Day 8 Outside Work Flashcards
Why are pre-insulated crimp-type ring-tongue terminals generally preferred in aircraft wiring?
Because they provide superior mechanical strength and electrical conductivity
Which of the following is a recommended practice when stripping wire insulation longer than ¾ inch using hand-plier strippers?
Perform the stripping in two or more operations to prevent damage to the strands
Why must aluminum terminal lugs be crimped only to aluminum wire?
To ensure compatibility and prevent galvanic corrosion
When attaching terminals to wire ends, what should the tensile strength of the wire-to-terminal joint be?
It should match or exceed the tensile strength of the wire itself
What is the maximum number of terminal lugs, including a bus bar, that should be connected to a single terminal stud?
Four
Why are coaxial cables particularly vulnerable to damage, and what is one recommended precaution when handling them?
They are easily damaged by sharp bends; avoid bending them more than their allowable radius
When inspecting aircraft wiring, why is it essential to check grounding connections for power and distribution equipment?
To ensure that the electrical bonding resistance remains low and prevents interference
What is a primary concern when using pre-insulated splices in aircraft wiring?
Achieving the correct crimp depth to prevent wire damage and ensure a secure connection
What is the main purpose of sealing connectors in aircraft electrical systems?
To prevent moisture entry and corrosion, thereby ensuring long-term reliability
Why is it critical to avoid nicking or damaging the strands of wire during the stripping process, especially with aluminum wire?
Because damaged strands can significantly reduce the mechanical strength of the wire
What is a critical factor to consider when selecting a switch for a high rush-in circuit, such as one containing incandescent lamps?
The switch should be derated to handle the initial inrush current without contact burning
Which type of connector is preferred for use in areas subject to high vibration, fluids, and corrosive elements?
Environment-resistant connectors
How should connectors be installed to ensure proper drainage and prevent moisture accumulation?
Ensure the connector is mounted in a way that allows moisture to drain out of the connector
What is the recommended practice when routing wires through connectors in redundant systems?
Use separate connectors for wires that perform the same function in redundant systems
Why is it important to have spare contacts in electrical connectors for future wiring additions?
To allow for easy circuit expansion and modifications without replacing the entire connector
