1|Page
JOURNEYMAN LINEMAN 2026 NEWEST EXAM AND
PRACTICE EXAM NEWEST ACTUAL EXAM
COMPLETE 200 QUESTIONS AND 100%CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
||ALREADY GRADED A+
What needs to be checked before paralleling two
transformers? - ANSWER-The Impedance needs to be +
or - 10%
Where should tap changers be set at _?_ - ANSWER-at
100% For normal operation
What is the displacement of a WYE-Delta or a Delta-
WYE? - ANSWER-30° or 210°
,2|Page
What is the displacement of a WYE-WYE or a Delta-Delta
bank? - ANSWER-0° or 180°
What does current determine? - ANSWER-the magnetic
strength
What is the smallest size of wire allowed on grounding
equipment? - ANSWER-#2 Copper
What does a PT sense? - ANSWER-Voltage
What does a CT sense? - ANSWER-Amps
,3|Page
What is the worst things for a transformer? - ANSWER-
Heat, lightening.
Where are the tap changers located? - ANSWER-On the
primary coil
How does the load split on delta transformer bank? -
ANSWER-Outside transformers carry 1/3 of the single
phase load, center Transformer carries 2/3's.
Each transformer carries 1/3 of the 3-Phase load. (If there
is a larger Xfmr it can only match smaller Xfmr in 3-phase
capacity.)
, 4|Page
On a single bushing transformer (CSP) where does the
other end of the primary coil go? - ANSWER-To the tank
ground
What is an internal fuse? - ANSWER-It is the same thing
as a cutout fuse just inside the H1 bushing.
What's the difference between "240/120" and "120/240" on
a transformer name plate? - ANSWER-240/120 is two
separate coils
120/240 is one coil
Color of service lines on vehicles? - ANSWER-Red-
Emergency
JOURNEYMAN LINEMAN 2026 NEWEST EXAM AND
PRACTICE EXAM NEWEST ACTUAL EXAM
COMPLETE 200 QUESTIONS AND 100%CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
||ALREADY GRADED A+
What needs to be checked before paralleling two
transformers? - ANSWER-The Impedance needs to be +
or - 10%
Where should tap changers be set at _?_ - ANSWER-at
100% For normal operation
What is the displacement of a WYE-Delta or a Delta-
WYE? - ANSWER-30° or 210°
,2|Page
What is the displacement of a WYE-WYE or a Delta-Delta
bank? - ANSWER-0° or 180°
What does current determine? - ANSWER-the magnetic
strength
What is the smallest size of wire allowed on grounding
equipment? - ANSWER-#2 Copper
What does a PT sense? - ANSWER-Voltage
What does a CT sense? - ANSWER-Amps
,3|Page
What is the worst things for a transformer? - ANSWER-
Heat, lightening.
Where are the tap changers located? - ANSWER-On the
primary coil
How does the load split on delta transformer bank? -
ANSWER-Outside transformers carry 1/3 of the single
phase load, center Transformer carries 2/3's.
Each transformer carries 1/3 of the 3-Phase load. (If there
is a larger Xfmr it can only match smaller Xfmr in 3-phase
capacity.)
, 4|Page
On a single bushing transformer (CSP) where does the
other end of the primary coil go? - ANSWER-To the tank
ground
What is an internal fuse? - ANSWER-It is the same thing
as a cutout fuse just inside the H1 bushing.
What's the difference between "240/120" and "120/240" on
a transformer name plate? - ANSWER-240/120 is two
separate coils
120/240 is one coil
Color of service lines on vehicles? - ANSWER-Red-
Emergency
