective: 23­04 Evaluate bottleneck scheduling problems by applying TOC principles. Problem 23­18 Problem 23-18 A s teel produc t is manufac tured by s tarting with raw material (c arbon s teel wire) and then proc es s ing it s equentially through fiv e operations us ing mac hines A to E, res pec tiv ely (s ee table below). This is the only us e that the fiv e mac hines are put to. The hourly rates for eac h mac hine are giv en in the table. Ans wer the following ques tions . Us e the original output rates to ans wer eac h ques tion (i.e., dis regard any c hanges mentioned in prev ious ques tions ). Operation: Mac hine: Hourly unit output rate: 1 A 40 2 B 60 3 C 70 4 D 50 5 E 70 Cons ider the following ques tions . a. What is the max imum output per hour of the s teel produc t? Max imum output per hour 40 produc ts b. By how muc h would the output be improv ed if B was inc reas ed to 70? By 0 produc ts c. By how muc h would the output be improv ed if C was inc reas ed to 80? By 0 produc ts d. By how muc h would the output be improv ed if C was inc reas ed to 90? By 0 produc ts e. What is the effec t on the s y s tem if mac hine A c an only manage an output of 30 in one hour? We los e 10 produc ts f. What is the effec t on the s y s tem if mac hine C c an only manage an output of 30 in one hour? We los e http://e z to.mhe c loud.mc gr a w- hill.c om/hm.tpx? todo= pr intvie w 10 produc ts 28/29 1/29/2014 Assignme nt Pr int Vie w g. What is the effec t on the s y s tem if mac hine B is allowed to drop to an output of 30 in one hour? We los e 10 produc ts http://e z to.mhe c loud.mc gr a w- hill.c om/hm.tpx? todo= pr intvie w 29/29...
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