Chapter 1 - Quality Surveillance of Aviation Fuels Flashcards
Motor gasoline (MOGAS) and jet propulsion (JP) fuels are petroleum products manufactured from crude oil by refineries. Through __________, the crude oil is separated into fractions, which are groups of compounds having boiling points within a given range.
distillation
Petroleum fuel is a liquid that contains __________ energy that is converted into mechanical energy through combustion in an engine.
heat
How is the volatility of a petroleum fuel measured?
vapor pressure and distillation
What important step in preventing the buildup of fuel vapors is required for all spaces where fuels are handled?
Operate the space ventilation system
Contaminated fuel can cause aircraft accidents with _________, ________, and/or the ___________ of entire squadrons. This means that clean fuel is a LIFE-OR-DEATH matter with aviation personnel.
Loss of life, loss of aircraft, grounding
What is the most important factor in preventing and removing contamination in fuels?
awareness of the people who handle the fuel
In order for aircraft fuel to be acceptable for delivery, aircraft must be clean and bright. They must not contain more than _______ free water or _______ particulate contamination.
10 ppm/2mg/L
Dark or black water and/or slime in drawoffs from storage tank bottoms, triggering of fuel monitors on delivery systems are all symptoms of what quality surveillance problem?
Surfactant/microbiological growth
An all-level sample is one obtained by submerging a closed sampler into a container as near as possible to what point in the container/tank?
Drawoff level
The correct sampling and labeling of petroleum products is as important to fuels inspection as correct testing. __________ of poorly drawn samples or __________ samples are two common errors that can cause laboratory results to be meaningless or, worse, misleading.
Improper containers, incorrectly identified
What are some of the general rules in sampling?
Hands clean, samples capped promptly; sample is a representative of the product being sampled, sample was drawn while system was under normal operating and steady flow conditions.
Proper identification and accurate records of samples are necessary so the test results may be correlated with the samples submitted to regional laboratories. List four items required to identify samples taken for testing by regional laboratories.
Classification, sample serial number, type fuel, date sample taken
What is the purpose to swirl the sample bottle to form a vortex in the fuel?
To remove any sediment that might cling to the bottle interior so it accumulates under the vortex
The combined contaminated fuel detector is a portable, self-contained unit designed for both gasoline and jet fuels. This instrument is used to determine what?
Solid and free water contamination in fuels
What method does the the NAVIFLASHH and Automatic Pensky-Marten Closed Cup Testers have in common?
They both are very easy to use and adjust
