ISA Utility Specialist Exam – Complete Practice Questions With Correct Detailed Answers
Accident - (answer)discredited term for unplanned, undesirable event that could result in unintentional
injury/property damage attributed to fate/bad luck
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
,ISA Utility Specialist Exam – Complete Practice Questions With Correct Detailed Answers
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
,ISA Utility Specialist Exam – Complete Practice Questions With Correct Detailed Answers
-safety standard of practice for tree care
Approach Distance - (answer)minimum distance that must be kept btwn conductors/energized
equipment & qualified line clearance personnel & non-qualified & bodies/tools
-approach distance vary w qualifications of personnel & voltages
Automatic Line Recloser - (answer)circuit breaker equipped w mechanism that auto close the breaker
after it has been opened due to a. fault
-designed to reset quickly to give the cause of a fault opp to clear
-may immediately recharge the circuit several times at adjustable time delay----2/3 operations within
seconds before they open permanently
Auxin - (answer)plant growth regulator or substance that promotes/influences the growth &
development of plants
-produced at sites where cells are dividing primarily in the shoot tips
-auxin like compounds may be produced synthetically
Auxin Transport Inhibitors - (answer)class of selective herbicides that disrupt auxin transport
-auxin transport obstruction causes unnatural concentration of auxin in meristematic shoots & roots,
disturbing the auxin tolerances req for normal plant growth
Back Feed - (answer)electric flow in an unintended direction thru a process whereby de-energized lines
become energized from an external source----home generator
Bargaining Unit - (answer)group of workers rep by a union local
Basal Application - (answer)herbicide application made at the bottom 12 in of stem & root collar with an
herbicide in an oil carrier
Behavior-Based - (answer)theory of industrial accident prevention pioneered by Herbert Heinrich that
considers the overwhelming majority of incidents to be caused by unsafe acts
, ISA Utility Specialist Exam – Complete Practice Questions With Correct Detailed Answers
Biological Methods - (answer)management of vegetation by establishment & control of compatible
stable plant communities using plant competition, allelopathy, animals, insects, pathogens
-cover-type conversion is a type of biological control
Border Zone - (answer)section of a transmission/pipeline ROW that extends from wire/pipe zone to the
ROW edge
-managed to promote a low growing plant community of forms, tall shrubs & low growing trees below a
specified height(25 ft)
Branch Bark Ridge - (answer)raised strip of bark at the top of a branch union where the growth &
expansion of trunk + parent stem & adjoining branch push the bark into the ridge
Branch Collar - (answer)area where a subdominant branch joins another branch or trunk that is created
by overlapping vascular tissue from both the branch & trunk
-typically enlarged at the base of the branch
Branch Removal Cut - (answer)pruning cut the removes the smaller of two branches at a union or parent
stem, w/o cutting into the branch bark ridge or branch collar or leaving stub
Branch Union - (answer)point where a branch originates from the trunk or another branch
Brand - (answer)name/service/trademark/color or attribute that distinguishes a prod or service from
competitors
Brush Cutter - (answer)machine used to remove & grind saplings, small trees, incompatible vegetation
Budget - (answer)means to justify the allocation of resources, set priorities & make decisions regarding
what can/can't be accomplished
Bus Work - (answer)rigid conductor----usually rectangular or hollow tube design
Accident - (answer)discredited term for unplanned, undesirable event that could result in unintentional
injury/property damage attributed to fate/bad luck
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
,ISA Utility Specialist Exam – Complete Practice Questions With Correct Detailed Answers
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
,ISA Utility Specialist Exam – Complete Practice Questions With Correct Detailed Answers
-safety standard of practice for tree care
Approach Distance - (answer)minimum distance that must be kept btwn conductors/energized
equipment & qualified line clearance personnel & non-qualified & bodies/tools
-approach distance vary w qualifications of personnel & voltages
Automatic Line Recloser - (answer)circuit breaker equipped w mechanism that auto close the breaker
after it has been opened due to a. fault
-designed to reset quickly to give the cause of a fault opp to clear
-may immediately recharge the circuit several times at adjustable time delay----2/3 operations within
seconds before they open permanently
Auxin - (answer)plant growth regulator or substance that promotes/influences the growth &
development of plants
-produced at sites where cells are dividing primarily in the shoot tips
-auxin like compounds may be produced synthetically
Auxin Transport Inhibitors - (answer)class of selective herbicides that disrupt auxin transport
-auxin transport obstruction causes unnatural concentration of auxin in meristematic shoots & roots,
disturbing the auxin tolerances req for normal plant growth
Back Feed - (answer)electric flow in an unintended direction thru a process whereby de-energized lines
become energized from an external source----home generator
Bargaining Unit - (answer)group of workers rep by a union local
Basal Application - (answer)herbicide application made at the bottom 12 in of stem & root collar with an
herbicide in an oil carrier
Behavior-Based - (answer)theory of industrial accident prevention pioneered by Herbert Heinrich that
considers the overwhelming majority of incidents to be caused by unsafe acts
, ISA Utility Specialist Exam – Complete Practice Questions With Correct Detailed Answers
Biological Methods - (answer)management of vegetation by establishment & control of compatible
stable plant communities using plant competition, allelopathy, animals, insects, pathogens
-cover-type conversion is a type of biological control
Border Zone - (answer)section of a transmission/pipeline ROW that extends from wire/pipe zone to the
ROW edge
-managed to promote a low growing plant community of forms, tall shrubs & low growing trees below a
specified height(25 ft)
Branch Bark Ridge - (answer)raised strip of bark at the top of a branch union where the growth &
expansion of trunk + parent stem & adjoining branch push the bark into the ridge
Branch Collar - (answer)area where a subdominant branch joins another branch or trunk that is created
by overlapping vascular tissue from both the branch & trunk
-typically enlarged at the base of the branch
Branch Removal Cut - (answer)pruning cut the removes the smaller of two branches at a union or parent
stem, w/o cutting into the branch bark ridge or branch collar or leaving stub
Branch Union - (answer)point where a branch originates from the trunk or another branch
Brand - (answer)name/service/trademark/color or attribute that distinguishes a prod or service from
competitors
Brush Cutter - (answer)machine used to remove & grind saplings, small trees, incompatible vegetation
Budget - (answer)means to justify the allocation of resources, set priorities & make decisions regarding
what can/can't be accomplished
Bus Work - (answer)rigid conductor----usually rectangular or hollow tube design
