Electricity
What is the basic unit of voltage
The Volt
What is meant by tolerance on an aircraft drawing?
The allowable plus or minus variation from the dimension given on the drawing.
How is the size of a rigid line determined?
Outside Diameter
How many copies must be made of a Form 337 after major repair?
What is the smallest cable size used in primary flight controls?
1/8th inch diameter
Which law of electricity is the most important for an aircraft mechanic to know?
Ohm's Law
How many views can there be in an orthographic projection?
Six
When routing a fluid line parallel to an electrical wire bundle, which should be on top?
The electrical wire
Who can perform a 100-hr inspection on an aircraft?
A certified mechanic that hold an A&P rating
What instrument is used to measure aircraft engine crankshafts?
Dial indicator
How can you tell the resistance of a composition resistor?
By a series of colored bands around one end of the resistor
What is the purpose of the center line on an aircraft drawing?
This line shows the center of the object in the drawing.
Minimum amount of slack for a flexible hose installed in an aircraft hydraulic system?
5-8%
Who is authorized to rebuild an aircraft engine and issue a zero-time maintenance record?
The engine manufacturer or a repair station approved by the manufacturer.
What NDI method is used to check corrosion in the internal structure of a wing?
X-ray inspection.
What is the purpose of a capacitor
To store electrical energy in electrostatic fields
What is a fuselage station number?
The distance in inches from the datum.
The principal advantage of Teflon hose?
High strength under high temps.
Can a certificated powerplant mechanic make a major repair to a propeller?
No, unless they are working under a Repair station cert.
Why is steel tempered after it has been hardened?
To remove some brittleness.
What is the specific gravity of the electrolyte in a fully charged lead-acid battery?
Between 1.275 and 1.300
Where is the title block normally located on an aircraft?
In the lower right-hand corner of the drawing
How to distinguish an AN fluid line from an AC fitting?
AN fitting has a shoulder between the end of the flare cone and the first thread. AC fitting extends to the end of the cone.
What are the 2 ratings that can be issued to a mechanic certificate?
Airframe and Powerplant
Why is it important to clean all parts thoroughly cleaned before they are inspected by dye penetrant?
Any grease or dirt in a fault will keep penetrant from seeping into the fault