To draw: The precedence diagram.

Question

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Answer 1

Question

Chapter 9, Problem 20P

a)

Summary Introduction

To draw: The precedence diagram.

b)

Summary Introduction

To calculate: The highest allowable cycle time.

c)

Summary Introduction

To calculate: The daily production rate.

d)

Summary Introduction

To calculate: The theoretical minimum number of workstations.

e)

Summary Introduction

To calculate: The efficiency.

f)

Summary Introduction

To calculate: The total idle time per cycle.

g)

Summary Introduction

To determine: The best workstation assignment to be made.

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Dr. Lori Baker, operations manager at Nesa Electro-nics, prides herself on excellent assembly-line balancing. She has been told that the firm needs to complete 96 instruments per24-hour day. The assembly-line activities are: TASK TIME (min) PREDECESSORSA 3 —B 6 —C 7 AD 5 A, BE 2 BF 4 CG 5 FH 7 D, EI 1 HJ 6 EK 4 G, I, J 50a) Draw the precedence diagram.b) If the daily (24-hour) production rate is 96 units, what is thehighest allowable cycle time?c) If the cycle time after allowances is given as 10 minutes, whatis the daily (24-hour) production rate?d) With a 10-minute cycle time, what is the theoretical minimumnumber of stations with which the line can be balanced?e) With a 10-minute cycle time and six workstations, what is theefficiency?f) What is the total idle time per cycle with a 10-minute cycletime and six workstations?g) What is the best workstation assignment you can makewithout exceeding a 10-minute cycle time, and what is itsefficiency?

A paced assembly line has been devised to manufacture calculators, as the following data show: Station Work ElementAssigned Work ElementTime (min) S1 S2 S3 S4 S5 S6 A D,E C B,F,G H,I,J K 2.7 0.6, 0.9 3.0 0.7, 0.7, 0.9 0.7, 0.3, 1.2 2.4 a. What is the maximum hourly output rate from this line? (Hint: The line can go only as fast as its slowest workstation.)b. What cycle time corresponds to this maximum output rate?c. If a worker is at each station and the line operates at this maximum output rate, how much idle time is lost during each 10-hour shift?d. What is the line’s efficiency?

A list of tasks has been compiled in an assembly operation. Task Precedence Task Time (mins) A 6. В C А В 7 D В E С, D 4 E i) Calculate the number of work stations required, balance the line and calculate the line efficiency if it is required that the assembly operation is completed within 10 minutes. If there is no constraint on the number of work stations balance the line ii) and calculate the line efficiency in order to maximize output. ii) Compare the number of assemblies that can be made in a four hour period according to sub-divisions (i) and (ii).

Answer 2

Question

Chapter 9, Problem 20P

a)

Summary Introduction

To draw: The precedence diagram.

b)

Summary Introduction

To calculate: The highest allowable cycle time.

c)

Summary Introduction

To calculate: The daily production rate.

d)

Summary Introduction

To calculate: The theoretical minimum number of workstations.

e)

Summary Introduction

To calculate: The efficiency.

f)

Summary Introduction

To calculate: The total idle time per cycle.

g)

Summary Introduction

To determine: The best workstation assignment to be made.

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Answer 3

Question

Chapter 9, Problem 20P

a)

Summary Introduction

To draw: The precedence diagram.

b)

Summary Introduction

To calculate: The highest allowable cycle time.

c)

Summary Introduction

To calculate: The daily production rate.

d)

Summary Introduction

To calculate: The theoretical minimum number of workstations.

e)

Summary Introduction

To calculate: The efficiency.

f)

Summary Introduction

To calculate: The total idle time per cycle.

g)

Summary Introduction

To determine: The best workstation assignment to be made.

Expert Solution & Answer

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Answer 4

Question

Chapter 9, Problem 20P

a)

Summary Introduction

To draw: The precedence diagram.

b)

Summary Introduction

To calculate: The highest allowable cycle time.

c)

Summary Introduction

To calculate: The daily production rate.

d)

Summary Introduction

To calculate: The theoretical minimum number of workstations.

e)

Summary Introduction

To calculate: The efficiency.

f)

Summary Introduction

To calculate: The total idle time per cycle.

g)

Summary Introduction

To determine: The best workstation assignment to be made.

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Answer 5

Chapter 9, Problem 20P

a)

Summary Introduction

To draw: The precedence diagram.

b)

Summary Introduction

To calculate: The highest allowable cycle time.

c)

Summary Introduction

To calculate: The daily production rate.

d)

Summary Introduction

To calculate: The theoretical minimum number of workstations.

e)

Summary Introduction

To calculate: The efficiency.

f)

Summary Introduction

To calculate: The total idle time per cycle.

g)

Summary Introduction

To determine: The best workstation assignment to be made.

Answer 6

Chapter 9, Problem 20P

a)

Summary Introduction

To draw: The precedence diagram.

Answer 7

Chapter 9, Problem 20P

a)

Summary Introduction

To draw: The precedence diagram.

Answer 8

b)

Summary Introduction

To calculate: The highest allowable cycle time.

Answer 9

b)

Summary Introduction

To calculate: The highest allowable cycle time.

Answer 10

c)

Summary Introduction

To calculate: The daily production rate.

Answer 11

c)

Summary Introduction

To calculate: The daily production rate.

Answer 12

d)

Summary Introduction

To calculate: The theoretical minimum number of workstations.

Answer 13

d)

Summary Introduction

To calculate: The theoretical minimum number of workstations.

Answer 14

e)

Summary Introduction

To calculate: The efficiency.

Answer 15

e)

Summary Introduction

To calculate: The efficiency.

Answer 16

f)

Summary Introduction

To calculate: The total idle time per cycle.

Answer 17

f)

Summary Introduction

To calculate: The total idle time per cycle.

Answer 18

g)

Summary Introduction

To determine: The best workstation assignment to be made.

Answer 19

g)

Summary Introduction

To determine: The best workstation assignment to be made.

Answer 20

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Answer 21

Expert Solution & Answer

Answer 22

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Answer 23

Ch. 9 - Prob. 1ED Ch. 9 - Prob. 1DQ Ch. 9 - Prob. 2DQ Ch. 9 - Prob. 3DQ Ch. 9 - Prob. 4DQ Ch. 9 - Prob. 5DQ Ch. 9 - Prob. 6DQ Ch. 9 - Prob. 7DQ Ch. 9 - Prob. 8DQ Ch. 9 - What are the requirements for a focused work...

To draw: The precedence diagram.

Solution Summary: The author explains how to draw the precedence diagram and calculate the highest allowable cycle time.

To draw: The precedence diagram.

To calculate: The highest allowable cycle time.

To calculate: The daily production rate.

To calculate: The theoretical minimum number of workstations.

To calculate: The efficiency.

To calculate: The total idle time per cycle.

To determine: The best workstation assignment to be made.

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Chapter 9 Solutions