Motion study investigations involve the detailed examination of________________?
Show answer Hide answer
Answer: A. actions of operator
Explanation
Motion study investigations involve the detailed examination of physical actions performed by an operator. Analysts break down manual tasks into fundamental therbligs to eliminate wasteful body movements. Studying operator actions improves ergonomic comfort and speeds up repetitive assembly operations. Frank and Lillian Gilbreth pioneered motion study techniques using micro-motion film analysis. The primary goal of motion study is to design work methods that reduce fatigue and increase ease. Therbligs represent fundamental hand and body motions categorized during detailed task analysis.
Assembly plants apply motion study principles to design ergonomic workstations and efficient tools. Eliminating awkward reaches and bends protects workers from musculoskeletal injuries over time. Standardized motion sequences ensure consistent product quality across different manufacturing shifts. Restricting motion study only to operator actions ignores that layout and tooling are also analyzed. Focusing exclusively on workplace layout belongs to environmental ergonomics rather than motion study. Saying none of the above is incorrect because examining operator actions is a core study component.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
Related questions
Q1. Layout templates are practical tools used for_________________?
Show answer Hide answer
Answer: A. a planning layout
Layout templates are scaled physical or digital representations of factory equipment. Engineers arrange these templates on floor plan grids to design facility layouts. Therefore, layout templates serve as practical tools...
Q2. Mandatory deductions for the employees' provident fund commence from________________?
Show answer Hide answer
Answer: D. after 240 days of joining the service
Mandatory deductions for employees' provident fund schemes often commence only after completing a qualifying service duration. Statutory provisions in certain jurisdictions stipulate that temporary or probationary worker...
Q3. The fundamental statistical assumption underlying PERT analysis is that__________________?
Show answer Hide answer
Answer: C. a project can be subdivided into a set of predictable, independent activities
The fundamental statistical assumption underlying PERT analysis is that projects subdivide into predictable, independent activities. Assuming task independence allows probability distributions and variance calculations t...
Q4. The primary advantage offered by a line organization structure is its_______________?
Show answer Hide answer
Answer: E. all of the above
A line organization structure features a direct vertical chain of command from top to bottom. This direct hierarchy ensures effective command, control, and defined responsibilities. Because all listed attributes are true...
Q5. What is the fundamental distinction between PERT and CPM_____________?
Show answer Hide answer
Answer: D. guessed times are used in PERT and evaluated times in CPM
PERT traditionally incorporates probabilistic three-time estimates to account for uncertainties inherent in complex research and development tasks. Conversely, CPM typically relies on deterministic, evaluated time values...
Q6. Production routing explicitly dictates the_________________?
Show answer Hide answer
Answer: A. flow of material in the plant
Production routing explicitly dictates the exact path and sequence operations take as materials flow through the plant. Routing documents specify every machine, workstation, and process step required to manufacture a com...