Term
Which law of electricity is the most important?
Three Elements in Ohm Law? |
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Definition
Ohms Law
Voltage, Current, Resistance |
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Term
| Three things all electrical circuits contain? |
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Definition
| Source of Electrical Energy (battery); A Load to use the Energy (bulb); Condutors to Join source/load (wires) |
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Term
Purpose of a Capacitor?
basic unit of capacitance? |
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Definition
Store energy in electrostatic fields.
Farad |
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Term
Three Types of DC Circuits?
How many Cells in a 24 volt battery? |
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Definition
Series, parallel, series-parallel
12 volts. |
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Term
Instrument used to measure specific gravity?
used to neutralize spilled electrolyte in lead-acid battery? |
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Definition
hydrometer
Baking Soda; bicarboate soda and water |
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Term
Precautions when both lead/acid and nickel/cadium are serviced?
Chemical used to neutralize nickel/cadium battery? |
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Definition
Keep both batteries seperated
Boric Acid and Water |
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Term
How many Ohms in megaohm?
How many amps in milliamp? |
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Definition
1,000,000 (0ne million)
.001 (one thousandths) |
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Term
what is tolerance on aircraft drawings?
What is Fuselage station #? |
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Definition
allowable plus/minus variation from the drawing
Distance in inches from the datum, measured along longidutinal fuselage |
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Term
what is meant by datum?
Reasons Weight/Balance Are important? |
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Definition
Identified referance chosen by manufacturer
safety and performance of the aircraft |
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Term
what is meant by moment?
what is the arm? |
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Definition
Force that cause rotation. weight X distance from datum.
Distance in inchsed from the datum + or - |
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Term
Where do you find the Leveling means?
Where are the arm of an item installed? |
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Definition
Type Certificate Data sheets
Type Certificate Date Sheets |
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Term
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Definition
| items such as the chocks, used to hold the aircraft on the scales. |
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Term
What is meant by permament ballast?
When routing a fluid line parallel to electrical, which should be on top? |
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Definition
Installed to bring empty weight center of gravity within allowable limits
Electrical wIRE |
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Term
How do you distinguish from an AN to AC fitting?
whats is minimum amount of slack for flexible hose? |
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Definition
AN has a shoulder and AC threads extend to the flare.
Minimum 5% slack. |
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Term
where are the quick-disconnect fluid line couplings normally used?
How much pressure used to proof test flexible hose? |
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Definition
Where engine-driven pump connects to hyricalic system.
Two times normal operating pressure. |
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Term
Explain dye penetrate process?
What inspection should be used for non-ferrous metal for intergranual corrosion? |
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Definition
Clean part. apply penetrant. remove penetrant and apply developer.
eddy current inspection |
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Term
What inspection methos would be used to check internal structure of a wing
Why must piece of aluminum be quenched after heat treament |
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Definition
x ray
to prevent intergranual corrosion. |
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Term
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Definition
| heat treated rivets that are stored in subfreezing box until ready to use. Delays hardening. |
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Term
What type of load should be avoided when using a self-locking nut
what determines grip length? |
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Definition
Anywhere that there is any rotational forces
thickness of both metals being held together. |
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Term
Smallest size cable allowed for primary flight control cables
What type of cable are used with pulleys to change cable direction? |
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Definition
1/8 inch diamater cable
Extra Fexible (7 x 19) |
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Term
| How does filiform corrosion usally appear |
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Definition
| As thread-like puffines underneath polyurethane and other top coat finishes. |
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Term
| What is the proper way to extinguish an indcution system fire when starting a recipricating engine? |
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Definition
| Keep engine running and blow fire out. OR use CO2 directed at carburator inlet. |
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Term
| What must be done if a hung start occurs when starting a turbo jet? |
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Definition
| Terminate the starting operation and troubleshoot why it did not accelerate as it should |
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Term
| what is meant by liquid lock and how is it cleared? |
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Definition
| Oil accumulates in the cylinder and prevents piston movement. removed a spark plug and turn engine crankshaft to force out all oil. |
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Term
| what special precautions should be taken when towing an aircraft that is equipped with a streerable nose wheel? |
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Definition
| Be sure nosewheel does not try to turn past its stops. Torsion links on nosewheel strut should be disconnected. |
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Term
What grade of aviation gasoline is dyed blue?
what is meant by detonation in engine? |
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Definition
Low=lead 100 octane
uncontrolled burning in cylinder, premature explosion instead of smooth burning |
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Term
| what information must be located near the fule tank filler in a recip engine? |
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Definition
| AVGAS and the minimum fuel grade. |
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Term
| What information must be located near the fuel tank opening of a turbine engine? |
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Definition
| JET FUEL, fuel designations or refferance to info. for pressure fuel, maximum fuel supply and defuel pressure |
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Term
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Definition
Cylinder Head Temparture
Turbine Inlet Temparture
Engine Pressure Ratio |
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Term
N1 presuure
N2 pressure
Trim Settings |
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Definition
low pressure
high pressue
Idle/Full Power |
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Term
| Where is filiform corrosion most likely to occur on an aircraft? |
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Definition
| Under a dense coating of topcoat enamel such as polyurethane. Improper cured primer. |
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Term
| where is intergranular corrosion most likely to occur? |
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Definition
| along grain boundaris of aluminium alloys that have been imporperly heat treated. |
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Term
| where is dissimilar metal corros mostly likely to occur? |
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Definition
| anywhere to different types of metal come in contact with each other. |
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Term
| where is stress corrosion most likely to occur? |
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Definition
| any metal that is continually under a tensile stress. |
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Term
| what is used to keep corriosion from formin on structural aluminum alloy |
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Definition
| oxide coating of aluminim cladding. |
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Term
| what tools are porepr for removing corrosion from aluminum alloy |
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Definition
| aluminum wire brushes. rotary file can also be used for extreme corrosion. |
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Term
| what can be used to repair the anoized surface of an aluminum alloy part |
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Definition
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Term
what is the area of a circle?
what is the volume of the cylinder? |
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Definition
A= PIE x R^2
V= PIE x R^2 x H |
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Term
| what records must be made of a major reapir to an structure? |
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Definition
| An FAA Form 337 must be completed for the reapir and a record must be made in the aircraft records referancing the Form 337 by its date. |
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Term
| How many copies must be made of a Form 337 after a major repair? What is the dispostion of each copy. |
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Definition
| Atleast two copies. Original signed form for the owner. A copy for the FAA district office. |
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Term
| Who is authorized to perform a 100 hour inspection on an aircraft? |
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Definition
| A certified mechanic who holds an A&P rating. |
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Term
| Who is authoriezed to perform an annual inspection? |
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Definition
| Certified A&P mechanic who holds an IA. |
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Term
| For how long must the record of a 100 hour inspectrion be held? |
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Definition
| For one year, or until the next 100 hour inspection is done. |
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Term
| can a A&P mechanic supervisor an unliscenced mechanic perform a 100 hour inpection |
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Definition
| No, certified mechanic must personally perform work |
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Term
| where can you find a list of basic items that must be inspection on a 100 hour inspection |
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Definition
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Term
| what is meant by a progessive inspection |
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Definition
| inspection approved by the FAA office in which an aircraft is inspected according to a aprovied schedule. allows inspections to be split up. |
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Term
| what action must a mechanic take if the aircraft being inspected for 100 hour fails because of unairworthy compenent. |
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Definition
| records must state that the aicrafts has been inspected but found an unairworthy condition. Signed and dates list of discrepanices give to the owner of the aircraft. |
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Term
| what are the three basic physical states in which matter can exist? |
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Definition
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Term
| What formula is used to find the amount of work done when an object is moved across the floor? |
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Definition
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Term
| Ehat are the three methods of heat transfer |
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Definition
| Conduction, convection, and radiation |
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Term
what is a FAA AC?
what is a FAR? |
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Definition
publication from FAA used as informational
Actual law regardng conduct of aviation |
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Term
| what is the purpose of an AD? |
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Definition
| issued by the FAA to warn the owner of an aircraft f a condition that has been discovered that renders the aircraft or engine unairworthy. |
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Term
| Where can a mechanic find a list of major alterations that have been made and approved for FAA certifiacated aircraft? |
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Definition
| Summary of Supplplemtal Type Certificates |
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Term
| In what information providd by the FAA can a mechanic find a list of engines that are approved for the specfic airplane? |
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Definition
| Type Certifcate Data Sheet. |
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Term
| What part of the regulations can a mechanic find the specfications for the identification numbers that must be idsplayed on the aircraft? |
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Definition
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Term
| Manufactures keep the mechanics aware of changes that affect safety and performance by the issuance of? |
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Definition
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Term
| in what goverment publication can a mechanic find the category in which a particular aicraft is certified? |
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Definition
| Type Certificate Data Sheets for the aircraft |
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Term
| What part of the FAA regs gives the requirements for the issuance of a mechanic certifcate? |
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Definition
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Term
| for how long is a temporary mechanic certifcate valid? |
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Definition
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Term
| who is authorized to approve an aircrat for return to service after a major repair? |
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Definition
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Term
| who is responsible for ensuring all of the aircraft records are kept up to date? |
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Definition
| The owner of the aicraft. |
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Term
| how soon must a holder notify the FAA of an adress change? |
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Definition
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