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... 3.16 The Rover 6 is a new custom-designed sports car. An analysis of the task of building the Rover 6 reveals the following list of relevant activities, their immediate predecessors, and their duration:? JOB LETTER IMMEDIATE PREDECESSOR(S) NORMAL TIME (DAYS) DESCRIPTION Start Design A 8 Order special accessories B 0.1 D Build frame B Build doors В 1 Attach axles, wheels, gas tank F D 1 Build body shell B 2 Build transmission and drivetrain H B 3 Fit doors to body shell G, E 1 Build engine B 4 K Bench-test engine 2 L Assemble chassis F, H, K 1 M Road-test chassis L 0.5 N Paint body 2 Install wiring 1 Install interior 1.5 Accept delivery of special accessories Q Mount body and accessories on chassis M, O, P, Q R 1 Road test car R 0.5 Attach exterior trim 1 U Finish a) Draw a network diagram for the project. b) Mark the critical path and state its length. c) If the Rover 6 had to be completed 2 days earlier, would it help to: i) Buy preassembled transmissions and drivetrains? ii) Install robots to halve engine-building time? iii) Speed delivery of special accessories by 3 days? d) How might resources be borrowed from activities on the non- critical path to speed activities on the critical path? PX

... 3.16 The Rover 6 is a new custom-designed sports car. An analysis of the task of building the Rover 6 reveals the following list of relevant activities, their immediate predecessors, and their duration:? JOB LETTER IMMEDIATE PREDECESSOR(S) NORMAL TIME (DAYS) DESCRIPTION Start Design A 8 Order special accessories B 0.1 D Build frame B Build doors В 1 Attach axles, wheels, gas tank F D 1 Build body shell B 2 Build transmission and drivetrain H B 3 Fit doors to body shell G, E 1 Build engine B 4 K Bench-test engine 2 L Assemble chassis F, H, K 1 M Road-test chassis L 0.5 N Paint body 2 Install wiring 1 Install interior 1.5 Accept delivery of special accessories Q Mount body and accessories on chassis M, O, P, Q R 1 Road test car R 0.5 Attach exterior trim 1 U Finish a) Draw a network diagram for the project. b) Mark the critical path and state its length. c) If the Rover 6 had to be completed 2 days earlier, would it help to: i) Buy preassembled transmissions and drivetrains? ii) Install robots to halve engine-building time? iii) Speed delivery of special accessories by 3 days? d) How might resources be borrowed from activities on the non- critical path to speed activities on the critical path? PX

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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... 3.16 The Rover 6 is a new custom-designed sports car. An analysis of the task of building the Rover 6 reveals the following list of relevant activities, their immediate predecessors, and their duration:2 JOB LETTER IMMEDIATE PREDECESSOR(S) TIME (DAYS) NORMAL DESCRIPTION A Start B Design A 8 Order special accessories B 0.1 D Build frame 1 E Build doors 1 F Attach axles, wheels, gas tank D Build body shellI В 2 Build transmission and drivetrain H В 3 Fit doors to body shell G, E 1 J Build engine В 4 K Bench-test engine 2 Assemble chassis F, Н, К 1 M Road-test chassis L 0.5 N Paint body 2 Install wiring 1 P Install interior 1.5 Accept delivery of special accessories Mount body and accessories on chassis М, О, Р, Q R 1 Road test car R 0.5 Attach exterior trim 1 U Finish a) Draw a network diagram for the project. b) Mark the critical path and state its length. c) If the Rover 6 had to be completed 2 days earlier, would it help to: i) Buy preassembled transmissions and drivetrains? ii) Install robots to halve engine-building time? iii) Speed delivery of special accessories by 3 days? d) How might resources be borrowed from activities on the non- critical path to speed activities on the critical path? Px z z u
Transcribed Image Text:... 3.16 The Rover 6 is a new custom-designed sports car. An analysis of the task of building the Rover 6 reveals the following list of relevant activities, their immediate predecessors, and their duration:2 JOB LETTER IMMEDIATE PREDECESSOR(S) TIME (DAYS) NORMAL DESCRIPTION A Start B Design A 8 Order special accessories B 0.1 D Build frame 1 E Build doors 1 F Attach axles, wheels, gas tank D Build body shellI В 2 Build transmission and drivetrain H В 3 Fit doors to body shell G, E 1 J Build engine В 4 K Bench-test engine 2 Assemble chassis F, Н, К 1 M Road-test chassis L 0.5 N Paint body 2 Install wiring 1 P Install interior 1.5 Accept delivery of special accessories Mount body and accessories on chassis М, О, Р, Q R 1 Road test car R 0.5 Attach exterior trim 1 U Finish a) Draw a network diagram for the project. b) Mark the critical path and state its length. c) If the Rover 6 had to be completed 2 days earlier, would it help to: i) Buy preassembled transmissions and drivetrains? ii) Install robots to halve engine-building time? iii) Speed delivery of special accessories by 3 days? d) How might resources be borrowed from activities on the non- critical path to speed activities on the critical path? Px z z u
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