DEA 3510 EXAMINATION: PRACTICE PRELIMINARY 1
Please circle your answers to each of the following multiple choice questions
1. In a user-machine system what does the term "user interface" refer to?
a. the organization of task activities
b. the design of controls and displays
c. the prioritizing of the users knowledge about the system
d. the organization of what functions will be performed by the user and by the machine
2. Label the four components of the person-technology system shown in the diagram below.
3. What name is given to the sensory short term memory systems for vision and audition?
a. Visual short term sensory memory is called __________________________ memory
b. Auditory short term sensory memory is called __________________________ memory
4. What name is given to the general short term memory storage system in the model of human information processing presented in class?
a. phonetic memory
b. episodic memory
c. visual memory
d. working memory
5. Which of the following is a general principle in the design of public information symbols?
a. outline is preferable to silhouette
b. symmetrical symbols are preferred
c. directional symbols should be reversible
d. symbols in square enclosures are preferred
6. If an immediate hazard will result in severe personal injury or death, which of the following hazard intensity labels should be used?
7. Which of the following is not important as an aid to the recognition of visually displayed information?
a. fixed length scale
b. level of illumination
c. figure/ground contrast
d. letter size
8. In a bilingual safety sign, what should the message panel contain?
a. hazard intensity information
b. instructions written in both languages
c. international 'alert' symbol
d. primary 'alert' message which identifies the nature of the hazard
9. Which of the following is a reason for choosing an analog rather than a digital display?
a. anticipatory information is required
b. rate of change of values is not important
c. displayed values are stable
d. precise values are required to be read with speed and accuracy
10. Which of the following numeric progressions should be used with an analog display?
a. progression in units of 3
b. progression in units of 5
c. progression in units of 7
d. progression in units of 0.15
11. Which of the following is a reason for choosing an auditory rather than a visual display?
a. the original signal is a written phrase
b. the display is in a noisy environment
c. the message is complex and/or long
d. the message has to travel around barriers
12. What does the term "spatial compatibility" refer to?
a. the physical arrangement of controls and displays
b. the degree to which symbols correspond to our conceptual associations of meaning
c. the relationships between the extent of movements of controls and displays
d. the conceptual compatibility relationships learned within a modality
13. If a device has a low "control/response ratio" which of the following is true?
a. the linear distance of control movement is greater than that of the display
b. the sensitivity and gain of the control matches that of the display
c. the angular rotation of the control is counterclockwise to the display
d. the linear distance of control movement is less than that of the display
14. What is the control order of a Position Control?
15. Which of the following is a result of designing an incompatible control-display mapping?
a. error rates are greater
b. forgetting is slower
c. response times are faster
d. user satisfaction is higher
16. In designing auditory displays what does the principle of invariance describe?
a. that the signal must be discriminable from background noise
b. that the signal should designate the same information at all times
c. that the message should be brief and short
d. that the message should not give the recipient more information than is necessary
17. Which of the following statements describes Warrick's principle? The indicator of a linear display:
a. should move in the same direction as the nearest point on the control knob
b. should move in the same direction as the farthest point on the control knob
c. should always move clockwise in the direction of the control knob
d. should move in the opposite direction to the nearest point on the control knob
18. In information theory, what is a bit?
a. simple reaction time
b. the amount of information
c. probability of a response
d. smallest unit of information stored in memory
19. In signal detection theory, what does the term "hit" rate describe?
a. the number of false alarms correctly ignored
b. the number of correct rejections
c. the number of correctly identified signals
d. the average number of correct responses
20. In signal detection theory, what does the term "sensitivity" describe?
a. the height of the signal and noise distributions
b. the peak-to-peak distance between the signal and noise distributions
c. the criterion that a subject uses to make a decision
d. the probability of a correct response
21. What do we call the grouping of information into familiar units in working memory?
22. Which of the following defines a low control-response ratio?
a. adjustment time is near a minimum value
b. large lever movement produces small display movement
c. adjustment and travel time are near maximum values
d. small lever movement produces large display movement
23. Which of the following auditory warnings is most effective and produces the fastest reaction times at 100 dB?
24. Which of the following body regions has the least tactile sensitivity?
d. upper arm
25. What does the term control-response ratio refer to?
a. the speed with which a control responds to being activated
b. the ratio of the movement distance of the control to the movement distance of the system response
c. the direction of movement of the control relative to the movement of the system response
d. the ratio of the angle of movement of the control to the magnitude of the system response
26. Name the two types of skin covering the body?
27. Graduation interval, numbered interval, scale range and scale unit are important elements of quantitative display design. Use these terms to complete the following definitions.
a. the smallest unit interval to be read is called the ___________________________
b. the highest and lowest values to be read defines the ___________________________
c. the numerical difference between the smallest scale markers is called the ___________________________
d. the numerical difference between adjacent scale numbers is called the ___________________________
28. For an auditory display, which of the following statements is true?
a. simple reaction time increases with the loudness of the sound
b. simple reaction times are unaffected by the frequency and duration of the sound
c. choice reaction times increase with increasing sound intensity
d. Choice reaction times are optimal when the sound is around 90 dB
29. Name the two types of touch used for tactile information displays?
30. Name 4 types of coding used to help with the identification of a control?
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