Op Management Unit 2

Which of the following is another term for one simulation run

Replication

Process X and Process Y both supply parts directly to assembly. Process X is a bottleneck, Process Y is not. What is the result of running both processes at full capacity

There will be an accumulation of output from Process Y waiting for output from Process X at Assembly

The fraction of time a workstation or individual is busy over the long run is called

Utilization

The number of units or tasks that are completed per unit time from a process in the

throughput

Processes A, B, C, D are used to produce goods with infinite demand. The steps feed directly into one another A to D, A and D can produce 400 units while B and C produce 300. Which process steps can experience idle time while the overall process still maxs ouputs

Processes A and D

Which of the following equal throughput x flow time

Work in Process

The average time it takes to complete on ecucle of a process is called

flow time

A waiting line is also called

queue

Which of the following is NOT true about simulation models

A simulation model is used to get estimates, an analytical model provides detailed analysis

Which of the following describes the general process for identifying a bottleneck

Identify the work activity that has the smallest throughput

Processes A, B, C, D are used to produce goods with infinite demand. The steps feed directly into one another A to D, A and D can produce 400 units while B and C produce 500. and 300 respectively. Which process steps should be 100 percent utilized while the overall process still maxs outputs

Process C

In one method of calculating utilization, which of these is divided by service rate x number of servers

Demand rate

Analytical queuing models assume a Poisson probability distribution for

Arrivals

Which of the following is the typical queuing system used by banks and airplanes ticket counters

One or more parallel servers fed by a single queue

In one method of calculating utilization, Which of the following is divided by resources available

Resources used

Process X feeds into Process Y, which is then ready for sale process Y is a bottleneck, while Process X is a non-bottleneck What is the result of running both at full capacity

A pile of inventory will build up before Process Y

Which of the following is the work activity that effectively limits the throughput of the entire process

Bottleneck

IN an analytical queueing model, service times measure

rates

Which of the following best defines the Theory of Constraints

A set of principles the focuses on increasing total process throughput by maxing the utiliization of al bottleneck work activities

A hotel has 200 rooms If on a given day there are 150 rooms occupied, which number would present the utilization of hotel rooms.

75%

What is the average time a bouquet stays in a florist shop if it sells 100 bouquets per day and maintains an average inventory of 200 bouquets

2 days

Which of the following is NOT an example of a nonphysical constraint

Associated with the capacity of a resource

A warehouse is capable of processing 600 returns per day, and the average number of returns is 200. Based on the data in the questions, what is being calculated by dividing 600 by 200

Flow time

Which of the following is NOT part of the queuing system

A map of process and functions

Which of the following is an example of a bottleneck management principle

Large order sizes are used a bottleneck workstations

In the context of ABC inventory analysis, Which of the following statements is true of class C items

They can be managed using automated computer systems

IN the context of inventory managements, a single item or asset stored at a particular location is referred to as a(n)

stock-keeping unit

In context of ABC inventory analysis, Which of the following statements is true of Class A items

They require close control by operation managers

The demand for bread in Ahoma city ranges form 100 to 120 tons per day, every day of the year. The demand is easily satisfied on a daily basis. This demand for bread can be categorized as

Static demand

Inventory that results form purchasing or producing in large lots than are needed for immediate consumption or is referred to as

cycle

Base on the content demand assumption in the economic order quantity (EOQ) model, the average cycle inventory is

half of the order quantity

In the context of managing inventories in supply chains, which of the following refers to the time between placement of an order and its receipt

the lead time

In the context of inventory costs, which costs can reflect backorders or service interruptions for external customers

stockouts costs

Which of the following statements is true of the independent demand for a stock-keeping unit (SKU)

It needs to be forecasted

In the context of inventory costs Which of the following costs can reflect lost sales for external customers or costs associated with interruptions to assembly lines for internal customers

stockout costs

The inventory that consists of partailly completed products is various stage of completion that are awaiting further processing is called

work-in-process

An apparel company offers world champion t-shirts to NBA and NFL, the company bought blank stock for $5 and charged $50 per shirt. IF the expected demand is normally distributed with a mean of 150 and a SD of 40how many shirts should be ordered

201`

In the context of fixed-quantity systems, Which of the following is defined as the on-hand quantity (OH) plus any orders placed but which have not arrived minus any backorders (BO)

inventory position

What are the two principal decisions when using a fixed-period invenotry system

The replenishment level and the time interval between reviews

Which of the following statements is true of backorders

They result in additional costs

Which of the following applies to inventory situations in which one order is placed for a good in anticipation of a future selling season where demand is uncertain

the single-period inventory model

The bodega was out of D-cell batteries late one night, so Lisa went to the local big box retailer and bought some there. From the bodega’s perspective this inventory situation is

a lost sale

Which ype of inventory is an additional amount of inventory that is kept over and above the average amount required to meet demand

safety stock

Which of the following statements is true of fixed-period system (FPS)

It orders sufficient stock at the time of review to bring the inventory position up to the replenishment level (M)

The demand for trains between Marshal and Deepbarrow varies throughout the year peaking during summer an drops during the winter. This demand is categorized as

dynamic demand

In the context of inventory costs, which costs are incurred as a result of the work involved in configuring tools equipment and machines within a factory to produce as item

Setup costs

In the context of a fixed-order quantity system, stockouts occur whenever the lead-time demand

exceeds the reorder point

Stable demand is usually called

static demand

The bookstore orders books for $50 each then sells them for $250 each. Any unsold books go back to the publisher who pays $5 each. Demand mean of 200 and SD is 25. They also sell podcasts subscriptions for $25 each and never runs out. What is the bookstores shortage cost for the books

$175

Taylor, the material manager at a retail store has determined that a particular product experienced 5 turns last year, with an annual sales volume of $15 million. What was the average value for this product last year

$3 million

Managing orders, transportation, and distribution to provide goods and services is part of which function of the supply chain operations reference SCOR model

Deliver function

Any entity- real or virtual- the coordinates and shares information between buyers and sellers is a(n)

intermediary

Expresso machines are a popular impulse purchase and after 5 years of taking up space they are often returned to the manufacturer who cleans them up and sells them as

refurbished espresso machines

The SCOR model is a framework for understanding supply chain management. SCOR is an acornym for

Supply Chain Operations Reference

In the context of measuring supply chain performance, the goal of sustainability measures is to

have a carbon neutral supply chain

Which transportation mode is the most flexiable

Truck

Which of the following is a disadvantage of vendor-managed inventory(VMI)

It often results in higher customer inventories than necessary

Which of the following statements about reverse logistics is true

In many firms, the forward supply chain operates independently of reverse logistics activities

Teksupply inc, an automobile parts supplier, held an average automoble parts inventory of $4 million last year, ITS cost of goods sold was $25 million. What was the inventory turnover of the automobile parts last year?

6.25

Which function of a supply chain is responsible for selecting transportation carriers and managing company-owned fleets of vehicles

Logistics

The tire shop sold new tires to customers and offered lifetime flat repair services. They took old, worn tires and shredded them for asphalt, mulch, or made back into tires as an example of

recycling

Which of the following best defines inventory turnover

It is the measurement of how quickly goods are moving through the supply chain

What are the two primary responsibilities of logistics managers

Purchasing transportation services and managing inventories and the movement of materials and goods through the supply chains

Speedex, an automobile company, has an annual sales volume of $3 million, COGS is $2 million, total average on hand inventory of $600,000 and 150 operating days a year, What is the daily revenue earned by the company

$20,000

Which of the following is true of purchasing

It can have a significant impact on total supply chain costs

The county goverment selling online educational services to local businesses is an exmaple of what type of commerce

G2B

Inventory that has been ordered but is in transit is called

pipeline inventory

Which of the following is the dicispline of managing the flow of matierals and transportation to ensure adequate customer service at reasonable cost

Logistics

Fastenal sends trucks form its distribution centers out to retail locations with supplies to replenish their inventory on the way back they haul packages for shipping companies from various drop-off locations along their route. This practice is know as

backhaul

Which of the following is true of order amplification

Order amplification in the supply chain lads to the bullwhip effect

Which of the following actions would be most appropriate for a supply chain manger seeking to mitigate risk of inventory and warehouse stockouts

Add safety stock

Which of the following actions would be most appropriate for a supply chain manager seeking to mitigate the risk of insufficent production capacity

schedule overtime

If an online retail store has COGS at $2 million, has 200 operating days in a year, and has a total average on-hand inventory of $500,000, the COGS per day is

$10,000

Which of the following refers to managing the flow of finished goods, materials, or components that may be unusable or discarded through the supply chain form customers towards either suppliers, distributors, or manufacturers for the purpose of reuse, resale, or disposal

reverse logitistics

Which of the following is the supply chain function responsible for acquiring raw materials, component parts, tools, services and other items from external suppliers

Procurement

The transmission was shot on the school bus 38 so its parts were used on bus 227, this practice is called

cannibalization

One again the starter on logan’s tractor failed so he looked at a new one or one that had been recently traded in. This starter was less expensive that the new one and was marketed as

Remanufactured

When comparing costs to purchases form different suppliers, it is best to consider

total cost of ownership

An initiative to take manufactured goods that might be discarded or otherwise unsavable and repurpose them is

manufactured goods recovery