Final Flashcards
SKU
Stock Keeping Unit
OH
Factory Overhead
PERT
Process Evaluation Review Technique
PPE
Personal Protection Equipment
P&L
Profit and Loss
Explain briefly the concept of Value Added
It is what the customer is willing to pay in/for your product.
How much has the productivity increased in the US in the last 100 years?
4% anually
Mention at least two indicators of World Class Manufacturing
Lead time, inventory turnover, quality cost
What is the external time of a task in SMED analysis?
It is the things the operator does that do not have relationship or include the machine.
Definition of Methods Engineering
It is the design, creation and selection of the best methods, tools, equipment, skills, etc. to make a product with the standards and caracteristics necessaries.
Mention the two primary objectives of standards and job design
Increase productivity and reduce unit cost
What is a Standard
Is a guide that tells you how many or how fast you should do something.
Mention the 3 ways explained to increase productivity
- do more with less
- do more with the same
- do the same with less
He is the creator of the 12 principles of efficiency
Harrington Emmerson
What is the most important contribution from Gilbreth´s to method engineering?
Study of movements, therbligs.
Mention 3 charts used as Exploratory for methods and measurement of work
- Gantt chart
- Pareto Diagram
- PERT Chart
- Fishbone Diagram
How else is known the Fishbone diagram?
Cause - effect
Mention the most important improvement of a PERT chart versus a Gantt chart
It allows you to find the optimal / critical route of activities.
Name the Exploratory Tool that consists of a questionnaire aimed at identifying in a simple way the main areas of improvement of an operator and his work station.
work analysis
Which are the 5 main symbols used in a Process Flow Diagram and what does each one represent?
Operation (O - círculo) Transport (→ - flecha hacia la derecha) Storage (▼- triángulo hacia abajo) Delay (D - medio cuadrado con un lado circular) Inspection ( ▄ -rectángulo)
What is the 5s methodology?
It is a methodology wich main objective is to increase productivity using order, cleaninless, discipline, and compromise to improve the work space.
Mention the 5s in Japanese
Seiri Seiton Seiso Seiketsu Shitsuke
What is the purpose of red cards in 5s methodology?
To mark the areas of oportunity in the sort “s”.
Complete the 5s quote: “———————- and everything in its place”.
A place for every thing
Mention to which of the 5s refers the quote in the previos question of the quote “A place for every thing and everything in its place”.
Set in order
BOM
Bill of Material
OSHA
Occupational Safety and Health Administration
NWB
Natural Wet Bulb
TWA
Total/time Weighted Average
Productivity is equal to:
Production divided by resources used
Something better than improving an operation is…
eliminating it
Name at least to ways to simplify the Design of a Product
Reduce the number of parts
Reduce the operations or distances
Better material
Give an example of a product that applie Design for environment and explain why it is DFE
An straw made of carton, or biogradable plastic bags that consider their impact on the envornment and try to diminishes the damage.
The arrows that indicate the side by which a box should be opened “open this side” are an example of Poka Yoke? Why?
No. Because the person can ignore the sign and open the box anothe way, without causing any damage.
The suggestion of the use of SMED to which of the 10 steps of the Job analysis correspond?
Preparation and tools (6)
Name 3 of the 4 types of plant distribution (Layouts)
by product, by process, by job, manufacturing cells
Name 3 Not Effective Therbligs
Search, to hold, select, avoidable delay, unavoidable delay, position
Name 3 Effective Therbligs
Reach, release, move, use, assambley, preposition, hold
Locate next 8 concepts and units in the right place in the graphic below: illuminance, lumens, cd/square meters, luminance, luminous flux, luminous intensity, lux, lumens.
Luminous flux (lumens) - sale del sol
Luminous intensity (lumens) - sale del sol a la tierra
Luminance (cd/square meter) - lo que esta en la tierra
Illuminance (lux) - lo que esta en el ojo
Name at least 2 of the 3 recommended ways to control Noise level
isolate
Limit the time spent in noisy areas
Change process
Use materials that absorbe noise
What is Significant Noise
Its the “bad noise” that exist in the workers environment that affects their productivity and increases the fatigue.
What is a qualified employee in a time study?
It is an average employ that is familiar with all the task that need to be donde and has good motivation, uses his time effectibly.
Name at least 2 elements requiered for the selection of the operator in a time study
That he is familiar with the technique, average (not too fast, not too slow), qualified
What are the 4 types of elements that are identified in a time study?
internal
external
foreign
occasional
What is the main objective that you look for when dividing an operation into elements?
simplifying for the statistical analysis.
What are the 2 elements requiered to achieve the standard time in a study?
Normal time and allowances
What is the minimum time that an element must last to be subject of a study of times?
0.03 min
In a time study the element with the highest standard deviation was “coupling feeder”. The highest reading was 0.17 min and the lower reading 0.12; the average of the 16 valid readings after eliminating foreign elements was 0.147. How many readings are requiered for the study to have a 95% reliability? (use the table)
R=0.17-0.12=0.05 (rango, mayor menos menor)
x=0.147 (promedio)
R/X=0.34
Interpolar
15+((0.34-0.3)/(0.4-0.3))x(27-15)=19.8=20
In a time study the element with the highest standard deviation was “coupling feeder”. The highest reading was 0.17 min and the lower reading 0.12; the average of the 16 valid readings after eliminating foreign elements was 0.147. How many readings are requiered for the study to have a 90% reliability? (use the table)
R=0.17-0.12=0.05 (rango, mayor menos menor)
x=0.147 (promedio)
R/X=0.34
Interpolar
15+((0.34-0.3)/(0.4-0.3))x(27-15)=19.8=20 para 95%
para 90%
20/4=5
What are the 4 factors that the westinghouse method qualifies?
Skill
Effort
Conditions
Consistency
Convert 48 seconds to hundredths of a minute
(48/60)=0.8
What is the standard percentage of personal needs?
5%
A mistake or rework during the process in a time study is an example of:
Foreign element
Getting up to drink water in a time study is an example of:
External element
Fill a container of washers that is part of the process in a time study is an axample of:
Occasional element
An assembly operation during the process in a time study is an example of:
Internal element
