Film Processor Test
1) List the four steps of automatic processing.
2) T or F: The primary agents of the developer are the clearing agents.
3) _____ ______ is the term when agents cause unexposed silver halide crystals to be reduced.
4) Phindone and hydroquinone are the two reducing agents in the developer, they have great synergy and super additivity. What does super additivity mean?
5) The activator in the developer produces an alkaline (basic) pH and also does what to the gelatin to make it more permeable?
6) Restrainer (potassium bromide) is added to the developer to do what?
7) What are the fixing tanks two primary purposes?
8) T or F: Clearing agents remove unexposed silver halide crystals.
9) T or F: The fixing tank has an acidic pH (4.0-4.5) AND neutralizes any remaining reducing agents.
10) What step will cause films to become yellow and crack with age if skipped in the processing cycle?
11) ______ ______ move film from one tank to the next while ______ ______ move the film up and down within the tank.
12) T or F: Film orientation does not matter when putting a film through the processor.
13) _______ _______ is added to the developer tanks when starting a fresh tank.
14) Optimum temps for developer tanks are ________
15) T or F: Fixer is less valuable after processing than before.
Answers
1) Developing, fixing, washing, drying
2) False, reducing agents
3) Chemical Fog
4) The effect of them together is greater than the effect of the sum of their abilities apart
5) Swells the gelatin
6) Reduce the strength of reducing agents so they do not develop unexposed silver halide crystals
7) Stop the reduction processes of silver halide crystals, and remove unexposed silver halide crystals
8) True
9) True
10) Washing
11) Crossover Networks, Transport Racks
12) False, the replenishment system relies on films always being inserted the same way to maintain balance.
13) Potassium Bromide
14) 92-96 degrees F
15) False, because of silver build up that is washed off films it is actually more valuable.
