Jeppensen Chapter 7 Section C Flashcards
The insulation on aircraft wire is designed to withstand __________ volts.
600
__________-gauge wire is the smallest size aluminum wire recommended for use in aircraft electrical circuits.
eight
The __________ __________ gauge is used to indicate the size of electrical wire.
American Wire
Fill in the allowable voltage drop for each of these system conditions by referring to the
chart in figure 7-84.
A. 15-amp intermittent load with a 25-foot wire length in a 28-volt system: __________ volt(s).
B. 5-amp continuous load with a 10-foot wire length in a 14-volt system: __________ volt{s).
C. 15-amp intermittent load with a wire length of 60 feet in a 115-volt system: __________ volt(s).
D. 20-amp continuous load with a 40-foot wire length in a 200-volt system: __________ volt(s).
A. 2 volts,
B. .5 volts
C. 8 volts,
D. 7 volts
Using the electrical wire chart in figure 7-85, determine what gauge wire would be best suited for each of these conditions:
A. A continuous load in a 14-volt system needing 40 feet of wire to carry 30 amps. The wire is to be routed in a bundle. __________-gauge
B. An intermittent load of 200 amps in a 28-volt system. The wire is 12 feet long and routed in free air. __________-gauge
C. A continuous load of 20 amps in a 115-volt system. The wire is to be routed in a bundle and is 120 feet long. __________-gauge
D. An intermittent load of 300 amps in a 14-volt system. The wire is 6 feet long and is routed in free air. __________-gauge
A. 4,
B. 2,
C. 10,
D. 2/0
Wires must have an identification mark every __________ to __________ inches.
12
15
When electrical wires are routed parallel to lines carrying oxygen or any type of liquid, the wiring should be at least __________ inches __________ the fluid lines.
6
above
When electrical wiring is run through conduit, the conduit should be approximately __________ % larger than the diameter of the wire bundle.
25
Encasing a wire in a braided metal jacket is called __________ the wire.
shielding
What color insulated terminal would be used on each of these wire sizes:
A. 20-guage ____________________
B. 10-guage ____________________
C. 14-guage ____________________
A. Red,
B. Yellow,
C. Blue
The strength of a properly crimped wire terminal will be __________ the strength of the wire.
equal to
No more than __________ wire terminals may be connected to a single stud on a terminal strip.
four
Bonding jumpers should have a resistance of no more than __________ ohms.
3 milliohms
A __________ cable consists of a central conductor surrounded by an insulator and a second conductor.
co-axial
The __________ connector is probably the most widely used terminal on coaxial cable attached to aircraft radio antennas.
BNC
