ISA UTILITY ARBORIST MASTER STUDY SET 2026 EXAM PREP STUDY GUIDE ALL SECTIONS Q&A 100% CORRECT

ISA UTILITY ARBORIST MASTER STUDY SET
2026 EXAM PREP STUDY GUIDE ALL
SECTIONS Q&A 100% CORRECT

⩥ Which type of cuts are less unacceptable? Answer: internodal cuts
(e.g. topping)


⩥ Which type of cuts are more acceptable? Answer: nodal cuts
(e.g. drop-crotch, thinning)


⩥ Where should the final cut be made for proper utility pruning?
Answer: just outside of the branch bark ridge and the branch collar


⩥ Flush cuts damage which tissues? Answer: the trunk


⩥ Why is utility pruning done? Answer: to maintain safety and rights-of-
way


⩥ Which type of pruning encourages the growth of branches away from
the wires? Answer: directional pruning

, ⩥ What is the maximum amount of foliage that should be removed in
one growing season? Answer: 25%
(this is according to ANSI A300)


⩥ When is it acceptable to deviate from the pruning standards? Answer:
during storm restoration


⩥ In the U.S., pruning should be conducted according to __________
__________. Answer: ANSI A300


⩥ Utility pruning removes the leaves and reduces a tree's __________
growth, but remaining __________ may grow more. Answer: overall;
shoots


⩥ Utility pruning is mainly conducted to provide __________ from
power lines. Answer: clearance


⩥ Utility pruning should use __________ & __________ pruning
principals Answer: natural & targeted


⩥ Crown reduction removes main branches to lower limbs no less than
__________ the diameter of the original limb. Answer: 1/3