Question 1

Identify three major sources of variability.

Accepted Answer

1.Poor production processes that allow employees and suppliers to produce improper quantities or late or non-conforming units 2.Unknown customer demands 3.Incomplete or inaccurate drawings,specifications,and bills of material

Question 2

A manufacturer took the following actions to reduce inventory.Which of these is generally not accepted as a JIT action?

Accepted Answer

A) It used a pull system to move inventory. 
B) It produced in ever smaller lots. 
C) It required deliveries directly to the point of use. 
D) It picked the supplier that offered the lowest price based on quantity discounts. 
E) It worked to reduce the company's in-transit inventory. 
A) It used a pull system to move inventory. 
B) It produced in ever smaller lots. 
C) It required deliveries directly to the point of use. 
D) It picked the supplier that offered the lowest price based on quantity discounts. 
E) It worked to reduce the company's in-transit inventory. D

Question 3

JIT makes quality cheaper because:

Accepted Answer

A) the cost of low quality can be hidden as inventory cost. 
B) JIT adds more buffers to the system. 
C) JIT prevents long runs of defects. 
D) B and C 
E) A,B and C 
A) the cost of low quality can be hidden as inventory cost. 
B) JIT adds more buffers to the system. 
C) JIT prevents long runs of defects. 
D) B and C 
E) A,B and C C

Question 4

Variability in manufacturing can occur because engineering drawings or specifications are incomplete or inaccurate.

Accepted Answer

A) True 
 B)False

Question 5

Which one of the following statements is TRUE regarding JIT inventory?

Accepted Answer

A) It exists just in case something goes wrong. 
B) It is the minimum inventory necessary to keep a perfect system running. 
C) It hides variability. 
D) It is minimized with large lot production. 
E) It increases if setup costs decrease. 
A) It exists just in case something goes wrong. 
B) It is the minimum inventory necessary to keep a perfect system running. 
C) It hides variability. 
D) It is minimized with large lot production. 
E) It increases if setup costs decrease.

Question 6

JIT suppliers have concerns that the JIT firm's demands for small lot sizes are simply a way of transferring holding cost from the JIT firm to the suppliers.

Accepted Answer

A) True 
 B)False

Question 7

Which one of the following scenarios represents the use of a kanban to reduce inventories?

Accepted Answer

A) A supervisor tells the operators to stay busy and start producing parts for next month. 
B) A "supplier" work center signals the downstream workstation that a batch has been completed. 
C) A supervisor signals to several work centers that the production rate should be changed. 
D) A "customer" work center signals to the "supplier" workstation that more parts are needed. 
E) An operator asks the next station's operator to help him fix his machine. 
A) A supervisor tells the operators to stay busy and start producing parts for next month. 
B) A "supplier" work center signals the downstream workstation that a batch has been completed. 
C) A supervisor signals to several work centers that the production rate should be changed. 
D) A "customer" work center signals to the "supplier" workstation that more parts are needed. 
E) An operator asks the next station's operator to help him fix his machine.

Question 8

TPS stands for Total Production Streamlining.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following statements regarding a pull system is TRUE?

Accepted Answer

A) Large lots are pulled from upstream stations. 
B) Work is pulled to the downstream stations before it is actually needed. 
C) Manufacturing cycle time is increased. 
D) Problems become more obvious. 
E) None of the above is true of a pull system. 
A) Large lots are pulled from upstream stations. 
B) Work is pulled to the downstream stations before it is actually needed. 
C) Manufacturing cycle time is increased. 
D) Problems become more obvious. 
E) None of the above is true of a pull system.

Question 10

Manufacturing cycle time is best defined as the:

Accepted Answer

A) length of the work shift,expressed in minutes per day. 
B) time it takes a unit to move from one workstation to the next. 
C) time between the start of one unit and the start of the next unit. 
D) sum of all the task times to make one unit of a product. 
E) time from raw materials receipt to finished product exit. 
A) length of the work shift,expressed in minutes per day. 
B) time it takes a unit to move from one workstation to the next. 
C) time between the start of one unit and the start of the next unit. 
D) sum of all the task times to make one unit of a product. 
E) time from raw materials receipt to finished product exit.

Question 11

Which one of the following is NOT a layout tactic in a JIT environment?

Accepted Answer

A) work cells for families of products 
B) fixed equipment 
C) minimizing distance 
D) little space for inventory 
E) poka-yoke devices 
A) work cells for families of products 
B) fixed equipment 
C) minimizing distance 
D) little space for inventory 
E) poka-yoke devices

Question 12

One goal of JIT partnerships is the removal of in-plant inventory by delivery in small lots directly to the using department as needed.

Accepted Answer

A) True 
 B)False

Question 13

A certain product has been effectively managed in the past,according to its managers.The previous technique used the economic production quantity model,and resulted in an optimum lot size of 100.For this product,setup time is directly proportional to setup cost,and setup time is currently 40 minutes per batch.How much must setup time decline in order for the lot size to fall to 50 units? 25 units? 10 units?

Accepted Answer

Complete data for the problem is not nec

Question 14

Daily usage of a part is 20 in a facility that operates 250 days of the year.Setup cost is $20 and annualized carrying cost is $210.Production of this part occurs at the rate of 50 per day when production of the part is underway.Lead time is 1 day; safety stock is 1/2 day's production.What is the optimum kanban size,and number of kanbans?

Accepted Answer

The answer of Daily usage of a part is 20...

Question 15

The ________ is the time between the arrival of raw materials and the shipping of finished products.

Accepted Answer

manufactur

Question 16

The number of kanbans decreases as safety stock is increased.

Accepted Answer

A) True 
 B)False

Question 17

________ is any deviation from the optimum process that delivers perfect product on time,every time.

Accepted Answer

The answer of ________ is any deviation from the optimum...

Question 18

________ involve scheduling products so that each day's production meets the demand for that day.

Accepted Answer

The answer of ________ involve scheduling products so that each...

Question 19

Which of the following is generally found in most lean environments?

Accepted Answer

A) a push or pull system,depending upon the rate of demand 
B) a push system for high margin items and a pull system for low margin items 
C) a push system for purchased parts and a pull system for manufactured parts 
D) push systems 
E) pull systems 
A) a push or pull system,depending upon the rate of demand 
B) a push system for high margin items and a pull system for low margin items 
C) a push system for purchased parts and a pull system for manufactured parts 
D) push systems 
E) pull systems

Question 20

What are the five reasons given by suppliers for their reluctance to enter into JIT systems?

Accepted Answer

The five reasons are desire fo

Exam 17: Jit, tps, and Lean Operations

Identify three major sources of variability.

A manufacturer took the following actions to reduce inventory.Which of these is generally not accepted as a JIT action?

JIT makes quality cheaper because:

Variability in manufacturing can occur because engineering drawings or specifications are incomplete or inaccurate.

Which one of the following statements is TRUE regarding JIT inventory?

JIT suppliers have concerns that the JIT firm's demands for small lot sizes are simply a way of transferring holding cost from the JIT firm to the suppliers.

Which one of the following scenarios represents the use of a kanban to reduce inventories?

TPS stands for Total Production Streamlining.

Which of the following statements regarding a pull system is TRUE?

Manufacturing cycle time is best defined as the:

Which one of the following is NOT a layout tactic in a JIT environment?

One goal of JIT partnerships is the removal of in-plant inventory by delivery in small lots directly to the using department as needed.

The ________ is the time between the arrival of raw materials and the shipping of finished products.

The number of kanbans decreases as safety stock is increased.

________ is any deviation from the optimum process that delivers perfect product on time,every time.

________ involve scheduling products so that each day's production meets the demand for that day.

Which of the following is generally found in most lean environments?

What are the five reasons given by suppliers for their reluctance to enter into JIT systems?

Operations and Productivity

Operations Strategy in a Global Environment

Project Management

Forecasting

Design of Goods and Services

Managing Quality

Process Strategy

Capacity and Constraint Management

Location Strategies

Layout Strategies

Human Resources, job Design, and Work Measurement

Supply Chain Management

Inventory Management

Aggregate Planning and Sop

Material Requirements Planning Mrpand Erp

Short-Term Scheduling

Maintenance and Reliability

Sustainability in the Supply Chain

Statistical Process Control

Supply Chain Management Analytics

Decision-Making Tools

Linear Programming

Transportation Models

Waiting-Line Models

Learning Curves

Simulation

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