Deck 3: Filmscreen Image Receptors, Darkrooms, and Viewing Conditions

Question 1

The amount of light either scattered or emitted by a surface is known as

A)luminance.
B)radiant flux.
C)luminous flux.
D)illuminance.

Answer 1

D

Question 2

Which of the following can be thought of as the amount of information recorded in an image divided by the information available in the part?

A)Line spread function
B)Point spread function
C)Edge spread function
D)Modulation transfer function

Answer 2

D

Question 3

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%

Answer 3

C

Question 4

What is the recommended color temperature for viewbox illuminators?

A)1500° K
B)3500° K
C)6250° K
D)10,000° K

Question 5

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 6

The ability of an imaging system to distinguish structures with similar x-ray transmission as separate entities is known as

A)contrast resolution.
B)spatial resolution.
C)temporal resolution.
D)spectral matching.

Question 7

Fifteen ft-cd would be equivalent to approximately ____ lux.

A)100
B)150
C)160
D)210

Question 8

Which type of safelight would be safe for orthochromatic film?

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

Question 9

The acceptable variation of luminance uniformity for a single viewbox is

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

Question 10

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 11

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

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

Question 12

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

A)Tungsten
B)Gadolinium
C)Lanthanum
D)All of the above

Question 13

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

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

Question 14

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 15

The rare earth phosphor, lanthanum oxybromide, emits what color of light?

A)Amber
B)Green
C)Blue
D)White