Which sign should be noted to identify a problem caused by wrong work height?
Answer and explanation
Correct answer: The worker repeatedly bends or raises the shoulders
If a work surface is too low, a worker may need to bend repeatedly; if it is too high, the worker may need to raise the shoulders. These awkward postures increase strain on the neck, shoulders, and back, so option A is a clear sign of incorrect work height. Options B, C, and D indicate an appropriate work height and better ergonomics. Exam tip: In work-height questions, repeated bending, shoulder elevation, and uncomfortable reaching are warning signs.
Frequently asked questions
What is the correct answer to this question?
The worker repeatedly bends or raises the shoulders
Why is this the correct answer?
If a work surface is too low, a worker may need to bend repeatedly; if it is too high, the worker may need to raise the shoulders. These awkward postures increase strain on the neck, shoulders, and back, so option A is a clear sign of incorrect work height. Options B, C, and D indicate an appropriate work height and better ergonomics. Exam tip: In work-height questions, repeated bending, shoulder elevation, and uncomfortable reaching are warning signs.
Which subject and chapter does this question cover?
This is a Class 11 Home Science question. Chapter: Work, Livelihood and Career. Topic: Ergonomics: definition, need and benefits.
