ANSWER KEY AND FEEDBACK
Correct Answer and Feedback
To determine the minimum lettering size, you use a nomograph. To use a nomograph, you
must know the distance from the screen of the projector and of the farthest viewer (page 2-
3, para 2).
The diazo process is the most common method of producing VGTs. The diazo process
uses treated paper or foils, which you expose to ultraviolet light and develop using ammonia
vapors (page 2-5, para 3b(2)).
50-60 drops per minute
After checking and/or filling the ammonia storage tank, you set the ammonia system feed.
The procedure calls for setting the feed between 50 and 60 drops per minute. Never turn
the feed off during operation (page 2-14, para 7a(l)).
You should mount flips on alternating sides when you want to vary the order of
You hinge your flips to provide ease in presentation. When the progression of the flips is
in a specific order, you hinge them on one side in the specified order. When you need
flexibility, you mount them in an alternating pattern from side to side. While not
considered good practice, you can hinge flips at the bottom or top of the frame. Hinging at
the top is the least desirable (page 2-17, para 9).