Airframe Oral Flashcards
What is another name for GTA welding?
TIG welding
What is used as the electrode in GTA welding?
Tungsten wire
What are three types of power that can be used for GTA welding?
DC- straight polarity, DC-reverse polarity and AC
Which type of power provides the greatest heat and deepest penetration in GTA welding?
DC-straight polarity
Which type of power is used for GTA welding aluminum and magnesium?
DC-reverse polarity
What are two advantages of laminated construction over riveted sheet metal?
light weight and rigidity
What are two popular types of core material used in laminated structures?
Foam and honeycomb
What are two popular types of matrix material used in laminated structures?
Polyester and epoxy resins
What are the two parts of polyester matrix material?
Resin and catalyst
What are the two parts of an epoxy matrix material?
Resin and hardener
What are three materials that may be used to reinforce the matrix material for aircraft stttructures?
Fiberglass, Kevlar and graphite
What is meant by a unidirectional fabric?
All major fibers run in same direction
What is meant by the ribbon direction of a honeycomb material?
Parallel to the length of the strips of material that makes up the core
What kind of repair can be made to a small damage of the core material and one face sheet of a piece of aluminum alloy honeycomb structure?
Potted compound repair
How do you grind the point of a twist drill that is to be used for drilling transparent acrylic material?
Cutting edge dubbed off to a zero rake angle, and included angle of tip should be ground to 140 degrees
What is a warp clock in a structural repair manual?
Alignment indicator to show orientation of the plies
What are two types of repair to a damaged honeycomb core composite material?
Room temperature cure repair and hot bond repair
What is function of the elevators on an airplane?
Rotate airplane on lateral axis
What is a stabilator?
Horizontal tail surface that acts as a horizontal stabilizer and an elevator
What is meant by differential aileron travel
Aileron movement which the upward moving airleron deflects a greater distance than the one moving downward
What is a Frise aileron?
Aileron with its hinge line set back from the leading edge so when its deflected upward, part of leading edge projects below the wing to produce parasite drag to overcome adverse yaw
What is a ruddervator?
Moveable control surfaces on a V-tail aircraft controlled by the rudder pedals and the yoke acts as a elevator and rudder
What is the function of airlerons on an airplane?
Ailerons rotate the airplane on longitudinal axis
If a mechanic gives a 100 hour inspection to an aircraft that proves to be unairworthy, what must the mechanic give the owner or operator of aircraft?
A signed and dated list of discrepancies
Where can you find the recommended statement to use for recording the approval or disapproval of an aircraft for return to service after a 100 hour inspection?
14 CFR 43.11
Under what conditions can an aircraft be operated with a 100 hour inspection overdue?
Aircraft can be operated for no more than 10 hours after a inspection is due for purpose of flying it to where inspection can be performed
How long can an aircraft be operated if a 100 hour inspection is overdue?
No more than 10 hours
Under what condition can an aircraft that is due for an annual inspection be operated?
When a special flight permit is issued
What certification is required for a mechanic to be able to approve an aircraft for return to service after a 100 hour inspection
Airframe and Powerplant
What determines whether or not an aircraft must be given a 100 hour inspection?
If it carrys people for hire and for flight instruction for hire
What is the difference between an annual inspection and a 100 hour inspection?
Annual requires A&P and IA / 100 hour can be done by A&P without an IA
What certification is required for a mechanic to conduct an annual inspection and approve the aircraft for return to service after the inspection?
A&P and IA
What is a progressive inspection?
Inspection approved by FAA to be performed on a schedule that doesnt require the aircraft to be out of service for the time to peform the entire inspection at once
What certification is required for a mechanic to conduct a progressive inspection?
A&P and IA
Where can you find the requirements for inspecting the altimeter and static systems of aircraft operated under instrument flight rules?
43 Appendix E
Where can you find the requirements for inspecting the ATC transponder that is installed in an aircraft?
43 Appendix F
What items must be inspected on a helicopter in accordance with instructions for Continued Airworthiness?
Drive shafts, Main rotor transmission gear box, main rotor and center section and auxiliary rotor
Where would an aviation mechanic find required special inspections?
Aircraft maintenance manual
What absorbs the taxi shocks in an oleo shock strut?
compressed air or nitrogen
How much air or nitrogen should be put into an oleo shock strut?
Enough to extend piston to height specified in aircraft maintenance manual
What is the purpose of using an exerciser jack when servicing a shock strut with fluid?
To work all the air out of the oil
What is a squat switch and where is it located?
Prevents landing gear from retracting when weight is on it / Located on the torsion links.
What kind of device is normally used as a sensor to detect the condition of a retractable landing gear?
Precision microswitch
What is the purpose of the centering cam in a nose wheel shock strut?
Forces nose wheel straight back with the strut before it is retracted