4.
The labyrinth requires____________________ floor space as a lightlock.
a. At least twice as much.
b. About half as much.
c.
Over three times as much.
d. Approximately the same.
5.
Which filter is normally used in a darkroom safelight with a 15-watt tungsten bulb?
a. 5A.
b. 6A.
c.
6B.
d. 8B.
6.
An easy way to check safelight illumination is to use:
a. A film partially covered by cardboard.
b. A film and a white light source.
c.
A densimeter.
d. Low and high wattage light bulbs.
7.
What effect, if any, does a light-colored wall have on indirect safelight illumination?
a. It increases the intensity.
c.
It increases the fogging factor of exposed x-ray film.
d. It does not reduce the "safety" of indirect safelight illumination.
MD0954
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