Question:
The term Therbligs are generally relevant with
The term Therbligs are generally relevant with
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To easily remember Therbligs:
- It is simply "Gilbreth" spelled almost backwards!
- Whenever you see "Therbligs," associate it instantly with micro-motion analysis, body gestures, and elementary manual tasks in time study.
Updated On: Jul 9, 2026
- Fatigue allowance in work measurement
- Scheduling processes
- Elementary motions of time study
- Efficiency of the operator
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The Correct Option is C
Solution and Explanation
Concept:
In motion and time study within industrial engineering, a "Therblig" is a classification system consisting of fundamental, elemental micro-motions required to perform a physical operation or manual task. Devised by Frank and Lillian Gilbreth, the word "Therblig" is an anagram of the creators' surname spelled backwards (with the 'th' treated as one unit). By breaking operations down into these elemental steps, engineers can analyze and eliminate wasteful, non-value-added body movements to standardize workflows and maximize efficiency.
Step 1: Understanding the definition and origin of Therbligs.
Frank and Lillian Gilbreth identified 17 (later expanded to 18) fundamental subdivisions of hand and body movements. These atomic elements describe every movement occurring at a workstation. Examples include:
• Search (Sh): The eyes or hands hunting for an object.
• Find (F): A mental reaction that occurs at the end of a search cycle.
• Select (St): Choosing one object from among several options.
• Grasp (G): Closing fingers around an object to gain physical control.
• Hold (H): Retaining an object in a fixed position with a hand.
Step 2: Mapping Therbligs to time and motion study fields.
Because Therbligs represent microscopic elements of work, they are heavily utilized during micromotion studies. Analysts film an operator performing a task and then review it frame-by-frame, categorizing every basic physical action into its respective Therblig element. This microscopic breakdown is a core methodology used exclusively for tracking the elementary motions of time and motion study, making Option (3) the correct choice.
Step 1: Understanding the definition and origin of Therbligs.
Frank and Lillian Gilbreth identified 17 (later expanded to 18) fundamental subdivisions of hand and body movements. These atomic elements describe every movement occurring at a workstation. Examples include:
• Search (Sh): The eyes or hands hunting for an object.
• Find (F): A mental reaction that occurs at the end of a search cycle.
• Select (St): Choosing one object from among several options.
• Grasp (G): Closing fingers around an object to gain physical control.
• Hold (H): Retaining an object in a fixed position with a hand.
Step 2: Mapping Therbligs to time and motion study fields.
Because Therbligs represent microscopic elements of work, they are heavily utilized during micromotion studies. Analysts film an operator performing a task and then review it frame-by-frame, categorizing every basic physical action into its respective Therblig element. This microscopic breakdown is a core methodology used exclusively for tracking the elementary motions of time and motion study, making Option (3) the correct choice.
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