Micromotion study breaks down manual work into how many fundamental hand motion categories_______________?
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Answer: C. 16
Explanation
Micromotion study breaks down manual work into a standardized set of fundamental hand motions known universally as therbligs. Pioneered by industrial engineers, this detailed motion breakdown identifies exactly sixteen distinct elemental movements required for tasks. Analyzing these specific motion categories allows industrial engineers to eliminate redundant movements and optimize worker efficiency. Frank and Lillian Gilbreth developed micromotion study by filming manual operations and analyzing film frames to study worker movements. The term therblig is an anagram of the surname Gilbreth, highlighting their foundational contributions to industrial motion study. Fundamental motion categories include reach, grasp, transport, position, and release, which encompass all possible manual work activities.
Option 8 represents an incomplete subset of motions that fails to encompass the full complexity of industrial manual tasks. Option 12 is an arbitrary number that does not match the standardized sixteen therbligs established by classical motion study principles. Option 24 exceeds the recognized classification count of fundamental hand motions defined in standard industrial engineering textbooks.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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