SCM CHAPTER 12

At the economic order quantity, holding costs are equal to product costs.

False

In the quantity discount model, the cost of acquiring goods (product cost) is not a factor in determining lot size.

False

Safety stock in inventory systems depends only on the average demand during the lead time.

False

The reorder point is the inventory level at which action is taken to replenish the stocked item.

True

ABC analysis is based upon the principle that: A) all items in inventory must be monitored very closely. B) there are usually a few critical items, and many items that are less critical. C) an item is critical if its usage is high. D) more time should be spent on class "C" items because there are many more of them. E) as with grade distributions in many MBA courses, there should be more medium-level "B" items than either "A" or "C" items.

B

Which of the following statements regarding the production order quantity model is TRUE? A) It applies only to items produced in the firm's own production departments. B) It relaxes the assumption that all the order quantity is received at one time. C) It relaxes the assumption that the demand rate is constant. D) It minimizes the total production costs. E) It minimizes inventory.

B

Most inventory models attempt to minimize: A) the likelihood of a stockout. B) the number of items ordered. C) total inventory-based costs. D) the number of orders placed. E) the safety stock.

C

Which of the following statements regarding control of service inventories is TRUE? A) Service inventory is a fictional concept, because services are intangible. B) Service inventory needs no safety stock, because there's no such thing as a service stockout. C) Effective control of all goods leaving the facility is one applicable technique. D) Service inventory has carrying costs but no setup costs. E) Good personnel selection, training, and discipline are easy.

C

All EXCEPT which of the following statements about ABC analysis are true? A) In ABC analysis, inventory may be categorized by measures other than dollar volume. B) ABC analysis categorizes on-hand inventory into three groups based on annual dollar volume. C) ABC analysis is an application of the Pareto principle. D) ABC analysis suggests that all items require the same high degree of control. E) ABC analysis suggests that there are the critical few and the trivial many inventory items.

D

Which of the following is NOT one of the four main types of inventory? A) raw material inventory B) work-in-process inventory C) maintenance/repair/operating supply inventory D) safety stock inventory E) finished-goods inventory

D

Which of the following statements about the basic EOQ model is FALSE? A) If the setup cost were to decrease, the EOQ would fall. B) If annual demand were to double, the number of orders per year would increase. C) If the ordering cost were to increase, the EOQ would rise. D) If annual demand were to double, the EOQ would also double. E) All of the above statements are true.

D

ABC analysis divides on-hand inventory into three classes, generally based upon which of the following? A) item quality B) unit price C) the number of units on hand D) annual demand E) annual dollar volume

E

The EOQ model is best suited for items whose demand is dependent on other products.

False

Which of the following items is mostly likely managed using a single-period order model? A) Christmas trees B) canned food at the grocery store C) automobiles at a dealership D) metal for a manufacturing process E) gas sold to a gas station

A

Q is to ________ systems as P is to ________ systems. A) fixed quantity, fixed period B) variable demand, constant demand C) variable lead time, variable demand D) variable quantity, variable period E) quality, price

A

The fixed-period inventory system requires more safety stock than a fixed-quantity system because: A) a stockout can occur during the review period as well as during the lead time. B) this model is used for products that have large standard deviations of demand. C) this model is used for products that require very high service levels. D) replenishment is not instantaneous. E) setup costs and holding costs are large.

A

The main trait of a single-period model is that: A) inventory has limited value after a certain period of time. B) it has the largest EOQ sizes. C) the order quantity should usually equal the expected value of demand. D) supply is limited. E) the cost of a shortage cannot be determined accurately.

A

Which of the following is a requirement of Q systems? A) perpetual inventory system B) constant order spacing C) variable lead time D) constant demand E) all of the above

A

Which of the following should be higher in P systems than Q systems? A) lead time B) demand C) order size D) order spacing E) safety stock

E

An advantage of the fixed-period inventory system is that: A) safety stock will be lower than it would be under a fixed-quantity inventory system. B) there is no physical count of inventory items when an item is withdrawn. C) no inventory records are required. D) orders usually are for smaller order quantities. E) the average inventory level is reduced.

B

Cycle counting: A) is a process by which inventory records are verified once a year. B) eliminates annual inventory adjustments. C) provides a measure of inventory turnover. D) assumes that all inventory records must be verified with the same frequency. E) assumes that the most frequently used items must be counted more frequently.

B

The two most basic inventory questions answered by the typical inventory model are: A) timing of orders and cost of orders. B) order quantity and cost of orders. C) timing of orders and order quantity. D) order quantity and service level. E) ordering cost and carrying cost.

C

ABC analysis classifies inventoried items into three groups, usually based on annual units or quantities used.

False

A disadvantage of the fixed-period inventory system is that: A) it involves higher ordering costs than the fixed quantity inventory system. B) additional inventory records are required. C) the average inventory level is decreased. D) since there is no count of inventory during the review period, a stockout is possible. E) orders usually are for larger quantities.

D

If demand is not uniform and constant, then stockout risks can be controlled by: A) increasing the EOQ. B) spreading annual demand over more frequent, but smaller, orders. C) raising the selling price to reduce demand. D) adding safety stock. E) reducing the reorder point.

D

The proper quantity of safety stock is typically determined by: A) using a single-period model. B) carrying sufficient safety stock so as to eliminate all stockouts. C) multiplying the EOQ by the desired service level. D) setting the level of safety stock so that a given stockout risk is not exceeded. E) minimizing total costs.

D

The purpose of safety stock is to: A) replace failed units with good ones. B) eliminate the possibility of a stockout. C) eliminate the likelihood of a stockout due to erroneous inventory tally. D) control the likelihood of a stockout due to variable demand and/or lead time. E) protect the firm from a sudden decrease in demand.

D

Which of the following statements about ABC analysis is FALSE? A) ABC analysis is based on the presumption that controlling the few most important items produces the vast majority of inventory savings. B) In ABC analysis, "A" items should have tighter physical inventory control than "B" or "C" items have. C) In ABC analysis, forecasting methods for "C" items may be less sophisticated than for "A" items. D) ABC analysis is based on the presumption that all items must be tightly controlled to produce important cost savings. E) Criteria other than annual dollar volume, such as high holding cost or delivery problems, can determine item classification in ABC analysis.

D

ABC analysis is based on the presumption that carefully controlling all items is necessary to produce important inventory savings.

False

What is the difference between P and Q inventory systems? A) order size B) order spacing C) maximum service level D) lead time length E) A and B

E

Which of the following is a function of inventory? A) to decouple various parts of the production process B) to provide a selection of goods for anticipated customer demand and to separate the firm from fluctuations in that demand C) to take advantage of quantity discounts D) to hedge against inflation E) All of the above are functions of inventory.

E

Which of the following is an element of inventory holding costs? A) housing costs B) material handling costs C) investment costs D) pilferage, scrap, and obsolescence E) All of the above are elements of inventory holding costs.

E

A major challenge in inventory management is to maintain a balance between inventory investment and customer service.

True

If setup costs are reduced by substantial reductions in setup time, the production order quantity is also reduced.

True

In ABC analysis, "A" items are the most tightly controlled.

True

In the production order quantity (POQ) model, inventory does not arrive in a single moment but flows in at a steady rate, resulting in a larger production/order quantity than in an otherwise identical EOQ problem.

True

In the quantity discount model, it is possible to have a cost-minimizing solution where annual ordering costs do not equal annual carrying costs.

True

One advantage of cycle counting is that it maintains accurate inventory records.

True

One function of inventory is to take advantage of quantity discounts.

True

Retail inventory that is unaccounted for between receipt and time of sale is known as shrinkage.

True

Service level is: A) the probability of stocking out. B) the probability of not stocking out. C) something that should be minimized in retail. D) calculated as the cost of a shortage divided by (the cost of shortage + the cost of overage) for single-period models. E) B and D

e