Industrial Ergonomics

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1.

Sagittal plane

Coronal plane

Transverse plane

Diagonal plane

Question 2. As an anthropometric term, __________ is a straight line, point-to-point horizontal measurement running fore-aft the body.

breadth

depth

distance

reach

Question 3. In order to initiate contraction, the __________ heads protrude from the thick filaments along their length and form a cross bridge with the actin.

myosin

actin

ATP

Z disc

Question 4. The color of the slow twitch fibers are __________ due to an abundance of capillaries that provide oxygenated blood for long-duration activities.

red

white

grey

yellow

Question 5. Which of the following terminologies is the reference for the height of a seat?

Sitting thigh height (clearance)

Sitting knee height

Sitting hip height

Sitting popliteal height

Question 6. In which of the following principles is the maximum value of design features (i.e., door height) or the minimum value of design features (i.e., reach distance) used?

Design for adjustable ranges

Design for accuracy

Design for average users

Design for extremes

Question 7. For a measurement of static strength, the strength datum is the mean score recorded during the first __________ seconds of steady exertion.

2

3

5

7

Question 8. An example of an _________ contraction would be carrying an object in front of the body.

eccentric

isometric

isotonic

isokinetic

Question 9. To design tasks such that the smallest person can reach all items, what percentile is commonly used to find the reach dimensions?

5th percentile

50th percentile

95th percentile

99th percentile

Question 10. In __________ testing, subjects perform lifting tasks to determine maximum safe levels of exertion based on their personal perspective of acceptable risk. This method is dependent upon cooperation from the subject, expertise from the evaluator, and good judgment on the part of both the subject and evaluator to ensure the safety of the test and the accuracy of the data.

isometric strength

dynamic strength

psychophysical

biomechanical

Question 11. Discuss the procedure for design using anthropometric data. Include Confidence Intervals (CIs). Select any one anthropometric measurement for males or females in Table 5.3 and find 90% CI for the mean measurement of the population using the equation (5.2).

Question 12. Discuss the Case Study by Andres et al. shown at the end of Chapter 4 in the textbook ( [GS1] Do you agree with the conclusions and recommendations for the case study? Why or why not? What have you learned from the Case Study.