ISA UTILITY SPECIALIST (CH. 5: ELECTRICAL KNOWLEDGE) |
QUESTIONS AND ANSWERS | 2026 UPDATE | WITH COMPLETE
SOLUTION
What is a volt? Answer - a unit of electrical force
Electrical resistance determines how much __________ is required to move
electricity along a conductor and is measured in __________. Answer - energy;
ohms
A conductor carrying more than __________ volts would be considered a NERC
line. Answer - 200,000
2 examples of protective equipment: Answer - circuit breakers
lightning receptors
An energized wire or conductor in a circuit is also known as a __________.
Answer - phase
True or False?
Guy wires are intended to help support poles but may become unintentionally
energized. Answer - true
, A __________ is similar to a fuse or cutout, but it resets after a predetermined
time period. Answer - re-closer
Minimum working distances for qualified line-clearance arborists are specified
in the __________ safety standard. Answer - ANSI Z133
When installing underground conductors, __________ should be used in tree
root protection zones. Answer - tunneling
Distribution transformers typically __________ primary circuit voltage for the
end user. Answer - reduce
Amp: Answer - the measure of electrical current
Service lines and secondary distribution lines usually carry voltage between
__________-__________ volts. Answer - 120-240
When a tree contacts one electrical conductor, it may cause a __________-to-
__________ fault. Answer - phase-ground fault
The minimum approach distance for non-qualified line clearance personnel
from energized conductors 50 kV and less: Answer - 10 feet
The condition that allows electricity to flow from one object to another is
called: Answer - potential
What is a Watt? Answer - a measure of electrical power
QUESTIONS AND ANSWERS | 2026 UPDATE | WITH COMPLETE
SOLUTION
What is a volt? Answer - a unit of electrical force
Electrical resistance determines how much __________ is required to move
electricity along a conductor and is measured in __________. Answer - energy;
ohms
A conductor carrying more than __________ volts would be considered a NERC
line. Answer - 200,000
2 examples of protective equipment: Answer - circuit breakers
lightning receptors
An energized wire or conductor in a circuit is also known as a __________.
Answer - phase
True or False?
Guy wires are intended to help support poles but may become unintentionally
energized. Answer - true
, A __________ is similar to a fuse or cutout, but it resets after a predetermined
time period. Answer - re-closer
Minimum working distances for qualified line-clearance arborists are specified
in the __________ safety standard. Answer - ANSI Z133
When installing underground conductors, __________ should be used in tree
root protection zones. Answer - tunneling
Distribution transformers typically __________ primary circuit voltage for the
end user. Answer - reduce
Amp: Answer - the measure of electrical current
Service lines and secondary distribution lines usually carry voltage between
__________-__________ volts. Answer - 120-240
When a tree contacts one electrical conductor, it may cause a __________-to-
__________ fault. Answer - phase-ground fault
The minimum approach distance for non-qualified line clearance personnel
from energized conductors 50 kV and less: Answer - 10 feet
The condition that allows electricity to flow from one object to another is
called: Answer - potential
What is a Watt? Answer - a measure of electrical power
