Part 3 Flashcards by Kailah Bayangos

Q

Derived from petroleum

A

Engine fuels

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Q

Derived from crude oil

A

Petroleum fuels

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Q

Percent of hydrogen and carbon in petroleum fuels

A

14 and 86

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Q

Class of organic chemicals and give the 5

A

Hydrocarbons

Paraffin
Olefin
Diolefin
Naphthalene
Aromatic

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Q

Percentage of hydrocarbons

A

Distillation curve

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Q

Chemical reaction of carbon and hydrogen

A

Combustion

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Q

All of the hydrogen in the fuel

A

Ideal/theoretical/stoichiometric combustion

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Q

There is not enough O2

A

Rich combustion

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Q

Excess O2

A

Lean combustion

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Q

By weight
O2
N2

By volume
O2
N2

A

23.2
76.8

21
79

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Q

Ratio of the quantity of air supplied to the quantity of fuel

A

Air to fuel ratio

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Q

Measure of air fuel mixture

A

Equivalence ratio

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Q

There is not enough O2 combine in fuel

A

Rich mixture

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Q

Containing more than the required amount of air

A

Lean mixture

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Q

Density of the fuel relative to the density of water

A

Specific gravity of fuels, Y

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Q

Gravity scale devised by API

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A

API gravity

Q

API

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A

American petroleum institute

Q

Amount of heat energy contained in any fuel

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A

Heating value

Q

Based on API gravity

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A

Estimation of heating value

Q

Ability of fuels to vaporize

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A

Volatility

Q

Formation of fuel vapor

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A

Vapor lock

Q

Lowest temperature

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A

Flash point

Q

Diesel fuel must be volatile

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A

Volatility

Q

Temperature at which crystals begin to appear

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A

Cloud point

Highest temperature

Pour point

Occurs when air and fuel are mixed

Combustion by explosion

Occurs when fuel is injected

Boundary combustion

Occurs when a combustible mixture is heated

Detonation

Measure of knock resistance of gasoline

Octane rating

Rated 100

Isooctane

Rated 0

Heptane

Indicator of anti-knock

Cetane rating

Value 100

N-cetane Cetane

Value 0

Alpha-methylnaphthalene

Value 15

Heptamethylnonane