5.1 Characteristics & Contamination Flashcards

1
Q

JP-5 is a _________ based fuel.

A

kerosene

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2
Q

What is Specific Gravity?

A

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

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3
Q

What is Flash Point?

A

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

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4
Q

What is Volatility?

A

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

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5
Q

What is Viscosity?

A

The resistance to flow.

* the viscosity of JP-5 is low

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6
Q

What is Freezing Point?

A

The point at which hydrocarbon crystals appear.

* The freezing point of JP-5 is -51°F

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7
Q

What are the two classes of contamination?

A
  1. ) Chemical contamination

2. ) Material contamination

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8
Q

What is Commingling?

A

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

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9
Q

What is the most serious type of contamination?

A

Commingling

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10
Q

What is the most common contaminate?

A

Water

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11
Q

What are Emulsions?

A

Liquids suspended in other liquids

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12
Q

What is the most common particulate contamination?

A

Rust

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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)

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14
Q

Is coarse matter visible to the naked eye?

A

Yes

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

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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.

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