Splice And Install Electrical Wire

Question 1

What two things must you take into consideration when selecting the wire size to use in an aircraft electrical system installation?

Answer 1

The current carrying capability of the wire and the voltage drop caused by the current flowing through the wire

Question 2

What is the maximum number of wires that should be connected to any single stud in a terminal strip?

Answer 2

Four

Question 3

How is a wire bundle protected from chafing where the bundle goes through a hole in a fuselage frame or bulkhead?

Answer 3

The edges of the hole are covered with a flexible grommet, and the bundle is secured to the structure with a cushioned clamp

Question 4

What kind of clamp is used to secure a wire bundle to the aircraft structure?

Answer 4

A cushioned clamp

Question 5

Why are solderless splices usually better than soldered splices in the wiring of an aircraft electrical system?

Answer 5

Solder joints are usually stiff and vibration can harden the wire and cause it to break. Solderless splices are designed to keep the joint flexiable so vibration cannot cause the wire to break

Question 6

What is the main disadvantage of aluminum wire over copper wire for use in an aircraft electrical system?

Answer 6

Aluminum wire is more brittle than copper. It is more subject to breakage when it is nicked or when it is subjected to vibration

Question 7

What size aluminum wire would be proper to replace a piece of four-gage copper wire?

Answer 7

Two-gage. When you substitute aluminum wire for copper wire, use a wire that is two gage numbers large

Question 8

What is the smallest size aluminum wire that is approved for use in aircraft electrical systems?

Answer 8

Six-gage

Question 9

What color insulator on a preinsulated solderless connector indicates that the connector is proper for a 10-gage wire?

Answer 9

Yellow