Weight & Balance
What is the standard weight used for AvGas in W&B calculations?
6 lbs/gal
What types of metals can be tested using magnetic particle inspection?
Ferromagnetic metals like iron, steel, and some alloys.
Which type of corrosion is caused by the collapse of vapor bubbles near a metal surface in a liquid?
Cavitation
What document must be displayed in the cabin or cockpit to show that the aircraft has permission to fly?
Airworthiness certificate.
What is FOD in aviation maintenance?
Foreign Object Damage: any loose object that can harm aircraft, people, or equipment.
What is electric current?
The flow of electric charge, measured in Amps.
Why is it important to conduct an adverse-loaded center of gravity (CG) check?
To ensure the CG remains within limits under extreme legal loading conditions.
An adverse-loaded CG check ensures that even with extreme but legal loading, the aircraft’s center of gravity remains within safe and certified limits.
How often is an annual inspection required for an aircraft to remain airworthy?
Every 12 calendar months, regardless of how many flight hours have been logged during that time.
If corrosion damage exceeds the damage limits to the extent repair is not possible, the repair is called:
Replacement
Which FAA publication offers non-regulatory instructions for complying with aviation regulations?
Advisory Circular
What does the acronym P.A.S.S. stand for when using a fire extinguisher?
Pull, Aim, Squeeze, Sweep
Which electrical quantity is described as the pressure or push that causes current to flow in a circuit?
Voltage
What is the calculaƟon of Maximum Except Takeoff (METO) fuel based on?
Engine horsepower
Which of the following statements best compares the typical uses of two different inspection methods?
Visual inspection is used to check wing spars and fuselage skin, while dye penetrant is used to check engine parts and landing gear parts.
Corrosion that forms in tight gaps where air can’t circulate is known as __________.
Crevice Corrosion
Which FAA form is used to record a major repair or major alteration on an aircraft?
Form 337
During a turboprop engine start-up, the exhaust gas temperature (EGT) rises rapidly and nears the maximum limit. Why did this most likely happen?
Too much fuel entering the combustion chamber before sufficient airflow is established.
How can you visually idenƟfy the negaƟve terminal of an electrolytic capacitor?
It is marked with a minus (–) sign or a black stripe.
An aircraft is placed on three scales to determine its weight. The nose wheel scale reads 340 lbs, the left main gear reads 1,130 lbs, and the right main gear reads 1,140 lbs. What is the total weight of the aircraft?
2,610 lbs
All three gear readings are added together:
340 (nose) + 1,130 (left) + 1,140 (right) = 2,610 lbs.
A torque wrench has a sticker that shows it was last calibrated over a year ago. What should you do before using it on an essentiual flight control part?
Do not use the torque wrench but have it recalibrated prior to use.
What increases the risk of galvanic corrosion in aircraft metals?
Connecting small active metal parts to large less-active ones
Which FAA document permanently stays with the aircraft?
Form 8100-2
What is one purpose of an auxiliary power unit?
To power aircraft systems when engines are off.
In capacitive circuits, what leads what in phase relationship?
Current leads voltage.
You are correcting a forward CG condiƟon on an aircraft. The current CG is too far forward by 2.5 inches, and the aircraft has a total weight of 3,000 lbs. A ballast compartment is available 150 inches aft of the current CG. How much ballast must be added to move the CG exactly 2.5 inches aft?
50 lbs
Required moment shift = 3,000 lbs × 2.5 in = 7,500 in-lb
Ballast weight = 7,500 in-lb ÷ 150 in = 50 lbs
An aircraft sustains minor damage at a remote location and cannot be repaired on-site. What type of permit is required to fly it to the nearest maintenance facility?
Special flight permit (ferry permit)
During routine checks, an Aviation Maintenance Technician (AMT) notices that a protective coating on a control surface is beginning to peel. What should the AMT do to prevent corrosion from starting?
Touch up the damaged coating immediately to restore protection.
Which FAA form must be used when applying for a mechanic certificate?
FAA Form 8610-2
Where should the signalman stand when guiding an aircraft?
In front-left of cockpit, visible to pilot.
Why is it important for the constant speed drive (CSD) to maintain a steady alternator speed during flight?
To maintain a constant electrical frequency for aircraft systems.
A technician is calculating the loaded center of gravity (CG) for a small aircraft. The total loaded weight is 3,600 lbs, and the total moment is 331,200 inch-pounds. What is the CG?
92.0"
CG = Moment ÷ Weight = 331,200 ÷ 3,600 = 92.0"
In a micrometer reading, the sleeve shows 0.340 inch. The thimble reading is between 0.006 inch and 0.007 inch. The Vernier scale ‘0’ line confirms a thimble reading of 0.006 inch. What is the total measurement?
0.3460 inch
An Aviation Maintenance Technician (AMT) is cleaning a titanium engine part that was exposed to saltwater and is bolted next to a magnesium bracket. What is the best course of action before reinstalling the part?
Apply two coats of primer and cover the contact area with approved tape.
Under 14 CFR Part 65, when can a mechanic reapply for a certificate after it has been temporarily revoked?
1 year
When attempting an engine start, the AMT experiences a hung start. What should they do?
Abort the start immediately and follow the manufacturer’s procedures.
During troubleshooting, you notice the generator output drops when several aircraft systems are turned on. What should you inspect to fix the issue?
The generator’s field voltage regulator