ASSIGNMENT 8
Textbook Assignment:
"Image Processing and Control."
Pages 10-1 through 10-30.
8-1.
8-2.
8-3.
Learning Objective:
Recognize
functions of the various solutions
used to process light-sensitive
materials.
What process is most commonly
used for film development?
1.
Physical
2.
Chemical
3.
Intensification
4.
Latent conversion
When performed correctly, the
chemical development process
reduces exposed silver halides
to what composition?
1.
Black metallic silver
2.
Soluble-silver salt
3.
Dye-image salt
4.
Gray-tone dye
All silver halides, both exposed
and unexposed, can be reduced to
metallic silver in the development
process.
1.
True
2.
False
8-4.
What term describes the amount of
silver in a film emulsion that has
been reduced to black metallic
silver?
1.
Light struck
2.
Rate phenomenon
3.
Density
4.
Primary silver
8-5.
What is the most important
ingredient in a developing
solution?
1.
Preservative
2.
Accelerator
3.
Restrainer
4.
Reducing agent
8-6.
What is the purpose of the
preservative in a developing
solution?
1.
It makes the image permanent
2.
It retards oxidation
3.
It prevents the formation
of poisonous gas
4.
It prevents the reducing agent
from attacking the unexposed
silver halides
8-7.
Which of the following chemicals
may be used as a preservative?
1.
Hydroquinone
2.
Metol
3.
Sodium hydroxide
4.
Sodium sulfite
8-8.
What ingredient in a developing
solution makes it alkaline?
1.
Reducing agent
2.
Accelerator
3.
Preservative
4.
Restrainer
8-9.
What two functions does the
accelerator in a developing
agent serve?
1.
It constricts the emulsion
and prevents aerial oxidation
2.
It constricts the emulsion
and increases the rate of
development
3.
It swells the emulsion and
absorbs the halide elements
freed from the silver
4.
It swells the emulsion and
retards the rate of development
8-10.
A developer with which of the
following pH values will most
likely produce an image with a
finer grain?
1. 1.5
2.
5.5
3. 8.5
4.
11.0
57

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