ISA Arborist Study Guide Sample test
questions with correct answers
Bark, |phloem, |cambium, |xylem |- |CORRECT |ANSWER✔✔-When |cutting |through |a |tree |with |a |
chain |saw |or |drilling |into |a |tree, |you |would |pass |through |(in |order)
Growth |may |be |stimulated |in |lateral |buds |- |CORRECT |ANSWER✔✔-If |the |terminal |bud |is |
removed |in |pruning:
The |growth |rings |of |a |tree: |- |CORRECT |ANSWER✔✔-Visible |because |of |the |rapid |growth |rate |
of |earlywood |relative |to |latewood, |can |be |counted |on |to |approximate |trees |age, |can |give |
information |about |growth |conditions |in |previous |years.
Cambium |- |CORRECT |ANSWER✔✔-layer |of |cells |is |responsible |for |outward |growth |and |
increased |girth |of |tree.
Mycorrhizae |are: |- |CORRECT |ANSWER✔✔-A |symbiotic |relationship |between |fungi |and |roots.
Douglas-fir |(Pseudotsuga |menziesii) |differs |from |balsam |fir |(Abies |balsamea) |in |that: |- |
CORRECT |ANSWER✔✔-They |are |not |in |the |same |genus.
Opposite |leaf |arrangement |is: |- |CORRECT |ANSWER✔✔-When |two |leaves |and/or |buds |are |
located |at |the |same |node |on |a |twig.
Quercus |rubra |- |CORRECT |ANSWER✔✔-Scientific |name |of |Red |Oak.
, Quercus |(Oak) |- |CORRECT |ANSWER✔✔-This |genus |of |tree |usually |does |not |have |an |opposite |
leaf |arrangement.
Pines |- |CORRECT |ANSWER✔✔-These |conifers |have |needles |in |bundles.
Available |oxygen |and |water |- |CORRECT |ANSWER✔✔-The |primary |factor |in |controlling |the |
depth, |spread, |and |distribution |of |tree |roots |in |the |soil |is/are:
The |most |fibrous |and |absorptive |portion |of |a |tree's |root |system |is |found |in? |- |CORRECT |
ANSWER✔✔-Are |in |the |upper |6 |inches |of |soil.
Water |will |drain |very |slowly |out |of |the |planting |hole. |- |CORRECT |ANSWER✔✔-If |a |planting |
hole |in |a |clay |soil |site |is |backfilled |with |sandy |soil.
When |soil |is |compacted: |- |CORRECT |ANSWER✔✔-Total |pore |space |and |the |percentage |of |
macropores |are |reduced.
A |characteristic |of |sandy |soils |in |arid |regions |is: |- |CORRECT |ANSWER✔✔-They |tend |to |become
|alkaline, |and |salts |build |up |due |to |the |lack |of |heavy |rainfall.
When |irrigating |trees: |- |CORRECT |ANSWER✔✔-Infrequent, |deep |soakings |are |preferable |to |
frequent, |shallow |waterings.
Sandy |soils: |- |CORRECT |ANSWER✔✔-Have |a |higher |infiltration |rate |than |clay |soils.
A |soil |is |at |field |capacity |when: |- |CORRECT |ANSWER✔✔-Gravitational |water |has |drained |away.
questions with correct answers
Bark, |phloem, |cambium, |xylem |- |CORRECT |ANSWER✔✔-When |cutting |through |a |tree |with |a |
chain |saw |or |drilling |into |a |tree, |you |would |pass |through |(in |order)
Growth |may |be |stimulated |in |lateral |buds |- |CORRECT |ANSWER✔✔-If |the |terminal |bud |is |
removed |in |pruning:
The |growth |rings |of |a |tree: |- |CORRECT |ANSWER✔✔-Visible |because |of |the |rapid |growth |rate |
of |earlywood |relative |to |latewood, |can |be |counted |on |to |approximate |trees |age, |can |give |
information |about |growth |conditions |in |previous |years.
Cambium |- |CORRECT |ANSWER✔✔-layer |of |cells |is |responsible |for |outward |growth |and |
increased |girth |of |tree.
Mycorrhizae |are: |- |CORRECT |ANSWER✔✔-A |symbiotic |relationship |between |fungi |and |roots.
Douglas-fir |(Pseudotsuga |menziesii) |differs |from |balsam |fir |(Abies |balsamea) |in |that: |- |
CORRECT |ANSWER✔✔-They |are |not |in |the |same |genus.
Opposite |leaf |arrangement |is: |- |CORRECT |ANSWER✔✔-When |two |leaves |and/or |buds |are |
located |at |the |same |node |on |a |twig.
Quercus |rubra |- |CORRECT |ANSWER✔✔-Scientific |name |of |Red |Oak.
, Quercus |(Oak) |- |CORRECT |ANSWER✔✔-This |genus |of |tree |usually |does |not |have |an |opposite |
leaf |arrangement.
Pines |- |CORRECT |ANSWER✔✔-These |conifers |have |needles |in |bundles.
Available |oxygen |and |water |- |CORRECT |ANSWER✔✔-The |primary |factor |in |controlling |the |
depth, |spread, |and |distribution |of |tree |roots |in |the |soil |is/are:
The |most |fibrous |and |absorptive |portion |of |a |tree's |root |system |is |found |in? |- |CORRECT |
ANSWER✔✔-Are |in |the |upper |6 |inches |of |soil.
Water |will |drain |very |slowly |out |of |the |planting |hole. |- |CORRECT |ANSWER✔✔-If |a |planting |
hole |in |a |clay |soil |site |is |backfilled |with |sandy |soil.
When |soil |is |compacted: |- |CORRECT |ANSWER✔✔-Total |pore |space |and |the |percentage |of |
macropores |are |reduced.
A |characteristic |of |sandy |soils |in |arid |regions |is: |- |CORRECT |ANSWER✔✔-They |tend |to |become
|alkaline, |and |salts |build |up |due |to |the |lack |of |heavy |rainfall.
When |irrigating |trees: |- |CORRECT |ANSWER✔✔-Infrequent, |deep |soakings |are |preferable |to |
frequent, |shallow |waterings.
Sandy |soils: |- |CORRECT |ANSWER✔✔-Have |a |higher |infiltration |rate |than |clay |soils.
A |soil |is |at |field |capacity |when: |- |CORRECT |ANSWER✔✔-Gravitational |water |has |drained |away.
