Basic Photography Course

7-44.

What is the most important reason

for ensuring that photographic
chemicals are mixed properly?

using improperly mixed
chemicals is always hazardous

to the user's health

Improperly mixed chemicals may
ruin the film from an important

mission

The mixing equipment may be
damaged

7-45.

The storage of unmixed chemicals

should be at what approximate
temperature and relative humidity,

respectively?

20°F; 68 percent

40°F; 75 percent

68°F; 20 percent

75°F; 40 percent

7-46.

Containers made from what material
are best for storing liquid
developer?

Hard rubber

Plastic

Glass

Stainless steel

7-47.

Air space should never be left in
a large bottle used for storing
developer replenisher.

True

False

7-48.

Floating lids are used for storage

of large volumes of solution in
tanks for what primary purpose?

To prevent dust from settling

on the surface of the solution

To prevent water in the

solution from evaporating

To prevent unauthorized use

of the solution

To protect the solution from

aerial oxidation

7-49.

7-50.

7-51.

7-52.

Which of the following materials

is NOT suitable for a photographic
chemical storage tank?

Aluminum

Glass

316 Stainless Steel

Polyethylene

When washed well between uses,
wooden paddles make excellent

chemical mixing tools.

True

False

The curved surface at the top of
a solution is known by what term?

Convexation

Concavation

Meniscus

Mantissa

An increase in temperature has

what effect, if any, on chemical

action?

It increases

It decreases

None

Learning Objective:

Identify

items of equipment used in Navy
imaging facilities to test or

verify chemical solutions.

7-53.

What instrument is used to
measure the specific gravity

of a solution?

Densitometer

pH meter

Hydrometer

Thermometer

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Basic Photography Course

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DOFMaster for Windows On-line Depth of Field Calculator DOFMaster for Mobile Devices On-line Depth of Field Table Hyperfocal Distance Chart Articles FAQ Recommended Books Support Contact Links Home As an Amazon Associate I earn from qualifying purchases.	contents <- previous page next page -> 7-44. What is the most important reason for ensuring that photographic chemicals are mixed properly? 1. using improperly mixed chemicals is always hazardous to the user's health 2. Improperly mixed chemicals may ruin the film from an important mission 3. The mixing equipment may be damaged 7-45. The storage of unmixed chemicals should be at what approximate temperature and relative humidity, respectively? 1. 20°F; 68 percent 2. 40°F; 75 percent 3. 68°F; 20 percent 4. 75°F; 40 percent 7-46. Containers made from what material are best for storing liquid developer? 1. Hard rubber 2. Plastic 3. Glass 4. Stainless steel 7-47. Air space should never be left in a large bottle used for storing developer replenisher. 1. True 2. False 7-48. Floating lids are used for storage of large volumes of solution in tanks for what primary purpose? 1. To prevent dust from settling on the surface of the solution 2. To prevent water in the solution from evaporating 3. To prevent unauthorized use of the solution 4. To protect the solution from aerial oxidation 7-49. 7-50. 7-51. 7-52. Which of the following materials is NOT suitable for a photographic chemical storage tank? 1. Aluminum 2. Glass 3. 316 Stainless Steel 4. Polyethylene When washed well between uses, wooden paddles make excellent chemical mixing tools. 1. True 2. False The curved surface at the top of a solution is known by what term? 1. Convexation 2. Concavation 3. Meniscus 4. Mantissa An increase in temperature has what effect, if any, on chemical action? 1. It increases 2. It decreases 3. None Learning Objective: Identify items of equipment used in Navy imaging facilities to test or verify chemical solutions. 7-53. What instrument is used to measure the specific gravity of a solution? 1. Densitometer 2. pH meter 3. Hydrometer 4. Thermometer 53 contents Basic Photography Course <- previous page next page ->	As an Amazon Associate I earn from qualifying purchases.
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