ISA Utility Specialist (Ch. 3: Utility Pruning) Exam
Questions & Answers Already Passed
Utility pruning is the pruning of trees located in the vicinity of power lines for the
purpose of __________ __________ __________. - Correct ensuring reliable
service
Which type of cuts are less unacceptab...
ISA Utility Specialist (Ch. 3: Utility Pruning) Exam
Questions & Answers Already Passed
Utility pruning is the pruning of trees located in the vicinity of power lines for the
purpose of __________ __________ __________. - Correct ✓✓ensuring reliable
service
Which type of cuts are less unacceptable? - Correct ✓✓internodal cuts
(e.g. topping)
Which type of cuts are more acceptable? - Correct ✓✓nodal cuts
(e.g. drop-crotch, thinning)
Where should the final cut be made for proper utility pruning? - Correct ✓✓just
outside of the branch bark ridge and the branch collar
Flush cuts damage which tissues? - Correct ✓✓the trunk
Why is utility pruning done? - Correct ✓✓to maintain safety and rights-of-way
Which type of pruning encourages the growth of branches away from the wires? -
Correct ✓✓directional pruning
What is the maximum amount of foliage that should be removed in one growing
season? - Correct ✓✓25%
, (this is according to ANSI A300)
When is it acceptable to deviate from the pruning standards? - Correct ✓✓during
storm restoration
In the U.S., pruning should be conducted according to __________ __________. -
Correct ✓✓ANSI A300
Utility pruning removes the leaves and reduces a tree's __________ growth, but
remaining __________ may grow more. - Correct ✓✓overall;
shoots
Utility pruning is mainly conducted to provide __________ from power lines. -
Correct ✓✓clearance
Utility pruning should use __________ & __________ pruning principals -
Correct ✓✓natural & targeted
Crown reduction removes main branches to lower limbs no less than __________
the diameter of the original limb. - Correct ✓✓1/3
When pruning near conductors, overhanging branches can be left in place,
depending on __________ __________ & __________ __________. - Correct
✓✓tree species & climate conditions
A pruning cycle should be based on tree __________ __________. - Correct
✓✓growth rates
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