Processing the Latent Image

Question 1

What may cause an increase in radiographic density?

Answer 1

Rack not rolling properly

Question 2

Which part of the transport system directs a film from the bottom of a rack back toward the top?

Answer 2

Turnaround assembly

Question 3

Which system should be inspected if the development time is too long?

Answer 3

Transport system

Question 4

What applies to a processor with a low workload?

Answer 4

High replenishment rate

Question 5

A problem of light films is traced to the processor. Which of the following processing conditions is not a probable cause?

Answer 5

Over-replenishment

Question 6

The normal development temperature for the automatic processor is?

Answer 6

90-95 degrees F

Question 7

Which major system of the processor would be the most likely cause of films having a brownish appearance?

Answer 7

Replenishment system

Question 8

The overflow of which processor tank must be specially filtered before going into the sewer system?

Answer 8

Fixer

Question 9

The microswitches attached to the entrance rollers activate which major system?

Answer 9

Replenishment system

Question 10

Which major system of the processor is maintained at 120 degrees F?

Answer 10

Drying system

Question 11

What is lacking if films exit the processor with a greasy appearance and feel?

Answer 11

Wash

Question 12

An increase in film fog may be caused by all of the following except?

Answer 12

Developer temperature too low

Question 13

What determines the volume of chemicals pumped into the processor tanks?

Answer 13

Length of film

Question 14

How often is a sensitometric strip run?

Answer 14

Daily

Question 15

What is the speed index tolerance?

Answer 15

+ .15

Question 16

If the developer temperature is too low the film will be?

Answer 16

Light

Question 17

What turns the film around at the top of the processor tank?

Answer 17

Crossover

Question 18

The exposed silver bromide crystals are reduced to metallic silver in the?

Answer 18

Developer

Question 19

Fog on the film may mean?

Answer 19

The developer temperature was too high

Question 20

What squeezes off excess chemicals before the film travels to the next section of the processor?

Answer 20

Crossover

Question 21

Which variables should be controlled in the darkroom?

Answer 21

Temperature, humidity, and light

Question 22

What part of the film contains silver halide crystals?

Answer 22

Emulsion

Question 23

Film storage temperature that are too high could cause which of the following?

Answer 23

Fogging

Question 24

What happens when photons interact with silver halide crystals in the film emulsion?

Answer 24

Electrons are freed in the crystals,
Electrons move the sensitivity specks, and
Sensitivity specks gain a negative charge

Question 25

Approximately how long does it take to develop a film in an automatic processor?

Answer 25

45-90 seconds

Question 26

When does the latent image appear on the film?

Answer 26

After exposure and before development

Question 27

What reduces the exposed silver bromide to metallic silver?

Answer 27

Developing agent

Question 28

What contains potassium bromide?

Answer 28

Restrainer

Question 29

What is used as a hardener?

Answer 29

Glutaraldehyde

Question 30

What maintains proper PH in the fixer?

Answer 30

Buffer

Question 31

What preserves the life of the processing chemicals; maintains balance among developer components?

Answer 31

Sodium Sulfate

Question 32

What stops the action of the developer?

Answer 32

Activator

Question 33

What is also called hypo, cleaning agent?

Answer 33

Ammonium thiosulfate

Question 34

What removes the unexposed and undeveloped silver bromide crystals?

Answer 34

Fixing agent

Question 35

What is the chemical used as a developing agent; produces black tones slowly?

Answer 35

Hydroquinone

Question 36

What is the chemical used as a developing agent; develops the gray tones?

Answer 36

Phenidone

Question 37

Intensifying screens function because of what process?

Answer 37

X-ray photons striking the screen produce light photons

Question 38

What is needed to convert a latent image into a manifest image?

Answer 38

Develop the film

Question 39

What controls the replenishment rate?

Answer 39

Entrance rollers

Question 40

Contaminated developer chemicals must be?

Answer 40

Discarded

Question 41

Contamination of the processor chemicals occur when?

Answer 41

When the fixer is splashed into the developer

Question 42

What controls the film-feeding rate?

Answer 42

Entrance rollers

Question 43

A film with a wide latitude generally has?

Answer 43

The ability to show many shades of gray

Question 44

The unexposed and undeveloped silver bromide crystals are removed in the?

Answer 44

Fixer

Question 45

What gets replenished?

Answer 45

Both the developer and the fixer

Question 46

Which major system of the processor is responsible for mixing chemicals with the processor?

Answer 46

Recirculating system

Question 47

Not turning on the water to the processor will cause?

Answer 47

Greasy films, because the chemicals would not be washed from the film.

Question 48

Which major system for the processor is responsible for maintaining chemical strength in the processor?

Answer 48

Replenishing system; it pumps in fresh chemistry each time a film is processed.

Question 49

how often should the crossover racks be cleaned?

Answer 49

Daily

Question 50

Which major system of the processor will filter out reaction particles from the developer?

Answer 50

Recirculating system; has filters placed "inline" that filter out impurities from the developer.

Question 51

Which system draws chemicals from the bottom of the developer and fixer tanks of the processor and returns these chemicals through the side of the tanks?

Answer 51

Recirculating system; this helps to remove reaction particles and byproducts of processing that may settle to the bottom of the tanks.

Question 52

Guideshoes out of alignment would cause what problems?

Answer 52

Jamming of the processor and Scratches on the flim.

Question 53

Which method of silver recovery requires a rectifier?

Answer 53

Electrolytic method; uses a DC current passed between diodes and uses a rectifier to convert AC from the power outlet to DC needed fro the process.

Question 54

Scratched film during processing is most likely caused by which major system of the processor?

Answer 54

Transport system; it moves the film through the processor and any misalignment or buildup on the system can scratch the film.

Question 55

What should be checked during preventative maintenance?

Answer 55

All moving parts, All hoses, and All filters. Checked with each PM performed.

Question 56

Which method of silver recovery relies on a base metal filter reacting with the acid of the fixer?

Answer 56

Metallic cartridge method; acts to give up electrons as it reacts with the acid of the fixer.

Question 57

Which major system of the processor is responsible for removing reaction particles from the film during processing?

Answer 57

Transport system; the movement and action of the rollers of the transport system act to "shake off" reaction particles from the film.

Question 58

What if lacking if films exit the processor with a milky appearance?

Answer 58

The Fixer; due to an inadequate fixer.

Question 59

Which component of the transport system directs the film from one tank to the next?

Answer 59

Crossover assembly; they are shaped and positioned to guide the film from one tank to the next.

Question 60

What determines the amount of chemicals pumped into the processor tanks?

Answer 60

Inches of film (per inch of film); as the film passes through the entrance rollers the replenishing system is activated, so the longer the film, the longer it stays on. The delivery rate is determined to deliver a preselected amount of chemicals per inch of film.