ISDS 3115 FINAL EXAM

annual orders EOQ

annual demand / EOQ

ABC analysis divides on-hand inventory into three classes, generally based upon a. item quality b. unit price c. the number of units on hand d. annual demand e. annual dollar volume

annual dollar volume

The two most basic inventory questions answered by the typical inventory model are a. timing and cost of orders b. quantity and cost of orders c. timing and quantity of orders d. order quantity and service level e. ordering cost and carrying cost

timing and quantity of orders

In the make-or-buy decision, one of the reasons for making is a. to reduce inventory costs b. to obtain technical or management ability c. inadequate capacity d. reciprocity e. to assure adequate supply in terms of quantity

to assure adequate supply in terms of quantity

Which of the following would not generally be a motive for a firm to hold inventories? a. to decouple or separate parts of the production process b. to provide a stock of goods that will provide a selection for customers c. to take advantage of quantity discounts d. to minimize holding costs e. All of the above are functions of inventory.

to minimize holding costs

In the make-or-buy decision, which of the following is not a reason for buying? a. inadequate capacity b. to obtain desired quality c. patents or trade secrets d. lower inventory costs e. All of the above are reasons for buying

to obtain desired quality

Which of the following best describes vertical integration? a. to sell products to a supplier or a distributor b. to develop the ability to produce products which complement the original product c. to produce goods or services previously purchased d. to develop the ability to produce the specified good more efficiently than before e. to build long-term partnerships with a few suppliers

to produce goods or services previously purchased

With the growth of JIT, which of the following distribution systems has been the biggest loser? a. trucking b. railroads c. airfreight d. waterways e. pipelines

waterways

For a certain item, the cost-minimizing order quantity obtained with the basic EOQ model was 200 units and the total annual inventory (carrying and setup) cost was $600. The inventory carrying cost per unit per year for this item is a. $1.50 b. $2.00 c. $3.00 d. $150.00 e. not enough data to determine

$3.00

A product has demand of 4000 units per year. Ordering cost is $20 and holding cost is $4 per unit per year. The EOQ model is appropriate. The cost-minimizing solution for this product will cost _____ per year in total annual inventory costs. a. $400 b. $800 c. $1200 d. zero; this is a class C item e. cannot be determined because unit price is not known

$800

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

. total inventory based costs

A certain type of computer costs $1,000, and the annual holding cost is 25%. Annual demand is 10,000 units, and the order cost is $150 per order. What is the approximate economic order quantity? a. 16 b. 70 c. 110 d. 183 e. 600

110

If daily demand is normally distributed with a mean of 15 and standard deviation of 5, and lead time is constant at 4 days, 90 percent service level will require safety stock of approximately a. 7 units b. 10 units c. 13 units d. 16 units e. 26 units

13 units`

In the basic EOQ model, if D=6000 per year, S=$100, H=$5 per unit per month, the economic order quantity is approximately a. 24 b. 100 c. 141 d. 490 e. 600

141

In a safety stock problem where both demand and lead time are variable, demand averages 150 units per day with a daily standard deviation of 16, and lead time averages 5 days with a standard deviation of 1 day. The standard deviation of demand during lead time is approximately a. 15 units b. 100 units c. 154 units d. 500 units e. 13,125 unit

154 units

The assumptions of the production order quantity model are met in a situation where annual demand is 3650 units, setup cost is $50, holding cost is $12 per unit per year, the daily demand rate is 10 and the daily production rate is 100. The production order quantity for this problem is approximately a. 139 b. 174 c. 184 d. 365 e. 548

184

A product has demand of 4000 units per year. Ordering cost is $20 and holding cost is $4 per unit per year. The cost-minimizing solution for this product is to order a. all 4000 units at one time b. 200 units per order c. every 20 days d. 10 times per year e. none of the above

200 units per order

A production order quantity problem has daily demand rate = 10 and daily production rate = 50. The production order quantity for this problem is approximately 612 units. The average inventory for this problem is approximately a. 61 b. 245 c. 300 d. 306 e. 490

245

A specific product has demand during lead time of 100 units, with a standard deviation of 25 units. What safety stock (approximately) provides a 95% service level? a. 41 b. 55 c. 133 d. 140 e. 165

41

If daily demand is constant at 10 units per day, and lead time averages 12 days with a standard deviation of 3 days, 95 percent service requires a safety stock of approximately a. 28 units b. 30 units c. 49 units d. 59 units e. 114 units

49 units

What is the average capacity utilization in the motor carrier (trucking) industry? a. 25% b. 50% c. 75% d. 95% e. 99%

50%

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 are tightly controlled, have accurate records, and receive regular review by major decision makers. c. In ABC analysis, "C" Items have minimal records, periodic review, and simple controls. d. ABC analysis is based on the presumption that all items must be tightly controlled to produce important cost savings. e. All of the above statements are true

ABC analysis is based on the presumption that all items must be tightly controlled to produce important cost savings.

Which of these statements about the production order quantity model is false? a. The production order quantity model is appropriate when the assumptions of the basic EOQ model are met, except that receipt is noninstantaneous. b. Because receipt is noninstantaneous, some units are used immediately, not stored in inventory. c. Average inventory is less than one-half of the production order quantity. d. All else equal, the smaller the ratio of demand rate to production rate, the larger is the production order quantity. e. None of the above is false.

All else equal, the smaller the ratio of demand rate to production rate, the larger is the production order quantity.

Which of the following are elements 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 cost.

All of the above are elements of inventory holding cost.

Which of the following is a function of inventory? a. to decouple or separate parts of the production process b. to decouple the firm from fluctuations in demand and provide a stock of goods that will provide a selection for customers c. to take advantage of quantity discounts d. to hedge against inflation e. All of the above are functions of inventory.

All of the above are functions of inventory.

In supply chain management, ethical issues a. are particularly important because of the enormous opportunities for abuse b. may be guided by company rules and codes of conduct c. become more complex the more global is the supply chain d. may be guided by the principles and standards of the Institute for Supply Management e. All of the above are true

All of the above are true

Outsourcing a. transfers traditional internal activities to outside vendors b. utilizes the efficiency which comes with specialization c. lets the outsourcing firm focus on its critical success factors d. None of the above are true of outsourcing. e. All of the above are true of outsourcing

All of the above are true of outsourcing

Which of the following statements regarding the reorder point is true? a. The reorder point is that quantity that triggers an action to restock an item. b. There is a reorder point even if lead time and demand during lead time are constant. c. The reorder point is larger than d x L if safety stock is present. d. The fixed-period model has no reorder point. e. All of the above are true.

All of the above are true.

average inventory EOQ

EOQ / 2

An inventory decision rule states "when the inventory level goes down to 14 gearboxes, 100 gearboxes will be ordered." Which of the following statements is true? a. One hundred is the reorder point, and 14 is the order quantity. b. Fourteen is the reorder point, and 100 is the order quantity. c. The number 100 is a function of demand during lead time. d. Fourteen is the safety stock, and 100 is the reorder point. e. None of the above is true

Fourteen is the reorder point, and 100 is the order quantity.

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.

It relaxes the assumption that all the order quantity is received at one time

Which one of the following statements about purchasing is true? a. The cost of purchases as a percent of sales is often small. b. Purchasing provides a major opportunity for price increases. c. Purchasing is always more efficient than making an item. d. Purchasing has an impact on the quality of the goods and services sold. e. Competitive bidding is a major factor in long-term cost reductions

Purchasing has an impact on the quality of the goods and services sold.

Which of the following statements is true regarding the leverage of supply chain savings? a. Supply chain leverage is about the same for all industries. b. Supply chain savings exert more leverage as the firm's purchases are a smaller percent of sales. c. Supply chain savings exert more leverage as the firm has a lower net profit margin. d. Supply chain leverage depends only upon the percent of sales spent in the supply chain. e. None of the above is true.

Supply chain savings exert more leverage as the firm has a lower net profit margin.

Which of the following statements regarding Amazon.com is false? a. The company was opened by Jeff Bezos in 1995. b. The company was founded as, and still is, a "virtual retailer" with no inventory. c. The company is now a world-class leader in warehouse management and automation. d. The company uses both United Parcel Service and the U.S. Postal Service as shippers. e. Amazon obtains its competitive advantage through inventory management

The company was founded as, and still is, a "virtual retailer" with no inventory

Which of the following statements about quantity discounts is false? a. The cost-minimizing solution may or may not be where annual holding costs equal annual ordering costs. b. In inventory management, item cost becomes relevant to inventory decisions only when a quantity discount is available. c. If carrying costs are expressed as a percentage of value, EOQ is larger at each lower price in the discount schedule. d. The larger annual demand, the less attractive a discount schedule will be. e. The smaller the ordering cost, the less attractive a discount schedule will be.

The larger annual demand, the less attractive a discount schedule will be.

What term is used to describe the outsourcing of logistics? a. E-Logistics b. Shipper Managed Inventory (SMI) c. Hollow Logistics d. Sub-Logistics e. Third-Party Logistics

Third-Party Logistics

Vertical integration appears particularly advantageous when the organization has a. a very specialized product b. a large market share c. a very common, undifferentiated product d. little experience operating an acquired vendor e. purchases that are a relatively small percent of sales

a large market share

The fixed-period inventory model requires more safety stock than the fixed-quantity models 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 stockout can occur during the review period as well as during the lead time

If demand is not uniform and constant, then stockout risks can be controlled by a. increasing the EOQ b. placing an extra order c. raising the selling price to reduce demand d. adding safety stock e. reducing the reorder point

adding safety stock

Which one of the following distribution systems offers quickness and reliability when emergency supplies are needed overseas? a. trucking b. railroads c. airfreight d. waterways e. pipelines

airfreight

The "bullwhip" effect a. occurs as orders are relayed from retailers to wholesalers b. results in increasing fluctuations at each step of the sequence c. increases the costs associated with inventory in the supply chain d. occurs because of distortions in information in the supply chain e. all of the above

all of the above

Which of the following devices represents an opportunity for technology to improve security of container shipments? a. devices that identify truck and container location b. devices that sense motion c. devices that measure radiation or temperature d. devices that can communicate the breaking of a container lock or seal e. all of the above

all of the above

Which of the following statements about the basic EOQ model is true? a. If the ordering cost were to double, the EOQ would rise. b. If annual demand were to double, the EOQ would increase. c. If the carrying cost were to increase, the EOQ would fall. d. If annual demand were to double, the number of orders per year would increase. e. All of the above statements are true.

alll of the above statements are true.

Among the advantages of cycle counting is that it a. makes the annual physical inventory more acceptable to management b. does not require the detailed records necessary when annual physical inventory is used c. does not require highly trained people d. allows more rapid identification of errors and consequent remedial action than is possible with annual physical inventory e. does not need to be performed for less expensive items

allows more rapid identification of errors and consequent remedial action than is possible with annual physical inventory

A fried chicken fast-food chain that acquired feed mills and poultry farms has performed a. horizontal integration b. forward integration c. backward integration d. current transformation e. job expansion

backward integration

f the standard deviation of demand is six per week, demand is 50 per week, and the desired service level is 95%, approximately what is the statistical safety stock? a. 8 units b. 10 units c. 16 units d. 64 units e. cannot be determined without lead time data

cannot be determined without lead time data

The three major variations of online catalogs are a. catalogs by vendors, catalogs by intermediaries, and exchanges provided by buyers b. EDI, ERP, and ASN c. cost-based, market-based, and competitive bidding d. drop shipping, channel assembly, and postponement e. all auction-based

catalogs by vendors, catalogs by intermediaries, and exchanges provided by buyers

Which of the following is an opportunity for effective management in the supply chain? a. random "pull" data b. multistage control of replenishment c. the bullwhip effect d. customer managed inventory e. channel assembly

channel assembly

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 the variability of demand during lead time e. protect the firm from a sudden decrease in demand

control the likelihood of a stockout due to the variability of demand during lead time

What type of negotiating strategy requires the supplier to open its books to the purchasers? a. cost-based price model b. market-based price model c. competitive bidding d. price-based model e. none of the above

cost-based price model

The three classic types of negotiation strategies are a. vendor evaluation, vendor development, and vendor selection b. Theory X, Theory Y, and Theory Z c. many suppliers, few suppliers, and keiretsu d. cost-based price model, market-based price model, and competitive bidding e. None of the above is correct.

cost-based price model, market-based price model, and competitive bidding

ROP EOQ

daily demand x lead time

A carpet manufacturer has delivered carpet directly to the end consumer rather than to the carpet dealer. The carpet manufacturer is practicing a. postponement b. cross-docking c. channel assembly d. drop shipping e. float reduction

drop shipping

A furniture maker has delivered a dining set directly to the end consumer rather than to the furniture store. The furniture maker is practicing a. postponement b. drop shipping c. channel assembly d. passing the buck e. float reduction

drop shipping

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 not setup costs. e. All of the above are true

effective control of all goods leaving the facility is one applicable technique.

A rice mill in south Louisiana purchases the trucking firm that transports packaged rice to distributors. This is an example of a. horizontal integration b. forward integration c. backward integration d. current transformation e. keiretsu

forward integration

The EOQ model with quantity discounts attempts to determine a. what is the lowest amount of inventory necessary to satisfy a certain service level b. what is the lowest purchasing price c. whether to use fixed-quantity or fixed-period order policy d. how many units should be ordered e. what is the shortest lead time

how many units should be ordered

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 increase, the EOQ 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.

if annual demand were to double, the EOQ would also double

In the make-or-buy decision, one of the reasons for buying is a. to assure adequate supply b. to obtain desired quality c. to remove supplier collusion d. inadequate capacity e. to maintain organizational talents

inadequate capacity

In the basic EOQ model, if the cost of placing an order doubles, and all other values remain constant, the EOQ will a. increase by about 41% b. increase by 100% c. increase by 200% d. increase, but more data is needed to say by how much e. either increase or decrease

increase by about 41%

A product whose EOQ is 400 experiences a 50% increase in demand. The new EOQ is a. unchanged b. increased by less than 50% c. increased by 50% d. increased by more than 50% e. cannot be determined

increased by less than 50%

E-procurement a. works best in long-term contract situations, and is not suited for auctions b. is the same thing as Internet purchasing c. represents only the auction and bidding components of Internet purchasing d. is illegal in all states except Nevada and New Jersey e. All of the above are true of e-procurement

is the same thing as Internet purchasing

All of the following statements about ABC analysis are true except a. inventory may be categorized by measures other than dollar volume b. it categorizes on-hand inventory into three groups based on annual dollar volume c. it is an application of the Pareto principle d. it states that all items require the same degree of control e. it states that there are the critical few and the trivial many inventory items

it states that all items require the same degree of control

Japanese manufacturers often take a middle ground between purchasing from a few suppliers and vertical integration. This approach is a. kanban b. keiretsu c. samurai d. poka-yoke e. kaizen

keiretsu

The Japanese concept of a company coalition of suppliers is a. poka-yoke b. kaizen c. keiretsu d. dim sum e. illegal

keiretsu

Which one of the following performance measures is not true of a world class firm? a. short time placing an order b. high percentage of accepted material c. large lead time d. high percentage of on-time deliveries e. low number of shortages per year

large lead time

All of the following are "opportunities" for supply chain management except a. postponement b. drop shipment c. blanket orders d. channel assembly e. line balancing

line balancing

Which of the following is not an opportunity for effective management in the supply chain? a. accurate "pull" data b. vendor managed inventory c. postponement d. local optimization e. channel assembly

local optimization

Which of the following supply chain strategies creates value by allowing suppliers to have economies of scale? a. suppliers becoming part of a company coalition b. vertical integration c. long-term partnering with a few suppliers d. negotiating with many suppliers e. developing virtual companies

long-term partnering with a few suppliers

In the make-or-buy decision, which of the following is a reason for making an item? a. management can focus on its primary business b. lower production cost c. inadequate capacity d. reduce inventory costs e. None of the above is a reason for making an item

lower production cost

Which of the following is not a concern of the supply chain? a. warehousing and inventory levels b. credit and cash transfers c. suppliers d. distributors and banks e. maintenance scheduling

maintenance scheduling

The purchasing approach that holds the suppliers responsible for maintaining the necessary technology, expertise, and forecasting ability plus cost, quality, and delivery competencies is a. few suppliers b. many suppliers c. Keiretsu d. vertical integration e. virtual companies

many suppliers

Drop shipment a. is equivalent to cross-docking b. is the opposite of a blanket order c. means the supplier will ship directly to the end consumer, rather than to the seller d. is the same thing as keiretsu e. is a good reason to find a new firm to ship your products

means the supplier will ship directly to the end consumer, rather than to the seller

When quantity discounts are allowed, the cost-minimizing order quantity a. is always an EOQ quantity b. minimizes the sum of holding and ordering costs c. minimizes the unit purchase price d. may be a quantity below that at which one qualifies for that price e. minimizes the sum of holding, ordering, and product costs

minimizes the sum of holding, ordering, and product costs

Demand for dishwasher water pumps is 8 per day. The standard deviation of demand is 3 per day, and the order lead time is four days. The service level is 95%. What should the reorder point be? a. about 18 b. about 24 c. about 32 d. about 38 e. more than 40

more than 40

Visibility throughout the supply chain is a requirement among supply chain members for a. mutual agreement on goals b. mutual trust c. compatible organizational cultures d. local optimization e. the bullwhip effect

mutual trust

A product whose EOQ is 40 experiences a decrease in ordering cost from $90 per order to $10. The revised EOQ is a. three times as large b. one-third as large c. nine times as large d. one-ninth as large e. cannot be determined

one-third as large

Local optimization is a supply chain complication best described as a. optimizing one's local area without full knowledge of organizational needs b. obtaining very high production efficiency in a decentralized supply chain c. the prerequisite of global optimization d. the result of supply chains built on suppliers with compatible corporate cultures e. the opposite of the bullwhip effect

optimizing one's local area without full knowledge of organizational needs

The transfer of some of what are traditional internal activities and resources of a firm to outside vendors is a. a standard use of the make or buy decision b. not allowed by the ethics code of the Supply Management Institute c. offshoring d. outsourcing e. keiretsu

outsourcing

Which category of inventory holding costs is much higher than average for rapid-change industries such as PCs and cell phones? a. housing costs b. material handling costs c. labor cost d. parts cost e. pilferage, scrap, and obsolescence

pilferage, scrap, and obsolescence

Which distribution system is the fastest growing mode of shipping? a. railroads b. trucks c. airfreight d. waterways e. pipelines

pipelines

Hewlett-Packard withholds customization of its laser printers as long as possible. This is an example of a. vendor managed inventory b. standardization c. backward integration d. postponement e. timely customization

postponement

Keeping a product generic as long as possible before customizing is known as a. postponement b. keiretsu c. channel assembly d. forward integration e. backward integration a

postponement

Cycle counting a. is a process by which inventory records are verified once a year b. provides a measure of inventory accuracy 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

provides a measure of inventory accuracy

The Institute for Supply Management a. establishes laws and regulations for supply management b. is an agency of the United Nations charged with promoting ethical conduct globally c. publishes the principles and standards for ethical supply management conduct d. prohibits backward integration into developing economies e. All of the above are true

publishes the principles and standards for ethical supply management conduct

By which distribution system is 90 percent of the nation's coal shipped? a. railroads b. trucks c. waterways d. pipelines e. none of the above

railroads

Which of the following is an advantage of the postponement technique? a. reduction in automation b. early customization of the product c. better quality of the product d. reduction in training costs e. reduction in inventory investment

reduction in inventory investment

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. All of these are main types of inventory

safety stock inventory

The proper quantity of safety stock is typically determined by a. minimizing an expected stockout cost b. carrying sufficient safety stock so as to eliminate all stockouts c. meeting 95% of all demands d. setting the level of safety stock so that a given stockout risk is not exceeded e. minimizing total costs

setting the level of safety stock so that a given stockout risk is not exceeded

Which one of the following is not a supply chain strategy? a. negotiation with many suppliers b. vertical integration c. keiretsu d. short-term relationships with few suppliers e. virtual companies

short-term relationships with few suppliers

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

since there is no count of inventory during the review period, a stockout is possible

Which of the following is not a condition that favors the success of vertical integration? a. availability of capital b. availability of managerial talent c. required demand d. small market share e. All of the above favor the success of vertical integration.

small market share

A disadvantage of the "few suppliers" strategy is a. the risk of not being ready for technological change b. the lack of cost savings for customers and suppliers c. possible violations of the Sherman Antitrust Act d. the high cost of changing partners e. All of the above are disadvantages of the "few suppliers" strategy

the high cost of changing partners

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 which 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 more of them e. an item is critical if its unit price is high

there are usually a few critical items, and many items which are less critical

An advantage of the fixed-period inventory system is that a. the supplier will be more cooperative 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

there is no physical count of inventory items when an item is withdrawn

Which of the following is not an advantage of a virtual company? a. speed b. total control over every aspect of the organization c. specialized management expertise d. low capital investment e. flexibility

total control over every aspect of the organization

The three stages of vendor selection, in order, are a. vendor evaluation, vendor development, and negotiations b. vendor development, vendor evaluation, and vendor acquisition c. introduction, growth, and maturity d. vendor evaluation, negotiations, and vendor development e. EDI, ERP, and ASN

vendor evaluation, vendor development, and negotiations

which of the following is not an advantage of the "few suppliers" concept? a. suppliers' willingness to participate in JIT systems b. trust c. vulnerability of trade secrets d. creation of value by allowing suppliers to have economies of scale e. suppliers' willingness to provide technological expertise

vulnerability of trade secrets

time between orders EOQ

working days / annual orders

One dollar saved in purchasing is a. equivalent to a dollar earned in sales revenue b. worth even more than a dollar earned in sales revenue c. worth slightly more than a dollar earned because of taxes d. worth from 35% in the technical instrument industry to 70% in the food products industry e. only worthwhile if you are in the 50% tax bracket and still have a low profit margin

worth even more than a dollar earned in sales revenue