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Chapter 15
Lean Operations

True / False Questions

1. In lean operations, input resources arrive for processing just as the preceding batch is completed. TRUE

Difficulty: Easy
TLO: 1
Taxonomy: Knowledge

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

Difficulty: Easy
TLO: 5
Taxonomy: Knowledge

3. In a lean environment, anything not essential to the product or process is viewed as waste. TRUE

Difficulty: Easy
TLO: 2
Taxonomy: Knowledge

4. The ultimate goal of lean operations is a system characterized by the smooth, rapid flow of materials. TRUE

Difficulty: Easy
TLO: 2
Taxonomy: Knowledge

5. Although inventories are maintained, the goal of lean operations is to minimize safety stock. FALSE

Difficulty: Easy
TLO: 2
Taxonomy: Knowledge

6. Lean operations are unable to easily handle changes of output or product mix. FALSE

Difficulty: Easy
TLO: 4
Taxonomy: Knowledge

7. In the lean philosophy, producing more than two order quantities represents waste. FALSE

Difficulty: Medium
TLO: 3
Taxonomy: Knowledge

8. The four building blocks of lean operations are: product design, process design, personnel/organizational elements, and manufacturing planning and control. TRUE

Difficulty: Easy
TLO: 3
Taxonomy: Knowledge

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

Difficulty: Easy
TLO: 3
Taxonomy: Knowledge

10. Value-stream mapping is a technique focused on finding new ways of adding value for critical stakeholders such as customers. FALSE

Difficulty: Easy
TLO: 7
Taxonomy: Knowledge

11. If a firm's product mix is 60% of product A and 20% each of products B and C, an optimal mix-model production schedule would be successive sequences of AAABC. FALSE

Difficulty: Medium
TLO: 3
Taxonomy: Application

12. Quality and highly capable production systems are requirements for the successful implementation of lean operations. TRUE

Difficulty: Medium
TLO: 5
Taxonomy: Knowledge

13. The small lot-sizing policy works well in a situation where both holding costs and setup costs are high. FALSE

Difficulty: Hard
TLO: 5
Taxonomy: Synthesis

14. 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. FALSE

Difficulty: Medium
TLO: 5
Taxonomy: Knowledge

15. A basic requirement for operating with low inventories in lean systems is that major system problems must already have been solved and new problems will be solved as they appear. TRUE

Difficulty: Hard
TLO: 4
Taxonomy: Knowledge

16. A benefit of small lot sizes in lean systems is that each product is produced less frequently. FALSE

Difficulty: Easy
TLO: 4
Taxonomy: Knowledge

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

Difficulty: Easy
TLO: 5
Taxonomy: Knowledge

18. Setup time and its associated cost can often be reduced by the use of group technology. TRUE

Difficulty: Medium
TLO: 4
Taxonomy: Knowledge

19. Lean systems often use layouts that are based on group technology product requirements. TRUE

Difficulty: Medium
TLO: 5
Taxonomy: Knowledge

20. The goal of lean operations is to produce output using fewer resources than traditional planning systems. TRUE

Difficulty: Easy
TLO: 2
Taxonomy: Knowledge

21. "Autonomation" indicates that the firm is attempting to reduce its dependence on automated equipment. FALSE

Difficulty: Easy
TLO: 3
Taxonomy: Knowledge

22. "Preventive maintenance" is additional maintenance done immediately after a breakdown has occurred to help prevent any further breakdowns. FALSE

Difficulty: Easy
TLO: 3
Taxonomy: Knowledge

23. In the lean...
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