Exposures Review

Question 1

A reducing agent responsible for slowing the production of heavy densities.

Answer 1

Hydroquinone

Question 2

An preservative that controls oxidation, buffer agent

Answer 2

Soidum sulfite

Question 3

Hardens emulsion, reduces gelatin swelling

Answer 3

Glutaraldehyde

Question 4

A restrainer designed to decrease reducing agent activity. also known for its antifogging agent.

Answer 4

Potassium

Question 5

An activator used to produce alkaline pH. Also known as a swells gelatin.

Answer 5

Sodium carbonate

Question 6

Another reducing agent that can rapidly reduce fine detail shades of gray

Answer 6

Phenidone

Question 7

How much of silver bromide can be found in the emulsion.

Answer 7

95-98%

Question 8

What percentage of silver iodide is found inside the emulsion.

Answer 8

up to 5%

Question 9

What happens when a film is exposed to excessive amount of light inside a dark room

Answer 9

fogging occurs. fogging is a darkening of the film

Question 10

Over development of a film, development at excessive high temperatures, deteriorated developer, prolonged or repeated inspection of a film leads to

Answer 10

Chemical fogging

Question 11

If a film comes out grayish yellow or brown, where did the problem occur?

Answer 11

Excessive fixation or use of a exhausted fixer.

Question 12

A film appears to have grayish-white scum

Answer 12

Incomplete washing

Question 13

A uniform fogging found all around the film

Answer 13

Age fog

Question 14

A variegated color pattern on the film

Answer 14

inadequate rinsing

Question 15

Clearing agent used to remove undeveloped silver halides from emulsion

Answer 15

Ammonium

Question 16

During the fixer this chemical is used to stop reduction and provide acidic pH.

Answer 16

Acetic acid

Question 17

This chemical is used to harden emulsion during the fixing phase

Answer 17

Potassoium alum

Question 18

A universal solvent

Answer 18

Water. Used to dissolve chemicals

Question 19

A curve black or white line about 1 cm in length found film. Oven results from bending the film over the end of a finger.

Answer 19

Crinkle mark

Question 20

a lighting or tree like black mark found on the film. Caused by static electricity due from friction between the film.

Answer 20

Static mark

Question 21

Dark spots of various sizes found of the film because of migration of silver particles. Has a water droplet appear.

Answer 21

Water mark

Question 22

A corresponding white mark found a radiograph. This is caused by foreign matter such as dust, hair, fragments of paper.

Answer 22

Cassette mark

Question 23

Small clear circular spots on a radiograph. Results from formation of air bubbles in the developer.

Answer 23

Air-bell mark

Question 24

[Part 1] As optical density increases,

Answer 24

mA, time, kvp, field size, screen speed, and processor time increase.

Question 25

The film speeds refers to?

Answer 25

the speed of the blacking

Question 26

Faster films produces

Answer 26

grainy images. Reduces image detail.

Question 27

At what temperature should the control system be set at?

Answer 27

35 degree C

Question 28

What does the flood system in circulation does to the developer and fixer.

Answer 28

Constantly replenish the levels of the developer and fixer