1 | Page
SLTC Final review Questions and Correct
Answers
What is the pole ground made out of and what size of wire? Ans:
is typically #4 or #6 copper
What is required with some companies with working on multiple
pole projects? Ans: Bracket grounding
The pulling and tensioning equipment used should always be
what? Ans: Grounded
What do you need to do before each job? Ans: Have a job briefing
What does OHSA not require? Ans: They don't require you to
ground your trucks
On a capacitor, OSHA requires what? Ans: They require you to
wait 5 minutes after de-energizing the capacitor before short-
circuiting and grounding the terminals to bleed off any charge
Personal protective grounding conductors for underground lines
and equipment must never be smaller than what? Ans: #2 AWG
Copper
What are Portable feed-through buching used for? Ans: They are
used to isolate, test, and ground a circuit
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, 2 | Page
What is a grounding eblow rated for? Ans: They are fully rated for
fault current
The insulated protective cap is used to cover what? Ans: Dead-
front equipment
What are Vectors? Ans: They are lines that have both magnitude
and direction
What is a vector used for? Ans: They are used for graphical
representation of the current flow through the windings of a
transformer
What are vectors referred to? Ans: Phasors
What are the voltages for a WYE system? Ans: 120/208 or
277/480
What are the voltages for a Delta system? Ans: 120/240 or
240/480
What needs help and each transformer connects to two phases and
the adjacent transformer? Ans: Delta Banks
What stands alone and each transformer connects to the only
phase? Ans: WYE Banks
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, 3 | Page
What can a WYE bank not be? Ans: It cant be an open bank only a
closed bank
What does OSHA require you to do before working on energized
conductors? Ans: Test with a Multi-range volt testers
How many times per mile a line should be grounded? Ans: 4 times
per mile
Doubling the length of the ground rod into the earth will typically
reduce the ground resistance by _______ while doubling its
diameter only reduces resistance by ______ Ans: 40% and 10%
What are the four important steps to properly grounding lines
Ans: 1.) Identify/ Job Breifing
2.) Isolate
3.) Test
4.) Ground the section of the line has been isolated and tested
What does OSHA require before each job? Ans: A Job Briefing
What should you put on the lines when you are down somewhere
else fixing something Ans: tags or blocking devices
What are the two most commonly used clamps for grounding?
Ans: C-Clamp or Snap on (Duckbill) clamps
© 2025 All rights reserved
SLTC Final review Questions and Correct
Answers
What is the pole ground made out of and what size of wire? Ans:
is typically #4 or #6 copper
What is required with some companies with working on multiple
pole projects? Ans: Bracket grounding
The pulling and tensioning equipment used should always be
what? Ans: Grounded
What do you need to do before each job? Ans: Have a job briefing
What does OHSA not require? Ans: They don't require you to
ground your trucks
On a capacitor, OSHA requires what? Ans: They require you to
wait 5 minutes after de-energizing the capacitor before short-
circuiting and grounding the terminals to bleed off any charge
Personal protective grounding conductors for underground lines
and equipment must never be smaller than what? Ans: #2 AWG
Copper
What are Portable feed-through buching used for? Ans: They are
used to isolate, test, and ground a circuit
© 2025 All rights reserved
, 2 | Page
What is a grounding eblow rated for? Ans: They are fully rated for
fault current
The insulated protective cap is used to cover what? Ans: Dead-
front equipment
What are Vectors? Ans: They are lines that have both magnitude
and direction
What is a vector used for? Ans: They are used for graphical
representation of the current flow through the windings of a
transformer
What are vectors referred to? Ans: Phasors
What are the voltages for a WYE system? Ans: 120/208 or
277/480
What are the voltages for a Delta system? Ans: 120/240 or
240/480
What needs help and each transformer connects to two phases and
the adjacent transformer? Ans: Delta Banks
What stands alone and each transformer connects to the only
phase? Ans: WYE Banks
© 2025 All rights reserved
, 3 | Page
What can a WYE bank not be? Ans: It cant be an open bank only a
closed bank
What does OSHA require you to do before working on energized
conductors? Ans: Test with a Multi-range volt testers
How many times per mile a line should be grounded? Ans: 4 times
per mile
Doubling the length of the ground rod into the earth will typically
reduce the ground resistance by _______ while doubling its
diameter only reduces resistance by ______ Ans: 40% and 10%
What are the four important steps to properly grounding lines
Ans: 1.) Identify/ Job Breifing
2.) Isolate
3.) Test
4.) Ground the section of the line has been isolated and tested
What does OSHA require before each job? Ans: A Job Briefing
What should you put on the lines when you are down somewhere
else fixing something Ans: tags or blocking devices
What are the two most commonly used clamps for grounding?
Ans: C-Clamp or Snap on (Duckbill) clamps
© 2025 All rights reserved
