18 Questions
What is a critical factor in determining the wire size for an electrical circuit?
The estimated or measured conductor temperature
What is the primary purpose of crimping in electrical cables?
To secure the wire to the connector
What is the significance of high tension cables in aircraft electrical systems?
They are used for high voltage applications
What is the purpose of wire bundling in electrical circuits?
To organize and protect the wires
What is the significance of derating in wire selection?
It accounts for the reduction in current carrying capacity due to environmental factors
What is the maximum operating temperature that electrical cables should be designed to withstand?
Depends on the specific application
What is the primary purpose of considering wire size in electric power transmission?
To minimize electrical energy converted into heat
What happens when current is drawn through an insulated conductor?
The heat generated is not so readily removed
Why is wire derating necessary when wires are installed in conduit and/or bundle?
Because the heat generated in the conductor is not so readily removed
What is the effect of a wide variation in the IR drop in the line?
Poor voltage regulation at the load
What is the purpose of reducing either current or resistance in wire size selection?
To reduce the power loss in the line
What is the range of typical wire sizes?
From number 40 to number 0000
What is the primary reason to limit the current through a conductor?
To protect the insulation from excessive heat
What is a consideration when selecting wire sizes smaller than #20?
The mechanical strength and installation handling
Why should wires smaller than size #20 be grouped with at least three other wires?
To reduce the effects of vibration and flexing
What is the relationship between the current carrying capacity of a wire and the related connector?
The wire may be capable of carrying more current than the contacts of the related connector
What is the maximum operating temperature of a wire determined by?
The type of conductor insulation being used
What should not be exceeded when operating a wire?
The current that causes a temperature steady state condition
Test your knowledge on the construction and characteristics of aircraft electrical cables and connectors, covering topics from Aviation Maintenance Technician Certification Series. Learn about electrical wiring standards and practices for avionics. Evaluate your understanding of cables and connectors in aviation maintenance.
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