118, SPO 103, SPO 143 EXAM QUESTIONS
AND ANSWERS GRADED A+ 2025/2026
Secure the fuel hose to the 4-way flat connector with a: - ANS Cable tie
Install a rubber grommet over the fuel hose and slide the 4-way flat connector into the hole in
the trailer tongue. - ANS True
Always install an ________ over the fuel hose when securing the 4-way flat connector to the
underside of the A-frame. - ANS Insulated clip
It is not necessary to heat the butt connectors and wrap with electrical tape. - ANS False
Connect the white wire of the 4-way flat connector to the _______ wire of the trailer harness. -
ANS Green
The white wire of the 4-way flat connector is always connected to the _______ on the trailer
(you may choose one or more answers). - ANS Green wires
Ground
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,The brown wire of the 4-way flat connector is always connected to the _______ on the trailer
(you may choose one or more answers). - ANS White wires
Route the 4-way flat connector over the bracket assembly so that approximately _______
extends beyond the end of the bracket assembly, then install the wire retainer. - ANS 2
It is not necessary to slide a rubber grommet over the fuel hose. - ANS False
All trailer-light wiring colors are standardized. - ANS True
It doesn't matter which bulk-wiring colors are used when repairing trailer-light wiring. -
ANS False
Connect the yellow wire of the 4-way flat connector to the left-side black wire using a: -
ANS Blue butt connector
Connect the green wire of the 4-way flat connector to the right-side black wire using a _______
butt connector. Connect the yellow wire of the 4-way flat connector to the left-side black wire
using a _______ butt connector. - ANS Blue
Trailers with the surge-brake pole-style tongue should have the new 4-way flat connector
secured in _______ places on the bracket assembly. - ANS Two
Trailers with the surge-brake pole-style tongue will need the fuel hose cut to different lengths,
depending on the trailer type. - ANS True
Always install the wire retainer over the wire harness (4-way flat connector) using cap screws
and washers. - ANS True
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, The right-side black wire and the left-side black wire are attached to the 4-way flat connector
wires, by using two _______ colored butt connectors. - ANS Blue
Connect the yellow wire of the 4-way flat connector to the: - ANS Left-side black wire
Connect the green wire of the 4-way flat connector to the: - ANS Right-side black wire
Connect the white wire of the 4-way flat connector to the: - ANS Two green wires
Connect the brown wire of the 4-way flat connector to the: - ANS Two white wires
After connecting and installing a new 4-way flat connector, the last step is to: - ANS Verify
that the lights operate properly.
Do not repair a puncture that is less than _____ away from another puncture or repair. -
ANS 6
Do not repair tire damage that occurs within _____ of the tread shoulder or on the sidewall. -
ANS 1
Tire damage that occurs within 1" of the tread shoulder can be repaired. - ANS false
What is the first step in using weather cracking tool? - ANS Place tool against the tire sidewall
No cracking on tire is acceptable - ANS False
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