MSC Exam 2
Which of the following is least likely to be included in order costs?
temporary storage of delivered goods
Center of Gravity Method
Add up all the x coordinates and add up all the y coordinates and divide by number of destinations
Which of the following are the key aspects of process selection
Capital intensity and process flexibility
ISO 9000 currently stresses ___ of a certified organization:
Continual Improvement
In which type of processing system would gasoline be produced from crude oil
Continuous
Which of the following process types have the highest volume?
Continuous
Which of the following process types have the lowest product variety?
Continuous
Which of the following most closely describes net requirements for the current period?
Gross requirements for current period- projected on hand inventory for current period
Which of the following process types have the highest product variety?
Job Shop
What are the 4 difference process types
Job Shop, Batch, Repetitive, Continuous, Project
The process of assigning tasks to workstations in such a way that the workstations have approximately equal time requirements is called
Line balancing
In the basic EOQ model, if annual demand doubles, the effect on the EOQ is:
it increases by about 40 percent
Which of the following is absolutely necessary for successful implementation and operation of MRP?
(I) Accurate inventory records (II) Master schedules (III) Accurate holding and backordering costs (not) (IV) Accurate bills of materials
C items
(least important) 50 to 60 percent of the number of items in inventory but only about 10 to 15 percent of the annual dollar value
1- A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product are in control with regard to a particular quality variable. Accordingly, he sampled four units of output from each machine with the following results. Machine Measurements 1 17 15 15 17 2 16 25 18 25 3 23 24 23 22 What does this sample mean for #1?
-16
In an A-B-C system, the typical percentage of the number of items in inventory that is classified as A items is about:
10
A items:
10 to 20 percent of the number of items in inventory and about 60 to 70 percent of the annual dollar value
If a line is balanced with 85 percent efficiency, the "balance delay" will be:
15%
1- The chair of the operations management department at Quality University wants to construct a p-chart for determining whether the four-faculty teaching the basic P/OM course are in control with regard to the number of students who fail the course. Accordingly, he sampled 100 final grades from last year for each instructor, with the following results: Instructor Number of Failures Prof. A 13 Prof. B 0 Prof. C 11 Prof. D 16
16
A production line is to be designed for a job with three tasks. The task times are .5 minutes, 1.2 minutes, and .5 minutes. The maximum cycle time in minutes is:
2.2
What is the estimate of the mean of the sampling distribution for the sample mean?
20
In the basic EOQ model, if annual demand is 50, carrying costs is $2, and ordering costs is $15, EOQ is approximate:
28
Ann Chovies, owner of the Perfect Pasta Pizza Parlor, uses 20 pounds of pepperoni each day in preparing pizzas. Order costs for pepperoni are $10.00 per order and carrying costs are 4 cents per pound per day. Lead time for each order is three days, and the peperoni itself costs $3.00 per pound. If she were to order 80 pounds of peperoni at a time, what would be the length of an order cycle.
4 days
The materials manager for billiard ball maker must periodically place orders for resin, one of the raw materials used in producing billiard balls. She knows that manufacturing uses resign at a rate of 50 kilograms each day, and that is costs $.04 per day to carry a kilogram of resin in inventory. She also knows that the order cost for resin are $100 per order, and that the lead time for delivery is four days. What is the economic order quantity for resin?
500 kilo
Measuring Effectiveness
A major objective in designing process layouts is to minimize transportation cost, distance, or time
The output of MRP is:
A schedule of planned orders for all parts and end items
Inventory Management
A stock or store of goods
The MRP input listing the assemblies, subassemblies, parts, and raw materials needed to produce one unit of finished product is the:
Bill of Materials
The EOQ model is most relevant for which of the following?
Determining fixed order quantities
The purpose of a control chart is to:
Distinguish between random variation and assignable variation in the process
Efficiency:
Efficiency=100%-Balance Delay
Which is not a cost of quality?
Extended service contract costs
For upper limits of 23.29 and 16.71, which machine(s), if any, appear(s) to have an out-of-control process mean?
Machine 1
The MRP input stating which end items are to be produced, when they are needed, and what quantities are needed is the:
Master Schedule
1- A quality analyst wants to construct a sample mean chart for controlling a packaging process. He knows from past experiences that whenever this process is in control, package weight is normally distributed with a mean of 20 ounces and a standard deviation of two ounces. Each day last week, he randomly selected four packages and weighed each: Day Weight (Ounces) Monday 23 22 23 24 Tuesday 23 21 19 21 Wednesday 20 19 20 21 Thursday 18 19 20 19 Friday 18 20 22 20 If he uses upper and lower limits, of 22 and 18 ounces, on what day(s), if any does this process appear to be out of control?
Monday
Average demand for a particular item is 1,200 units per year. It costs $100 to place an order for this item, and it costs $24 to hold one unit of this item in inventory for one year. If the fixed-order-interval model is chosen in this instance, how often (on average) will this item be ordered?
Once a month
Assumptions for an EOQ model
Only one product is involved Annual demand requirements are known Demand is even throughout the year Lead time does not vary Each order is received in a single delivery There are no quantity discounts
The quality tool which helps focus on the most important problem areas based on the 80-20 rule is:
Pareto Analysis
Which of the following is not an input in an MRP system?
Planned order schedules
What are the two types of facilities layouts?
Product layout and Process layout
Which of the following is typically the largest of all inventory costs?
Purchase cost
Which of the following is not one of the assumptions of the basic EDQ model?
Quantity discounts are available
Name the types of inventory
Raw materials and purchased parts Work-in- process (WIP) Finished goods inventories or merchandise Tools and Supplies Maintenance and repairs (MRO inventory) Goods-in transit to warehouses or customers (pipeline inventory)
Job shop tend to be __ while continuous processes tend to be _
Small scale and flexible; large scale and inflexible
What defines optimal level of inspection?
The amount of inspection is optimal when the sum of the costs of inspection and passing defectives is minimized
Which of the following is the definition for cycle time?
The maximum time allowed at each workstation to complete its set of tasks on a unit
Line Balancing
The process of assigning tasks to workstations in such a way that the workstations have approximately equal time requirements
Total Cost
Total Cost= Fixed Cost + variable cost per unit x quantity or volume of output (lower cost is the answer)
The introduction of quantity discounts will cause the optimum order quantity to be:
Unchanged or greater
A time ordered plot of sample statistics is called a ___ chart
control
When carrying costs are stated as a percentage of unit price, the minimum points on the total cost curves:
do not line up
Minimum Cycle Time Definition
equal to the longest task time
A stock or store of goods is called a(n):
inventory
B items
moderately important
Cycle Time formula
operating time per day / desired output rate
1- A visual depiction of the subassemblies and components that are needed to produce and/or assemble a product is called a(n):
product structure tree