Airframe Electrical Quiz 2
Terms in this set (124)
Most aircraft wire is rated at what voltage? 600 volts
What two metals are used as conductors in aircraft Copper and Aluminum
wiring?
What three materials are used to plate the Tin, Silver, Nickel
conductor in aircraft wiring to prevent surface
oxides from forming?
In general, what factors are considered when Length will not exceed the allowable 'E' Drop, and can carry current without
selecting the proper size of wire? overheating.
What extra precautions should be taken when The mechanical strength, installation handling of these wires -
using wire smaller than #20? Vibration, Flexing, and Termination.
What is the minimum number of conductor strands 19 strands
required in aircraft quality wire?
State the four common aircraft system voltages. 14 volts, 28 volts, 115 volts, 200 volts
What four factors affect the resistance of wires? Wire Length, Cross Sectional Area wire, Temperature, and Conductor type
What happens to the resistance of a wire if its Resistance is increased.
temperature increases?
What type of wiring method is most often Single-wire method
employed in the design and operation of aircraft
electrical and electronic systems?
, By what means should aircraft electrical Circuit Breakers or fuses
circuits/wires be protected from excessive current?
What is the maximum acceptable voltage drop 1 voltage drop
from the voltage source to the utilization
equipments ground in a 28 volt system?
What things should be checked for when inspecting Abrasions, condition of termination, defective insulation, and potential
an aircrafts electrical wiring? corrosion.
What things should be included in the identification Type of circuit, location within the circuit, and wire size.
stamp found along the electrical wires length?
Name three methods for marking wires. Hot-stamp, Lazer, Sleeving
Why is bare copper electrical wire not suitable for Oxide film is poor conductor of electricity and inhibits determination of wire.
aircraft use?
What is the temperature operating limit of 150 degree Celsius
tin-coated copper-stranded electrical wire?
Why should solid, round conductor wire be avoided It is susceptible to fatigue breakage
in aircraft?
What things should be considered when Load current, it produces heat that directly experienced by your wire
selecting suitable electrical wiring in insulation.
regards to its insulation characteristics?
Who should you consult with prior to substituting a Aircraft Manufacturer
faulty electrical wire installed in an aircraft?
In general, describe the construction of Shielding is the process of applying a metallic covering to wiring
shielded electrical wire.
What is the purpose of shielded electrical wire? Eliminate interference caused by stray electromagnetic energy
What are four installation requirements for electrical Avoid sharp surfaces, routed above these lines and equipment (containing
wiring/wiring bundles? oxygen, oil, fuel, hydraulic fluid, or alcohol), routed away from high-
temperature equipment and lines, routed so that fluid drain away from the
connectors.
What is the maximum spacing for supports used in 24 inches
the installation of electrical wiring in aircraft?
What type of materials are used to insulate and Install phenolic blocks, plastic liners, or rubber grommets.
protect aircraft wiring that runs through holes,
bulkheads, floors, or structural members where it
is impossible to install off- angle clamps to
maintain wiring separation?
Terms in this set (124)
Most aircraft wire is rated at what voltage? 600 volts
What two metals are used as conductors in aircraft Copper and Aluminum
wiring?
What three materials are used to plate the Tin, Silver, Nickel
conductor in aircraft wiring to prevent surface
oxides from forming?
In general, what factors are considered when Length will not exceed the allowable 'E' Drop, and can carry current without
selecting the proper size of wire? overheating.
What extra precautions should be taken when The mechanical strength, installation handling of these wires -
using wire smaller than #20? Vibration, Flexing, and Termination.
What is the minimum number of conductor strands 19 strands
required in aircraft quality wire?
State the four common aircraft system voltages. 14 volts, 28 volts, 115 volts, 200 volts
What four factors affect the resistance of wires? Wire Length, Cross Sectional Area wire, Temperature, and Conductor type
What happens to the resistance of a wire if its Resistance is increased.
temperature increases?
What type of wiring method is most often Single-wire method
employed in the design and operation of aircraft
electrical and electronic systems?
, By what means should aircraft electrical Circuit Breakers or fuses
circuits/wires be protected from excessive current?
What is the maximum acceptable voltage drop 1 voltage drop
from the voltage source to the utilization
equipments ground in a 28 volt system?
What things should be checked for when inspecting Abrasions, condition of termination, defective insulation, and potential
an aircrafts electrical wiring? corrosion.
What things should be included in the identification Type of circuit, location within the circuit, and wire size.
stamp found along the electrical wires length?
Name three methods for marking wires. Hot-stamp, Lazer, Sleeving
Why is bare copper electrical wire not suitable for Oxide film is poor conductor of electricity and inhibits determination of wire.
aircraft use?
What is the temperature operating limit of 150 degree Celsius
tin-coated copper-stranded electrical wire?
Why should solid, round conductor wire be avoided It is susceptible to fatigue breakage
in aircraft?
What things should be considered when Load current, it produces heat that directly experienced by your wire
selecting suitable electrical wiring in insulation.
regards to its insulation characteristics?
Who should you consult with prior to substituting a Aircraft Manufacturer
faulty electrical wire installed in an aircraft?
In general, describe the construction of Shielding is the process of applying a metallic covering to wiring
shielded electrical wire.
What is the purpose of shielded electrical wire? Eliminate interference caused by stray electromagnetic energy
What are four installation requirements for electrical Avoid sharp surfaces, routed above these lines and equipment (containing
wiring/wiring bundles? oxygen, oil, fuel, hydraulic fluid, or alcohol), routed away from high-
temperature equipment and lines, routed so that fluid drain away from the
connectors.
What is the maximum spacing for supports used in 24 inches
the installation of electrical wiring in aircraft?
What type of materials are used to insulate and Install phenolic blocks, plastic liners, or rubber grommets.
protect aircraft wiring that runs through holes,
bulkheads, floors, or structural members where it
is impossible to install off- angle clamps to
maintain wiring separation?
