Deck 4: Filmscreen Image Receptor Systems

Question 1

What is the recommended color temperature for viewbox illuminators?

A) 1500 $\degree$ K
B) 3500 $\degree$ K
C) 6250 $\degree$ K
D) 10,000 $\degree$ K

Answer 1

6250 $\degree$ K

Question 2

Which of the following is not a component of the transport system?

A) Entrance roller
B) Master roller
C) Crossover rack
D) Microswitch

Answer 2

D
The microswitch is part of the replenishment system, since it activates the replenishment pumps in volume replenishment systems.

Question 3

Developing agents give rise to greater activity than the sum of the individual agents through a process called

A) synergism.
B) buffering.
C) catabolism.
D) oxidation/reduction.

Answer 3

A
Synergism, or superadditivity, is when the two developer agents together can produce greater activity than the sum of what each agent can do by itself.

Question 4

The addition of glutaraldehyde into the automatic developer solution helps prevent

A) overdevelopment.
B) emulsion softening.
C) rapid oxidation.
D) all of the above.

Question 5

The acceptable variation of luminance uniformity for a single viewbox is

A) 5%
B) 10%
C) 15%
D) 20%

Question 6

Relative screen speed values and screen resolution capability can be said to be

A) directly proportional.
B) inversely proportional.
C) exponentially proportional.
D) none of the above.

Question 7

Which type of film is designed to be primarily sensitive to ultraviolet light?

A) Blue-violet film
B) Orthochromatic film
C) New-modality film
D) Duplicating film

Question 8

During developer and fixer replenishment, the flow rates

A) are higher for the fixer.
B) are higher for the developer.
C) are the same for both solutions.
D) vary by processor manufacturer.

Question 9

In order for correct replenishment to occur with a volume replenishment system, the larger films are usually processed

A) lengthwise.
B) widthwise.
C) either way.
D) Position is not important, because a timer controls replenishment.

Question 10

The acceptable variation of luminance uniformity for viewboxes in a single bank is

A) 5%
B) 10%
C) 15%
D) 20%

Question 11

Which type of safelight would be safe for orthochromatic film?

A) Wratten 6B
B) GBX
C) Morlite
D) Dark green

Question 12

The section of an automatic film processor in which the highest temperature is maintained is the

A) developer.
B) fixer.
C) wash.
D) dryer.

Question 13

During automatic processing, the proper order of steps is

A) development, washing, fixation, drying.
B) development, drying, washing, fixation.
C) fixation, development, washing, drying.
D) development, fixation, washing, drying.

Question 14

Which of the following materials can be found in intensifying screen phosphors?

A) Tungsten
B) Gadolinium
C) Lanthanum
D) All of the answer options are correct.

Question 15

Which of the following is not a function of the circulation system?

A) Maintaining solution concentration
B) Agitation during development
C) Maintaining an even solution temperature
D) Replenishment of solutions

Question 16

The normal range of developer solution temperature for 90-second automatic film processors is

A) 20 $\degree$ to 23 $\degree$ C.
B) 25 $\degree$ to 27 $\degree$ C.
C) 33 $\degree$ to 35 $\degree$ C.
D) 35 $\degree$ to 40 $\degree$ C.

Question 17

A large group of radiographs are processed and the radiographer notices a progressive decrease in optical density. One possible cause could be

A) excessive developer temperature.
B) under replenishment.
C) overdevelopment.
D) None of the answer options are correct.

Question 18

Which of the following statements is true?

A) Darkroom walls should be painted black.
B) Darkrooms walls never need lead lining.
C) Darkrooms that process film images must have adequate water supply and drainage.
D) Darkroom air should be changed at least two to three times per hour.

Question 19

Which would be considered an acceptable humidity range for film storage?

A) 0% to 10%
B) 10% to 30%
C) 30% to 60%
D) 60% to 100%

Question 20

The acceptable level of luminance uniformity for viewboxes within the department is

A) 5%
B) 10%
C) 15%
D) 20%

Question 21

Variation during sensitometric testing that occurs because of the test film being run in different parts of the feed tray is called

A) bromide drag.
B) locational effect.
C) time of day variability.
D) bias.

Question 22

Which of the following is acceptable for variation in the mid-density indicator during sensitometric testing in radiography?

A) $\pm$ 0.05
B) $\pm$ 0.10
C) $\pm$ 0.15
D) $\pm$ 0.20

Question 23

B + F is measured in the

A) clear area of the film.
B) lightest step in the pattern.
C) medium step in the pattern.
D) darkest step in the pattern.

Question 24

Which type of graph is used to document the results from the sensitometric testing of film processors?

A) Control chart
B) Histogram
C) Pareto chart
D) Fishbone chart

Question 25

Replenishment rates should not vary by more than ____ of the manufacturer's recommendation.

A) $\pm$ 1%
B) $\pm$ 2%
C) $\pm$ 5%
D) $\pm$ 10%

Question 26

Which of the following is obtained by subtracting the D_min from the D_max?

A) Speed indicator
B) Mid-density indicator
C) High-density indicator
D) Contrast indicator

Question 27

Which of the following is acceptable for a variation in the B + F (base + fog) value during sensitometric testing in radiography?

A) $\pm$ 0.01
B) $\pm$ 0.03
C) $\pm$ 0.05
D) $\pm$ 0.10

Question 28

Which of the following devices is used to create a 21-step wedge pattern on a film during sensitometric testing?

A) Densitometer
B) Sensitometer
C) Film duplicator
D) Ultraviolet light

Question 29

Which of the following would be the acceptable temperature variation allowable in automatic film processor quality control?

A) $\pm$ 0.5 $\degree$ F
B) $\pm$ 1 $\degree$ F
C) $\pm$ 1.5 $\degree$ F
D) $\pm$ 2 $\degree$ F

Question 30

Processing time should not vary by more than ____ of the manufacturer's recommendation.

A) $\pm$ 1% to 2%
B) $\pm$ 2% to 3%
C) $\pm$ 5% to 7%
D) $\pm$ 10% to 15%