5.1 Characteristics & Contamination Flashcards Preview

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Flashcards in 5.1 Characteristics & Contamination Deck (15)
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1
Q

JP-5 is a _________ based fuel.

A

kerosene

2
Q

What is Specific Gravity?

A

The difference between the weights of two equal volumes of material.

3
Q

What is Flash Point?

A

The lowest temperature at which vapors rising from JP-5 will ignite.

4
Q

What is Volatility?

A

The rate that JP-5 will change from a liquid to a gaseous state (vapors).

5
Q

What is Viscosity?

A

The resistance to flow.

* the viscosity of JP-5 is low

6
Q

What is Freezing Point?

A

The point at which hydrocarbon crystals appear.

* The freezing point of JP-5 is -51°F

7
Q

What are the two classes of contamination?

A
  1. ) Chemical contamination

2. ) Material contamination

8
Q

What is Commingling?

A

The mixing of two different types of petroleum products, such as JP-5 and JP-4.

9
Q

What is the most serious type of contamination?

A

Commingling

10
Q

What is the most common contaminate?

A

Water

11
Q

What are Emulsions?

A

Liquids suspended in other liquids

12
Q

What is the most common particulate contamination?

A

Rust

13
Q

What are the two categories of particulate matter?

A
  1. ) course matter (greater than 10 microns)

2. ) fine matter (10 microns or less)

14
Q

Is coarse matter visible to the naked eye?

A

Yes

* It is easily seen and removed from the fuel through filtration.

15
Q

Is fine matter visible to the naked eye?

A

No
* Gross contamination of fine matter will scatter flashes of light and may appear as a slight haze in the fuel. It can be removed through filter ration and purification.