Question 1

In the lean philosophy, the larger the lot size, the easier it is to schedule.

Accepted Answer

A) True 
 B)False  False

Question 2

Engineering changes should not be made in the six-month period following the introduction of a new product.

Accepted Answer

A) True 
 B)False

Question 3

Fast and simple are two common threads that run through the four building blocks of lean operations.

Accepted Answer

A) True 
 B)False

Question 4

The average time before breakdown of a machine is normally distributed and has a mean of nine weeks and a standard deviation of 1.5 weeks. If breakdown cost averages $1,500 and preventive maintenance costs $500, what is the optimal preventive maintenance interval?

Accepted Answer

A)  3.8 weeks
B)  8.4 weeks
C)  9.6 weeks
D)  6.9 weeks
E)  7.2 weeksF) A) and C)
G) C) and D)

Question 5

Managers considering an operations strategy reflecting the lean philosophy of operations should recognize that lean

Accepted Answer

A)  is most suited for nonrepetitive manufacturing.
B)  cannot be implemented sequentially.
C)  requires a wholesale commitment from the outset.
D)  may leave their company vulnerable to supply chain disruptions.
E)  All of these choices are correct.F) All of the above
G) C) and D)

Question 6

Which of the following would not contribute to making services more lean?

Accepted Answer

A)  Train workers so they can handle variety in the tasks they perform.
B)  Increase the flexibility of the service system.
C)  Have service workers handle multiple tasks simultaneously.
D)  Standardize the work methods for providing the service.
E)  Simplify the service process.F) C) and D)
G) A) and E) C

Question 7

In the lean approach, inventories are reduced gradually, instead of eliminating inventories as rapidly as possible.

Accepted Answer

A) True 
 B)False

Question 8

Lean purchasing requires frequent contract bidding by multiple sources to ensure the buyer of competitive prices.

Accepted Answer

A) True 
 B)False

Question 9

A potential obstacle to conversion to a lean system is(I) lack of management commitment(II) lack of worker cooperation(III) supplier resistance(IV) insufficient space to store the increased inventories

Accepted Answer

A)  only I
B)  only I and II
C)  only II and III
D)  only I, II, and III
E)  only II, III, and IVF) C) and E)
G) C) and D)

Question 10

Kanban is the Japanese term for autonomation.

Accepted Answer

A) True 
 B)False

Question 11

The use of small lot sizes in lean operations is in conflict with the EOQ approach since setup costs tend to be significantly higher than holding costs.

Accepted Answer

A) True 
 B)False

Question 12

In a pull system, the accumulation of excessive inventory in front of a workstation is avoided even if there are problems such as equipment failure at that workstation which prevent it from completing its work.

Accepted Answer

A) True 
 B)False

Question 13

Ideally, preventive maintenance will be performed before a breakdown or failure.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is not a reason for having machines and equipment in good operating condition?

Accepted Answer

A)  lower the production processing
B)  no added service or production costs
C)  maintain high quality
D)  avoid missed delivery dates
E)  avoid production or service disruptionsF) B) and E)
G) A) and E)

Question 15

Preventive maintenance will eliminate the need to carry supplies of spare parts.

Accepted Answer

A) True 
 B)False

Question 16

This is considered an important issue when dealing with preventative maintenance.

Accepted Answer

A)  repair costs
B)  frequency
C)  seasonality
D)  timing of breakdown
E)  cost of trainingF) A) and E)
G) A) and B) B

Question 17

Breakdown maintenance is _____________; preventive maintenance is _________.

Accepted Answer

A)  reactive; proactive
B)  proactive; reactive
C)  expensive; inexpensive
D)  inexpensive; expensive
E)  easy; hardF) A) and B)
G) C) and E)

Question 18

For a company with a product mix of 40 percent of product A and 30 percent each of products B and C, which of the following mixed-model sequences best reflects the lean philosophy?

Accepted Answer

A)  AABBCCAABC
B)  ABCABCABCA
C)  AAAABBBCCC
D)  BCABCABCAB
E)  BBBAACCCAAF) C) and E)
G) None of the above

Question 19

The major approaches used in plans to deal with breakdowns include all of the following except

Accepted Answer

A)  standby equipment.
B)  inventories of spare parts.
C)  operator repair of minor problems.
D)  readily available repair personnel.
E)  All are major approaches.F) B) and D)
G) None of the above

Question 20

A functioning MRP system is required prior to adopting lean planning and control systems.

Accepted Answer

A) True 
 B)False

Exam 14: Jit and Lean Operations

In the lean philosophy, the larger the lot size, the easier it is to schedule.

Correct AnswerverifiedFalse

Engineering changes should not be made in the six-month period following the introduction of a new product.

Correct AnswerverifiedShow Answer

Fast and simple are two common threads that run through the four building blocks of lean operations.

Correct AnswerverifiedShow Answer

The average time before breakdown of a machine is normally distributed and has a mean of nine weeks and a standard deviation of 1.5 weeks. If breakdown cost averages $1,500 and preventive maintenance costs $500, what is the optimal preventive maintenance interval?

Correct AnswerverifiedShow Answer

Managers considering an operations strategy reflecting the lean philosophy of operations should recognize that lean

Correct AnswerverifiedShow Answer

Which of the following would not contribute to making services more lean?

Correct AnswerverifiedC

In the lean approach, inventories are reduced gradually, instead of eliminating inventories as rapidly as possible.

Correct AnswerverifiedShow Answer

Lean purchasing requires frequent contract bidding by multiple sources to ensure the buyer of competitive prices.

Correct AnswerverifiedShow Answer

A potential obstacle to conversion to a lean system is(I) lack of management commitment(II) lack of worker cooperation(III) supplier resistance(IV) insufficient space to store the increased inventories

Correct AnswerverifiedShow Answer

Kanban is the Japanese term for autonomation.

Correct AnswerverifiedShow Answer

The use of small lot sizes in lean operations is in conflict with the EOQ approach since setup costs tend to be significantly higher than holding costs.

Correct AnswerverifiedShow Answer

In a pull system, the accumulation of excessive inventory in front of a workstation is avoided even if there are problems such as equipment failure at that workstation which prevent it from completing its work.

Correct AnswerverifiedShow Answer

Ideally, preventive maintenance will be performed before a breakdown or failure.

Correct AnswerverifiedShow Answer

Which of the following is not a reason for having machines and equipment in good operating condition?

Correct AnswerverifiedShow Answer

Preventive maintenance will eliminate the need to carry supplies of spare parts.

Correct AnswerverifiedShow Answer

This is considered an important issue when dealing with preventative maintenance. <u></u>

Correct AnswerverifiedB

Breakdown maintenance is _____________; preventive maintenance is _________.

Correct AnswerverifiedShow Answer

For a company with a product mix of 40 percent of product A and 30 percent each of products B and C, which of the following mixed-model sequences best reflects the lean philosophy?

Correct AnswerverifiedShow Answer

The major approaches used in plans to deal with breakdowns include all of the following except

Correct AnswerverifiedShow Answer

A functioning MRP system is required prior to adopting lean planning and control systems.

Correct AnswerverifiedShow Answer

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False

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C

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B

Breakdown maintenance is _____; preventive maintenance is _.

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