Consider the following tasks, times, and predecessors for an assembly of set top cable converter boxes:...
Consider the following tasks, times, and predecessors for an assembly of set top cable converter boxes:
| TASK ELEMENT | TIME (MINUTES) |
ELEMENT PREDECESSOR |
| A | 3 | — |
| B | 3 | A |
| C | 2 | B |
| D | 2 | B |
| E | 1 | C, D |
| F | 1 | A |
| G | 3 | F |
| H | 3 | G |
| I | 1 | E, H |
Given a cycle time of six minutes, what is the efficiency of your layout? Use the longest task time as primary criterion with largest number of following tasks as secondary criterion.
Homework Answers
The assignment of tasks in the stations as per the LPT rule is as follows:
| Station | Remaining time | Eligibles | Was Fit | Assigned time | Remaining time | Idle time |
| I | 6 | A | A | 3 | 3 | 0 |
| 3 | B, F | B | 3 | 0 | ||
| 0 | C, D, F | - | - | 0 | ||
| II | 6 | C, D, F | C | 2 | 4 | 0 |
| 4 | D, F | D | 2 | 2 | ||
| 2 | E, F | F | 1 | 1 | ||
| 1 | E, G | E | 1 | 0 | ||
| 0 | G | - | - | 0 | ||
| III | 6 | G | G | 3 | 3 | 0 |
| 3 | H | H | 3 | 0 | ||
| 0 | I | - | - | 0 | ||
| IV | 6 | I | I | 1 | 5 | 5 |
Efficiency = Sum of task times / (No. of stations * Cycle time)
= 19 / (4*6)
= 0.7917 or 79.17%
Add Answer to:
Consider the following tasks, times, and predecessors for an
assembly of set top cable converter boxes:...
Consider the following tasks, times, and predecessors for an assembly of set top cable converter boxes:...
Consider the following tasks, times, and predecessors for an assembly of set top cable converter boxes: TASK ELEMENT TIME (MINUTES) ELEMENT PREDECESSOR A 2 — B 1 A C 5 B D 4 B E 3 C, D F 3 A G 2 F H 1 G I 4 E, H Given a cycle time of seven minutes, what is the efficiency of your layout? Use the longest task time as primary criterion with largest number of following tasks as...
Consider the following tasks, times, and predecessors for an assembly of set-top cable converter boxes ELEMENT...
Consider the following tasks, times, and predecessors for an assembly of set-top cable converter boxes ELEMENT TASK ELEMENT (MINUTES) PREDECESSOR TIME C, D E. H Given a cycle time of four minutes, develop an assembly line layout. Use the longest task time rule and the largest number of following tasks as a secondary criterion. What is the efficiency of your layout, assuming the 4-minute cycle time? (Round your answer to the nearest whole percent.) Efficiency
The desired daily output for an assembly line is 540 units. This assembly line will operate...
The desired daily output for an assembly line is 540 units. This assembly line will operate 729 minutes per day. The following table contains information on this product's task times and precedence relationships: TASK TASK TIME (SECONDS) IMMEDIATE PREDECESSOR A 30 — B 28 A C 18 B D 69 B E 34 A F 36 E G 42 C, D H 24 F, G b. What is the workstation cycle time? Cycle time seconds c. Balance this line using...
2. Show all the steps for the question to be worth any marks. The following table...
2. Show all the steps for the question to be worth any
marks.
The following table presentss the tasks, durations, and immediate predecessors necessary to produce a particular Rroduct The required daily output is 320 units, and the working day is 8.0 hours on an assembly line. Immediate Predecessor Duration (in minutes) Activity A 0.9 B 0.7 C 0.8 Г E 0.4 В, с А, D E 0.5 0.4 G E 0.6 Н F, G 0.5 T 1.1 a. Draw...
d) Assign tasks to work station using this rule: Assign the tasks according to greatest number...
d) Assign tasks to work station using this rule: Assign the tasks according to greatest number of following tasks. In case of a tie, use the tie breaker of assigning the task with the longest processing time first. Task Immediate predecessor Task time (minutes) a -- 0.2 b a 0.4 c b 0.2 d -- 0.4 e d 1.2 f c 1.2 g e, f 1
) A firm is planning to set up an assembly line to assemble 40 units per...
) A firm is planning to set up an assembly line to assemble 40 units per hour, and 57 minutes per hour are productive. The time to perform each task and the tasks that precede each task are contained in the following table. Task Preceding Task Time to perform (min.) A -- .69 B A .55 C B .92 D B .59 E B .70 F B 1.10 G C, D, E .75 H G, F .43 I H .29...
3. A manager wants to assign tasks to workstations in order to achieve an hourly output...
3. A manager wants to assign tasks to workstations in order to achieve an hourly output rate of four units. The depart- working time of 56 minutes per hour. ment uses a Assign the tasks shown in the following precedence network (times are on the nodes and are in minutes) to workstations using the following heuristic rules: (i) Assign the task with the largest positional weight. (ii) Tiebreaker: "Assign the task with the longest time." If a tie still exists,...
Wild Widget must set up an assembly line for widgets. Forecasts show that 68 units per...
Wild Widget must set up an assembly line for widgets. Forecasts show that 68 units per hour should be produced. The tasks required, task times, and precedence relationships are as follows: TTT Task A B Time (seconds) 10 21 20 Predecessors A A 28 E 12 D 10 D G 40 E,F b. What is the takt time? (Round your answer to the nearest whole number.) Takt time seconds per unit c. What is the theoretical number of workstations? (Round...
The Sun River beverage company is a regional producer of teas, exotic juices, and energy drinks....
The Sun River beverage company is a regional producer of teas, exotic juices, and energy drinks. With an interest in healthier lifestyles, there has been an increase in demand for their sugar-free formulation. The final packing operation requires 13 tasks. Sun River bottles their sugar-free product 5 hours a day, 5 days a week. Each week, there is a demand for 2,500 bottles of this product. TASK PERFORMANCE TIME (MINUTES) IMMEDIATE PREDECESSORS 1 0.2 — 2 0.2 1 3 0.3...
The following tasks are to be performed on an assembly line: TASK SECONDS TASKS THAT MUST...
The following tasks are to be performed on an assembly line: TASK SECONDS TASKS THAT MUST PRECEDE A 18 — B 10 A C 25 B D 15 B E 14 C F 17 D G 12 E, F H 20 G The workday is 6.25 hours long. Demand for completed product is 750 per day. a. Find the cycle time required to meet the desired output rate. (Round your answer to 1 decimal place.) b. What is the theoretical...
Consider the following tasks, times, and predecessors for an assembly of set-top cable converter boxes ELEMENT TASK ELEMENT (MINUTES) PREDECESSOR TIME C, D E. H Given a cycle time of four minutes, develop an assembly line layout. Use the longest task time rule and the largest number of following tasks as a secondary criterion. What is the efficiency of your layout, assuming the 4-minute cycle time? (Round your answer to the nearest whole percent.) Efficiency
2. Show all the steps for the question to be worth any
marks.
The following table presentss the tasks, durations, and immediate predecessors necessary to produce a particular Rroduct The required daily output is 320 units, and the working day is 8.0 hours on an assembly line. Immediate Predecessor Duration (in minutes) Activity A 0.9 B 0.7 C 0.8 Г E 0.4 В, с А, D E 0.5 0.4 G E 0.6 Н F, G 0.5 T 1.1 a. Draw...
3. A manager wants to assign tasks to workstations in order to achieve an hourly output rate of four units. The depart- working time of 56 minutes per hour. ment uses a Assign the tasks shown in the following precedence network (times are on the nodes and are in minutes) to workstations using the following heuristic rules: (i) Assign the task with the largest positional weight. (ii) Tiebreaker: "Assign the task with the longest time." If a tie still exists,...
Wild Widget must set up an assembly line for widgets. Forecasts show that 68 units per hour should be produced. The tasks required, task times, and precedence relationships are as follows: TTT Task A B Time (seconds) 10 21 20 Predecessors A A 28 E 12 D 10 D G 40 E,F b. What is the takt time? (Round your answer to the nearest whole number.) Takt time seconds per unit c. What is the theoretical number of workstations? (Round...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago