1. "Total productive maintenance" is best described as:

Select one:

a. extending preventative maintenance back to design.

b. avoiding all breakdown maintenance.

c. simultaneously changing all components that are subject to a breakdown.

d. doing a great deal of preventative maintenance to try to avoid breakdown maintenance.

e. having workers that operate equipment responsible for performing maintenance.

2. Which one is False?

Select one:

a. Aggregate operations planning is not an effective technique for organizations that experience seasonal fluctuations in demand.

b. Sales and operations planning is typically performed once a year with monthly updates.

c. The goal of aggregate operations planning is to achieve a production plan that will satisfy total forecast demand at minimum cost.

d. Aggregate operations planning is used to establish general levels of employment, production levels and changes in inventory levels over an intermediate range of time.

e. For aggregate planning, groups of similar products are lumped together and treated as equivalent products for planning purposes.

3. For the constraints given below, which point is in the feasible solution space of this maximization problem?(1) 14x + 6y <= 42 (2) x - y <= 3

Select one:

a. x = 2, y = 8

b. x = 1, y = 5

c. x = 2, y = 1

d. x = -1, y = 1

e. x = 4, y = 4

4. The local operations manager for the Canada Revenue Agency decides whether to hire one, two, or three temporary tax examiners for the upcoming tax season. She estimates that net revenues (in thousands of dollars) will vary with how well taxpayers comply with the new tax code just passed by Parliament, as follows:NUMBEROFEXAMINERSCOMPLIANCE LOW NORMAL HIGHOne505050Two1006020Three15070-10__If she feels the chances of low, medium, and high compliance are 20%, 30%, and 50%, respectively, what is her expected value of perfect information?

Select one:

a. 16000

b. 50000

c. 26000

d. 46000

e. 48000

1. A bank of ten machines requires regular periodic service. Machine running time and service time are both exponential. Machines run for an average of 44 minutes between service requirements, and service time averages 6 minutes per machine.

What is the probability that a machine will have to wait for service with two operators?

Select one:

a. 10

b. 346

c. 910

d. 90

e. 654

2. The manager of the Quick Stop Corner Convenience Store (which never closes) sells four cases of Stein beer each day. Order costs are $20.00 per order, and Stein beer costs $8.00 per six-pack (each case of Stein beer contains four six-packs). Orders arrive three days from the time they are placed. Daily holding costs are equal to five percent of the cost of a Stein beer case.

What is the economic order quantity for Stein beer?

Select one:

a. 80 cases

b. 10 cases

c. 8 cases

d. 4 cases

e. 20 cases

3. Which one is False?

Select one:

a. Manufacturing cells in JIT systems process similar parts for a product.

b. "Group technology" can be used to reduce setup cost and time in a JIT conversion.

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

d. Setup time and cost can often be reduced by the use of group technology.

e. A benefit of JIT is the flexibility to handle a mix of products within a short time frame

4. The production planner for Fine Coffees, Inc. produces two coffee blends: American (A) and British (B). Two of his resources are constrained: Columbia beans, of which he can get at most 300 pounds (4,800 ounces) per week; and Dominican beans, of which he can get at most 200 pounds (3,200 ounces) per week. Each pound of American blend coffee requires 12 ounces of Colombian beans and 4 ounces of Dominican beans; while a pound of British blend coffee uses 8 ounces of each type of bean. Profits for the American blend are $2.00 per pound, and profits for the British blend are $1.00 per pound. Using the Excel for Linear Programming, what are optimal weekly profits?

Select one:

a. 700

b. 400

c. 0

d. 800

e. 500

5. A single bay car wash with a Poisson arrival rate and an exponential service time has cars arriving an average of 10 minutes apart, and an average service time of four minutes. The server utilization is:

Select one:

a. 67

b. 2.5

c. 24

d. 40

e. 5

6. The development and application of MRP is primarily associated with two developments: (1) managers recognizing the need to differentiate between independent and dependent demand, and (2) _____.

Select one:

a. development of the EOQ model

b. the need for inventory control systems

c. increased reliance on computers for record keeping

d. accounting systems

e. the emergence of ERP systems

7. An item with a holding cost of $400 per year can be shipped by air in 1 day, costing $250, or by ground in 5 days, costing $150. Assuming the holding costs of $400 per year are based on an operational year of 365 days, which is cheaper and by how much?

Select one:

a. Ground is cheaper by $95.62

b. Ground is cheaper by $60.00

c. Ground is cheaper by $70.89

d. Ground and air have the same total cost

e. Air is cheaper by $100.

8. Which one is True?

Select one:

a. The principal objective of inventory management is to maximize customer service levels by ensuring items are available at all times.

b. all

c. Retail stores typically hold three types of inventory: raw materials, work-in-process, and finished goods.

d. The overall objective of inventory management is to achieve satisfactory levels of customer service by having sufficient quantities while keeping inventory costs reasonable.

e. A lower inventory turnover ratio indicates more efficient use of inventories.

9. The manager of the Quick Stop Corner Convenience Store (which never closes) sells four cases of Stein beer each day. Order costs are $20.00 per order, and Stein beer costs $8.00 per six-pack (each case of Stein beer contains four six-packs). Orders arrive three days from the time they are placed. Daily holding costs are equal to five percent of the cost of a Stein beer case.

If he were to order 16 cases of Stein beer at a time, what would be the length of an order cycle?

Select one:

a. 20 days

b. 1 day

c. 0.25 days

d. 4 days

e. 3 days

10. For the constraints given below, which point is in the feasible solution space of this maximization problem?(1) 14x + 6y <= 42 (2) x - y <= 3

Select one:

a. x = 4, y = 4

b. x = 2, y = 8

c. x = -1, y = 1

d. x = 1, y = 5

e. x = 2, y = 1