38 Questions
What is the distance moved by the arm in Example 1?
16 inches
What type of motion is involved in Example 1?
Basic motion
What is the time value for an arm movement with a distance of 16 inches and basic motion?
0.0052 min
What is the body member involved in Example 1?
Arm
What is the distance moved by the arm in Example 2?
25 inches
What type of motion is involved in Example 2?
Definite stop motion
What is the time value for an arm movement with a distance of 25 inches and one manual control?
0.0076 min
What does the Work factor (1,2,3,4) refer to?
The number of manual control/work factors that have been taken into account
What is the main purpose of distinguishing between setup and production elements in a standard data system?
To account for the differences in activities required for batch production
What is the formula to compute the batch time of a production?
Tb = Tsu + Q Tc
What is the characteristic of a constant element in a standard data system?
Has the same time value in all time studies and tasks
What is an example of a variable element in a standard data system?
Loading a work piece into a machine
What is the difference between setup and production elements?
Setup elements are performed once per batch, while production elements are performed once per work unit
What is the term for the time spent on activities required to change over from one batch to the next?
Setup time
What is the term for the total time spent on a production task?
Batch time
What is an example of a worker-paced element in a standard data system?
Loading a work piece into a machine
What is the primary purpose of a standard data system (SDS) in work measurement?
To define time standards for tasks with similar work elements
What is an advantage of using a standard data system (SDS) over direct time study?
It does not need observation of actual task to record data and establish standards
When is a standard data system (SDS) most suitable to use?
When similar tasks are involved
How is the database in a standard data system (SDS) organized?
By work element
What is the benefit of using a standard data system (SDS) in terms of cost?
It reduces the cost of establishing time standards
Why is classification of work elements important in a standard data system (SDS)?
Because the normal time is a predicted value rather than an observed value
What is another advantage of using a standard data system (SDS)?
It can be used as a check for time study
What is the characteristic of time standards established using a standard data system (SDS)?
They are more accurate than other time standard techniques
What is the primary purpose of the Simplified Work Factor System?
To plan projections before actual development starts
What is the time unit used in the Job Factor Table?
0.0001 minutes
What is the ideal workplace for the Abbreviated Work Factor System?
Small workplaces
What is the accuracy of the Abbreviated System compared to the Detailed System?
+12% of the detailed system
What is the time unit used in the Abbreviated Work Factor System?
0.005 minutes
What is the primary purpose of the Ready Work Factor System?
To assess manual labor in manufacturing and other industries
What is the characteristic of higher-level systems like the Simplified Work Factor System?
Simpler and faster to use
Who is the ideal user of the Ready Work Factor System?
People unfamiliar with the details of time test techniques
What is the purpose of copying and conveying materials in the learning packets?
For non-commercial teaching purposes only
What is the Intellectual Property Code of the Philippines also known as?
Republic Act No. 8293
What is the consequence of copying and/or distributing the content without permission?
The copyright owners may take legal action against such infringement
What is the extent of copying and conveying materials justified in the learning packets?
To the extent justified for the purpose
What is the purpose of the COPYRIGHT NOTICE?
To inform users of the copyright restrictions
What is the institution that conveyed the materials in the learning packets?
Pamantasan ng Cabuyao
Study Notes
Standard Data System (SDS)
- A database of normal time values, organized by work elements, used to define time standards for tasks with similar work elements.
- Advantages of SDS:
- More efficient to use when numerous tasks are similar
- More productive to use with large data sets to establish standards
- No need for observation of actual tasks to record data and establish standards
- Time standards can be established at a lower cost
- Time standards are more accurate and consistent
When to Use SDS
- When similar tasks are involved
- In batch productions
- With large number of data sets
Work Elements in SDS
- The database is organized by work elements
- Normal time is provided for each work element
- Important to classify work elements into different categories:
- Setup vs. production elements
- Constant vs. variable elements
- Worker-paced vs. machine elements
- Regular vs. irregular elements
- Internal vs. external elements
Setup vs. Production Elements
- Setup elements: associated with activities required to change over from one batch to the next
- Production elements: associated with the processing of work units within a given batch
- Batch time: Tb = Tsu + Q Tc
Constant vs. Variable Elements
- Constant elements: same time value in all time studies and tasks
- Variable elements: same basic motion elements but normal times vary due to differences in work units
Worker-Paced vs. Machine Elements
- Worker-paced elements: time values depend on the worker's pace
- Machine elements: time values depend on the machine's cycle time
Motion-Time Tables
- Tables used to determine time values for different body members and motions
- Examples: WF-Motion-Time Table (Arm), WF-Motion-Time Table (Leg), etc.
Simplified Work Factor System
- A higher-level system used for medium quantities
- Uses a systematic working factor process
- Effective in planning projections before actual development starts
Abbreviated Work Factor System
- A higher-level approach used for small workplaces
- Based on a comprehensive system of work factors
- Ideal for quick measurement process
Ready Work Factor System
- A higher-level job factor used for manual labor
- Commonly used in manufacturing and other industries
- Created to meet the need for a simple measurement method
A database of normal time values, organized by work elements, used to define time standards for tasks with similar work elements. Advantages include efficiency and productivity when dealing with numerous tasks and large data sets.
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