From Page 66
(2) Quite right.
Okay, we should also mention audio displays.
An important rule of
thumb you learned in Lesson 10 was how to determine the proper intensity of
an audio signal to use in a noisy environment.
This rule of thumb was:
determine the detection threshold for that signal when the condition is at
its maximum noise level. Then set your audio display signal at an intensity
level which is halfway between the detection level and 110 dB (you remember
this now, don't you?)
Let's touch on controls, now, which we talked about in Lessons 11-13.
For example, when we discussed correct positioning of controls, we noted
that it is important to take into account the operator's dominant hand and
foot, the possibility of accidental activation, the grouping of functionally
similar controls, the priority of certain controls, and the positioning of
In addition, which of the following factors would you say
influence control design?
Heat, weightlessness, and humidity. Turn to Page 92.
All of these may influence control design. Turn to Page 42.
None of these answers are correct. Turn to Page 47.