Lamar University-INEN3380Exam3StudyGuideQuiz5

1)The design for the is cheapest, but will accommodate, perhaps, only the middle 50 to 60% of the population.

2. A            maintains the component it in a known, fixed, proper position and allows the use of both hands in assembly.

3. Control movement without system response is known as        .

4. The optimum line of sight is roughly     degrees below the horizontal.

5. The design for        will accommodate all but the largest or smallest 10% of the    population.

6. A trigger finger is a form of tendinitis resulting from a workstation in which the distal phalanx of the index finger must be bent and flexed against resistance before more proximal phalanges are flexed.

True False

7. Your team is designing a seat for an airline, you have been instructed that the seat must accommodate the 95th percentile for men and women in regards to the width of the seat.

12.3"

12.1"

16"

17.2" A.C.

Homework

Chapter 5 Design of The Workplace, Equipment And Tools Questions

1. What seat width would accommodate 90% of adults?
2. Compare and contrast the three different design strategies.
3. Explain how a proper worksurface height would be determined.
4. What are the most critical features in a good ergonomic chair? Which should be adjustable?
5. What is the principle behind the design of a saddle seat?
6. What is lordosis and how does it relate to a lumbar pad?
7. What is the principle behind anti-fatigue mats?
8. What is the principle behind the proper layout of bins, parts, and tools on a work surface?
9. What is a fixture so important in workplace? List as many reasons as possible.
10. What does Warrick’s principle refer to in designing controls and displays?

11. What is the optimum line of sight?
12. List three principles for arranging components on a panel.
13. What is the range effect?
14. List the three principles for effective control-display compatibility.
15. What is operational coding?
16. What is the main disadvantage of tactile controls?
17. What is control movement without system response known as?
18. If the CR ratio is increased from 1.0 to 4.0, what happens to travel time, adjust time and total time?
19. What are the three most important task factors leading to cumulative trauma disorders?
20. What is the most important factor leading to white finger?
21. What is trigger finger?
22. Describe the progression of the disease state for carpal tunnel syndrome.
23. Design an ergonomic handle indicating all of the principles used in the design.
24. What are the key concerns in the design of a power tool?

Chpt 6 Quiz

1. It has been proven that color will have a psychological effect on people. For example, yellow is the accepted color of butter, therefore margarine must also be made yellow.

True

 False

2. Workers can be protected from vibration through the introduction of supports to cushion the body and dampen the vibrations, alterations of body posture to lessen the impact of the vibrations, and reduction of the forces causing the vibrations.

True

 False

3. What is the approximate decimal value of a grinder being used to grind high-carbon steel. (In decibels)

4. Sodium vapor lamps have fairly poor color rendering, a shift in frequencies as compared to a standard source such as daylight, and would probably not be suitable for certain inspection operations were color discrimination is necessary.

True

 False

5.        noise is made up of frequencies covering a significant part of the sound spectrum, it can be both continuous and intermittent.

6. The quality of light and task performance is affected by the amount of gamma rays, the contrast and the visual light.

True

False

7.         noise represents distracting sound that will have an impact workers and efficiency, but not on the workers hearing loss.

8. According to OSHA law, how many continuous per day of 100 dBA sound level would be permitted.

one hour for every eight hours worked

two hours for every eight hours worked three"""

four"""

9. Contrast and visibility are inversely related; as the contrast increases, visibility decreases.

 True    False

10. The            is the range of temperatures and relative humidity s in which a worker, performing like work, would be comfortable.

11. The            is the ambient dry bulb temperature experienced by the worker.

12. The color        has the highest visibility.

Chapter 7 Quiz Study

1.             occurs when a direct comparison can be made, while an absolute judgment uses information stored in working memory.

2.             is defined as saying there is saying there is no signal when the signal is present.

3. The use of colors and flashing lights will help increase attention for visual displays.

True

False

4.            is the stage of the human information processing model that receives incoming stimuli.

5.         is defined as saying there is a signal when no signal is present.

6.          is defined as saying there is no signal when no signal is present.

7. In terms of the human operator, the bandwidth for motor-processing task could be as low as 6 to 7 bits per second are as high as        bits per second for speech communication.