SUSTAINABLE DEVELOPMENT STUDY GUIDE
2026 COMPREHENSIVE QUESTIONS AND
STEP BY STEP SOLUTIONS
◉ What specific charging system component is evaluated when you
perform an AC leakage test?!
Stator
Field windings
Diode bridge
Voltage regulator
Answer: Diode bridge
◉ When using a DMM to measure voltage, what would happen if you
placed the negative terminal on the more positive section of a
circuit?!
Display reading would be preceded by a MINUS symbol
Circuit dead short through the DMM
DMM fuse failure
DMM circuitboard failure
Answer: Display reading would be preceded by a MINUS symbol
,◉ When measuring circuit resistance with a DMM, what will the
ohmmeter display when you place the test leads across an open
circuit?!
Low resistance
High resistance
OL
Zero resistance
Answer: OL
◉ If you have accessed an OEM (original equipment manufacturer)
data hub, which of the following must be true?!
You are connected to the truck data bus
You are connected to a data bus MID
You are viewing FMIs
You are on-line
Answer: You are on-line
◉ In a troubleshooting diagnostic tree, what is at the root of the
tree?!
Troubleshooting paths
The MID
Troubleshooting routes
, The problem
Answer: The problem
◉ When assembling Deutsch connectors, how much insulation
should be stripped away from each wire before crimping?!
2mm
6mm
10mm
15mm
Answer: 6mm
◉ When adjusting truck body panels, how should a door be aligned
to the front fender?!
Slightly inboard from the fender
Slightly outward from the fender
Slightly higher than the fender
Slightly lower than the fender
Answer: Slightly inboard from the fender
◉ In the 7-way tractor trailer electrical cord, what wire colour is
designated for the stop lights?!
Blue