Using the information in the Job Sequencing Exercise, and the sequences assigned below, create two Gantt Charts
Fantastic news! We've Found the answer you've been seeking!
Question:
Using the information in the Job Sequencing Exercise, and the sequences assigned below, create two Gantt Charts by loading the work centers with the available jobs. Based on your schedules, show the make spans, average total queue time across all jobs, and the total profit (loss) for your schedules. Briefly comment on your results.
Priority sequence and type of loading to use in developing your schedule:
USE ONLY BREAKOUT ROOM 8 INFORMATION PLEASE.
Transcribed Image Text:
JOB SEQUENCING PROBLEM The owner of a contract repair shop for small aircraft engines is faced with the problem of scheduling the various re- pair operations required on each engine. The type of repairs required varies from engine to engine. For various technical. reasons, the repairs on each engine must be made in a specified sequence of operations, which are performed at different "stations" in the shop, each station being manned by one mechanic. Thus, for example, one engine requiring 4 operations might follow the sequence "station 1, station 2, station 4, station 3," while another might follow the sequence "station 2, station 3, station 1, station." 11 A given engine does not necessarily pass through every station, and some engines may be routed through a given station more than once. As a result of equipment limitations there is only 1 station of each type, and the nature of the equipment is such that only 1 engine may be worked on at a station at any given time. Past experience has indicated that once an operation is begun at a particular station, work is most efficiently accomplished if the engine stays at that station until completion of the operation. The shop's contract with the aircraft owners specifies a fixed price for repairs of a given type on each engine type. Since most of the engines come from aircraft which are used in air taxi service, minimization of aircraft down time for repairs is important. Thus the contract calls for the establishment of a fixed due date. for each engine (usually 24-48 hours after engine acceptance at the shop). If the due date is not met, the repair shop is assessed a specific penalty for each hour of delay past the due date. Because of these facts, the shop owner customarily employs extra-shift personnel to provide for continuous work on each engine. On a typical morning, 3 engines have been accepted for repairs by the shop. The shop owner is attempting to lay out a work schedule for these 3 engines which will result in maximum total profit. Engine A is due at hour 33, Engine B is due at hour 26, and Engine C is due at hour 35. The contract price and delay penalty for each job (engine) are shown in Table 1 below. JOB SEQUENCING PROBLEM The owner of a contract repair shop for small aircraft engines is faced with the problem of scheduling the various re- pair operations required on each engine. The type of repairs required varies from engine to engine. For various technical. reasons, the repairs on each engine must be made in a specified sequence of operations, which are performed at different "stations" in the shop, each station being manned by one mechanic. Thus, for example, one engine requiring 4 operations might follow the sequence "station 1, station 2, station 4, station 3," while another might follow the sequence "station 2, station 3, station 1, station." 11 A given engine does not necessarily pass through every station, and some engines may be routed through a given station more than once. As a result of equipment limitations there is only 1 station of each type, and the nature of the equipment is such that only 1 engine may be worked on at a station at any given time. Past experience has indicated that once an operation is begun at a particular station, work is most efficiently accomplished if the engine stays at that station until completion of the operation. The shop's contract with the aircraft owners specifies a fixed price for repairs of a given type on each engine type. Since most of the engines come from aircraft which are used in air taxi service, minimization of aircraft down time for repairs is important. Thus the contract calls for the establishment of a fixed due date. for each engine (usually 24-48 hours after engine acceptance at the shop). If the due date is not met, the repair shop is assessed a specific penalty for each hour of delay past the due date. Because of these facts, the shop owner customarily employs extra-shift personnel to provide for continuous work on each engine. On a typical morning, 3 engines have been accepted for repairs by the shop. The shop owner is attempting to lay out a work schedule for these 3 engines which will result in maximum total profit. Engine A is due at hour 33, Engine B is due at hour 26, and Engine C is due at hour 35. The contract price and delay penalty for each job (engine) are shown in Table 1 below.
Expert Answer:
Related Book For
Project Management Achieving Competitive Advantage
ISBN: 978-0133798074
4th edition
Authors: Jeffrey K. Pinto
Posted Date:
Students also viewed these accounting questions
-
Using the information in BE5-14, determine Martinezs free cash flow, assuming that it reported net cash provided by operating activities of $400,000.
-
Using the information in Exercise 16-5, assume that Landor Office Supplies records inventory on a perpetual basis and calculate the cost of the ending inventory under each of the following methods:...
-
Using the information in Exercise 1, if rent were increased by $25,000 and variable costs and unit selling price remained unchanged, what would be the new PV ratio and break-even point in units and...
-
You have three light bulbs; bulb A has a resistance of 240 , bulb B has a resistance of 192 , and bulb C has a resistance of 144 . Each of these bulbs is used for the same amount of time in a setup...
-
As the degree of customer contact increases in a service operation, what generally happens to the efficiency of the operation?
-
The NW Shopping Mall conducts special events to attract potential patrons. Among the events that seem to attract teenagers, the young/middle-aged group, and senior citizens, the two most popular are...
-
Find a sample settlement agreement. Of those covered in this chapter, what type of settlement agreement did you find?
-
Abby Bergen has recently been hired as the manager of Stellas Coffee, a national chain of franchised coffee shops. During her first month as store manager, Abby encountered the following internal...
-
According to the terms of the Samsung Co. Ltd./Classy Formal Wear Inc. letter of credit (LC) there are nine (9) documents that Samsung is required to provide in order to get paid. If Classy was...
-
Based on the two tables and the attributes below, write SQL commands for each question to retrieve the data from the database. tblSales InvoiceNumber InvoiceDate CustomerNumber Sales OrderNumber...
-
A credit card company charges you an interest rate of 1.88% monthly (i.e., 1.88% per month on the card's outstanding balance). This rate is not a per annum rate (i.e., not an (Enter your APR) but a...
-
How does cultural awareness influence business communication, especially in multinational or cross-cultural contexts?
-
Explore the impact of digital transformation on business writing. How has the proliferation of communication platforms changed the way professionals write and interact?
-
individual groups and departments within a company often focus on optimizing their own objective and local processes. this can be a problem why?
-
Direct materials Polaski Company manufactures and sells a single product called a Ket. Operating at capacity, the company can produce and sell 30,000 Rets per year. Costs associated with this level...
-
find the mean and standard deviation of the sample of housefly wing lengths list all the data values that are within 2 standard deviations of the mean. justify how you obtained those data values....
-
3. The longest-path algorithm described in class can also be used to count the number of different paths from the starting vertex s to each other vertex in a directed acyclic graph. To do so, set...
-
Would you use the adjacency matrix structure or the adjacency list structure in each of the following cases? Justify your choice. a. The graph has 10,000 vertices and 20,000 edges, and it is...
-
Comment on the following statement: In deciding on whether or not to kill a project, it is critical to continually monitor the environment for signs it may no longer be viable.
-
Identify the five major methods for resolving conflict. Give an example of how each might be applied in a hypothetical project team conflict episode.
-
Identify the stage of group development. Why is it necessary for project teams to move through these stages in order to be productive?
-
Match List I with List II an select the correct answer using the codes given below the lists: List I A. Quadric cycle chain B. Single slider crank chain C. Double slider crank chain D. Crossed slider...
-
In gears, interference takes place when (a) the tip of a tooth of mating gear digs into the portion between base and root circle (b) gear do not move smoothly in the absence of lubrication (c) pitch...
-
In a flat collar pivot bearing, the moment due to friction is proportional to \(\left(r_{1} ight.\) and \(r_{2}\) are the outer and inner radii respectively) (a)...
Study smarter with the SolutionInn App