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34 T/F & MC questions

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1. The basis for the mathematical analysis of waiting lines was formed from the work of
a. W. Edwards Deming
b. Joseph Juran
c. Frederick W. Taylor
d. K. Erlang

2. Which of the following is not a potential risk of projects
a. huge swings in resource requirements
b. extensive learning curve benefits
c. limited learning curve benefits
d. small customer base

3. Fluctuating demand, short production runs of a variety of products, and small to moderate quantities produced to customer order are characteristics most associated with
a. mass production
b. continuous production
c. projects
d. batch production

4. All of the following are advantages of continuous process systems except
a. the limited variety of product that can be processed
b. the ease of controlling the process
c. the large capacity
d. the high efficiency

5. As production systems move from projects to batch production to mass production to continuous production
a. demand volume increases
b. products become more customized
c. production systems become less automated
d. production systems become more flexible

6. Simulation is very limited in the number of operational problems to which it can be applied.

7. Another name for on-demand delivery is direct response.

8. Package delivery is for very large deliveries and is fast and reliable.

9. A Value added tax is defined as the total cost of producing a product and the value it adds to the supply chain partners.

10. Subcontracting is a feasible alternative for meeting demand if a supplier can reliably meet quality and time requirements.

11. Most companies use mixed strategies for production planning.

12. The process of breaking an aggregate plan into more detailed plans is referred to as
a. collaborative planning
b. hierarchical planning
c. disaggregation
d. rough-cut planning

13. The difference between planned production and customer orders is known as the
a. master production schedule
b. available-to-promise
c. capable-to-promise
d. disaggregate plan

14. Yield management can be used to address all of the following problems except
a. overbooking
b. portioning demand into fare classes
c. single order quantities
d. master production scheduling

15. To determine the demand for dependent items a forecast of their requirements is needed.

16. Products with simple structures typically do not need material requirements planning (MRP) to plan production or monitor inventory levels.

17. Information concerning on-hand quantities, on-order quantities, lot sizes, safety stock, lead time, and past usage figures can be found in the master production schedule (MPS).

18. Enterprise Resource Planning (ERP) is software that organizes and managers a company's business processes by sharing information across functional areas.

19. A manufacturing environment in which previously subassembled components are configured to order is called Assemble to order.

20. Enterprise Resource Planning (ERP) is software that helps integrate many of the supply chain components by sharing and organizing information and data among supply chain members.

21. RFID is capable of keeping track of items on planes and ships as the items move throughout the global supply chain.

22. Seasonal patterns are associated with the seasons of the year and cannot occur on a daily or weekly basis.

23. A forecast is never completely accurate.

24. A gradual, long-term up or down movement of demand is called a trend.

25. Costs resulting from lost sales because demand cannot be met are easier to determine than carrying costs or ordering costs.

26. The ABC classification system is a method for classifying inventory in which a small percentage of (A) items account for most of the inventory value.

27. Six Sigma quality is a statistical measure that equates to only 3.4 defects per million customer 'opportunities'.

28. The degree to which quality characteristics are designed into the product is known as reliability.

29. Subjective perceptions are not an important dimension of quality for manufactured products.

30. The dimension of quality related to the life-span of a product before replacement is known as durability.

31. Quality characteristics included in the product's design must be balanced against production costs.

32. Frequently, the number of arrivals per unit time to a service facility is described by a Poisson distribution.

33. Balking occurs in a waiting line when customers move from one line to another that they believe is moving faster.

34. The probability distribution that is most commonly used to describe service times is the negative exponential distribution.

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Solution Preview

I need help with the following study questions.

1. The basis for the mathematical analysis of waiting lines was formed from the work of
a. W. Edwards Deming
b. Joseph Juran
c. Frederick W. Taylor
d. K. Erlang
A Danish engineer that worked in Copenhagen. d. K. Erlang

2. Which of the following is not a potential risk of projects
a. huge swings in resource requirements
b. extensive learning curve benefits
c. limited learning curve benefits
d. small customer base
Benefit is not a potential risk. b.extensive learning curve benefits

3. Fluctuating demand, short production runs of a variety of products, and small to moderate quantities produced to customer order are characteristics most associated with
a. mass production
b. continuous production
c. projects
d. batch production
This flexibility is provided by batch production. d. batch production

4. All of the following are advantages of continuous process systems except
a. the limited variety of product that can be processed
b. the ease of controlling the process
c. the large capacity
d. the high efficiency
There cannot be frequent changes in the product. a.the limited variety of product that can be processed

5. As production systems move from projects to batch production to mass production to continuous production
a. demand volume increases
b. products become more customized
c. production systems become less automated
d. production systems become more flexible
These changes mean the volume increases. a. demand volume increases

6. Simulation is very limited in the number of operational problems to which it can be applied.
Simulation can be applied to a large number of operational problems. False.
7. Another name for ...

Solution Summary

34 T/F & MC questions are discussed in detail in this solution.

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Thermal physics and Ideal gas law

Question 1: The figure below is a plot of Fahrenheit temperature versus Celsius temperature.
(a) Is the value of the y-intercept found by setting (Helpful Hint: The y-intercept is found by setting your x-value to 0. Look at the graph and determine what your x and y-axis represent.)
1. TF = TC
2. TC = 0 or
3. TF = 0?
(b) Compute the value of the y-intercept. (Helpful Hint: Slope is equal to Δy/Δx. Choose 2 points on the line (try the initial and terminal points since they are labled). Identify the x and y coordinates of each point and solve for the slope.)
(c) What would be the slope and y-intercept if the graph were plotted the opposite way (Celsius versus Fahrenheit)? . (Helpful Hint: Take the reciprocal of the value for the slope in part b)

Question 2:If 2.4 m3 of a gas initially at STP is compressed to 1.6 m3 and its temperature raised to 30oC, what is the final pressure? (Helpful Hint: P(f) = P(i)V(i)T(f)/T(i) (where i=initial and f=final).)

(see attached file for diagram)

Question 3: A driver releases an air bubble of volume 2.0 cm3 from a depth of 15 m below the surface of a lake, where the temperature is 7.0oC. What is the volume of the bubble when it reaches just below the surface of the lake, where the temperature is 20oC? (Helpful Hint: Find the pressure (P) at a depth of 15 m by (P = ρgh). Next, find the pressure at 0.078 m below the surface. Finally, use the equation V(f) = P(i)V(i)T(f)/[T(i)P(f)])

Question 4: A steel beam 10m long is installed in a structure at 20oC. What are the beam's changes in length at the temperature extremes of -30oC to 45oC? (Helpful Hint: ΔL =LoαΔT for both cases.)

Question 5: A circular steel plate of radius 0.10 m is cooled from 350oC to 20oC. By what percentage does the plate's area decrease? (Helpful Hint: Use the equation ΔA/Ao = (2α)ΔT (remember that Ao = πr^2). Multiply the result by 100 to get the percentage.)

Question 6: Will heat always flow from an object having more energy to one having less energy? Justify your answer as completely as possible, demonstrating understanding of both 'heat' and 'energy'.

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