Which emission results from the release of unburned fuel into the atmosphere?
Hydrocarbons
Which of the following components is not a way to remove either blowby or associated gases from the crankcase?
Crankcase circulation hose
Air injection system problems can cause each of the following except?
Increased carbon dioxide emissions
Depending on design and compression ratio diesel engine compressions reading in psi should average:
275-400
What color smoke will be seen right after start up if valve stem seals are bad
blue
What are the 2 basic types of valve seals
umbrella and O ring
2 common methods for creating variable valve timing are to use a cam shaft gear that rotates on the cam shaft or
electro hydraulic rocker arms
Which type of piston are typically used in todays fuel injected engines
forged aluminum alloy
In engines with balancer shafts shafts usually turn
twice the speed of the engine
Identify the valve that is closed before testing or servicing the compressed natural gas system
manual shut off
What is the timing adaption system used for on a compressed natural gas vehicle
it controls engine timing to allow the fuel to burn more completely
A direct electronic fuel injection system has the following injection modes that effect efficiencies and horse power except
efficiency
What does an electronic fuel injection fuel pressure regulator in a multiport fuel injection system use to control fuel pressure
engine vacuum
Identify the operating direct current voltage of a direct electronic fuel injection injector
50-100
Too much diesel fuel injected into the cylinders results in which color smoke
black
The time span between injection of diesel fuel and the ignition of the fuel is known as
ignition lag
How many RPM can a turbo operate
100000
Waste gate position under partial load
fully closed
Identify the main sensor controlling the turbo boost pressure
manifold absolute pressure
Which computer is described as a large powerful computer that processes data from sensors and less powerful control units
Vehicle control module
What is considered intrusive and can help find out if specific output devices are working
actuator diagnostic test
A passive sensor maybe tested in any of the following ways except
measuring reference voltage with a volt meter
When the motor generator serves as a high voltage motor to propel vehicle what type of voltage is applied to stator windings
3 phase DC
When working on a hybrid electric vehicle approximately how many feet should a high voltage buffer zone have around the perimeter of the vehicle
3 Feet
High voltage batteries may be cooled in any of the following ways except
oil
When preforming a 12 volt starter current draw test which condition most likely cause a low voltage high current reading
faulty starter motor
What is an acceptable volt meter reading during a starter ground circuit test
5
An alternator brushes
ride on slip rings to make a sliding electrical connection
Which is most common type of voltage regulator on todays vehicles
integral
To reduce alternator output the voltage regulator places more resistance between the
battery and field windings
A charging system load test is designed to measure alternator and regulator
current and voltage output under maximum load
On an electronic spark advance system the camshaft position sensor
Tell the computer which cylinder is on its power stoke
Which of the following is used to check ignition system output voltage
spark tester
Why do you use a special grease when installing a new ignition control module
It helps transfer heat away from the circuits
Each of the following is an advantage of high intensity discharge bulbs except
they operate on lower voltage
If you increase the current draw through a flasher such as adding trailer lights the flasher will
blink more quickly
Each of these conditions should exist during a headlight aiming test except
panel lights are dim
What component allows the operator to input and read data about the vehicle
driver information center
Which section of the logistics readiness squadron provides oversight of squadron training resources accountability and analysis
operations compliance
In the logistics readiness squadron which section serves as unit facilities manager
resource management
Who administers the unit award program in the LRS squadron
first sergeant
Which person aligned under squadron commander of the LRS functions as a key advisor on a broad range of operational readiness and enlisted enlisted human resource concerns
squadron superintendent
Which section of the deployment distribution flight provides management oversight of the wings war reserve material and support agreement programs
plans and integration
What element of the material manage flight stores and issues weapons systems spares
air craft parts store
Who in LRS is responsible for laboratory analysis of fuel and cryogenic products
fuels information center
In vehicle management serviceability standards are important when preforming vehicle inspections
to ensure personnel make similar interpretations of assembly condition
The correct fire extinguisher is determined by knowing a substance
Specific gravity
Which program reduces toxicity levels to prevent present and future treats to humans and the environment
waste minimization
Time compliance technical orders are accomplished on deep storage vehicles during the
next major inspection
Vehicle winterization requirements are essential in cold weather areas to allow for
safe operation and satisfactory performance
The winterization category in which a vehicle operating in a temp of -20 to -40 degrees F without the availability of 110 electrical outlets for preheating would be classified is
abnormal
Which deficiency type is a failure that could cause severe occupational illness
material
Special purpose vehicles procured under air force specifications have a
12 month warranty
To ensure proper repairs are made throughout the vehicles lifecycle vehicle manufacturers use instruments called
service bulletins
Who plays a key role in the coordination between vehicle management and the contractor operated parts stores contractor
base supply
The air force supply system is based upon the federal
classification cataloging system
In the supply system the name for the last 9 digits of the national stock number that specifically identifies an item of supply is the
national item identification number
To identify the manufacturer of a supply item the federal gov assigns a 5 digit code called the
commercial and gov identity code
Which technical order is often referred to as a technical manual
operations and maintenance
When it becomes known that a personal injury can be caused by problems from a vehicle or piece of equipment the air force issues a
time compliance technical order
In the TO numbering system how many parts are there in group 1 of a technical order number
5
Which air force publication initiates governs or regulated actions of units at any level
policy directive