ISA UTILITY SPECIALIST COMPREHENSIVE
CERTIFICATION EXAMINATION 2026 FULL
QUESTIONS AND CORRECT ANSWERS
◉ Accident Pyramid.
Answer: illustration of Herbert Heinrich principles of accident
prevention-----bottom has thousands of unsafe acts/conditions, led
to 300 close calls, 29 minor injuries & ultimately one major
fatality/injury at top
◉ Accrual Accounting.
Answer: accounting methodology that records revenues & costs
when they occur
◉ ACSR.
Answer: aluminum conductor steel reinforced
◉ Action Threshold.
Answer: point at which the level of incompatible plant species,
density, height, location, condition threatens the stated management
objectives & requires implementation of control method
,◉ Active Listening.
Answer: structured face to face communication technique that
improves performance & increases understanding btwn people
-use persons name
-paraphrase their message
◉ Acute Toxicity.
Answer: adverse effects resulting from exposure to a single dose or
exposure to multiple doses of a substance over short time frame
◉ Aerial Application.
Answer: VM application of herbicide using aircraft(helicopters/fixed
wing)
◉ Aerial LIft.
Answer: truck, logging skidder or vehicle mounted w hydraulic
boom supported bucket or semi-enclosed working platform used to
elevate workers
◉ AHAS Inhibitors.
Answer: chemical class of commonly IVM herbicides in which the
mode of action inhibits key botanical enzyme
,-acetohdroxycacid synthase(AHAS)----biosynthesis of critical amino
acids
◉ Airbrake Switch.
Answer: manually operated switch----deployed where two circuits
meet or circuit portion from an energized feeder
-not designed to auto interrupt electrical load or be used as line
protection from overload, short circuit or fault
◉ Allelopathy.
Answer: ability of some plants including certain grasses, to release
chems that suppress other plant species growing around them
◉ ALS Inhibitors.
Answer: chemical class of commonly used IVM herbicides in which
the mode of action inhibits a key enzyme
-acetolactate synthase
◉ Alternating Current(AC).
Answer: electric current that reverses its direction many times per
second at regular intervals typically used in power supplies
◉ Aluminum Conductor Steel-Reinforced Cable(ACSR).
, Answer: energize cable constructed from aluminum wire stranded
around a steel core
-lightweight, low cost
-tendency to stretch when heated----high electrical load or high
temp
-to minimize stretch/add strength----steel core is added
◉ Ampere(amp, A).
Answer: measure of current
- 1 A = charge carried by 6.25 x 10^18 electrons moving past a given
point in one second
◉ -ANSI A300(Part 7).
Answer: American National Standard for Tree Care Operations----
Tree/Shrub/Wood Plant Maintenance
-IVM---utility ROW
◉ ANSI Z133.
Answer: ANSI Arboricultural Operations----Safety Reqs
-safety standard of practice for tree care
◉ Approach Distance.
CERTIFICATION EXAMINATION 2026 FULL
QUESTIONS AND CORRECT ANSWERS
◉ Accident Pyramid.
Answer: illustration of Herbert Heinrich principles of accident
prevention-----bottom has thousands of unsafe acts/conditions, led
to 300 close calls, 29 minor injuries & ultimately one major
fatality/injury at top
◉ Accrual Accounting.
Answer: accounting methodology that records revenues & costs
when they occur
◉ ACSR.
Answer: aluminum conductor steel reinforced
◉ Action Threshold.
Answer: point at which the level of incompatible plant species,
density, height, location, condition threatens the stated management
objectives & requires implementation of control method
,◉ Active Listening.
Answer: structured face to face communication technique that
improves performance & increases understanding btwn people
-use persons name
-paraphrase their message
◉ Acute Toxicity.
Answer: adverse effects resulting from exposure to a single dose or
exposure to multiple doses of a substance over short time frame
◉ Aerial Application.
Answer: VM application of herbicide using aircraft(helicopters/fixed
wing)
◉ Aerial LIft.
Answer: truck, logging skidder or vehicle mounted w hydraulic
boom supported bucket or semi-enclosed working platform used to
elevate workers
◉ AHAS Inhibitors.
Answer: chemical class of commonly IVM herbicides in which the
mode of action inhibits key botanical enzyme
,-acetohdroxycacid synthase(AHAS)----biosynthesis of critical amino
acids
◉ Airbrake Switch.
Answer: manually operated switch----deployed where two circuits
meet or circuit portion from an energized feeder
-not designed to auto interrupt electrical load or be used as line
protection from overload, short circuit or fault
◉ Allelopathy.
Answer: ability of some plants including certain grasses, to release
chems that suppress other plant species growing around them
◉ ALS Inhibitors.
Answer: chemical class of commonly used IVM herbicides in which
the mode of action inhibits a key enzyme
-acetolactate synthase
◉ Alternating Current(AC).
Answer: electric current that reverses its direction many times per
second at regular intervals typically used in power supplies
◉ Aluminum Conductor Steel-Reinforced Cable(ACSR).
, Answer: energize cable constructed from aluminum wire stranded
around a steel core
-lightweight, low cost
-tendency to stretch when heated----high electrical load or high
temp
-to minimize stretch/add strength----steel core is added
◉ Ampere(amp, A).
Answer: measure of current
- 1 A = charge carried by 6.25 x 10^18 electrons moving past a given
point in one second
◉ -ANSI A300(Part 7).
Answer: American National Standard for Tree Care Operations----
Tree/Shrub/Wood Plant Maintenance
-IVM---utility ROW
◉ ANSI Z133.
Answer: ANSI Arboricultural Operations----Safety Reqs
-safety standard of practice for tree care
◉ Approach Distance.
