ISA Arborist Certification Practice Exam Questions and Answers (Verified Answers by Expert) 2024
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Course
ISA Arborist Certification
Institution
ISA Arborist Certification
Field capacity is achieved after the draining of which of the following?
(A) Gravitational water
(B) Capillary water
(C) Micropore water
(D) Compacted drainage - Answer- A
Chlorophyll - Answer- Makes the color or the leaves green so photosynthesis can take place
Transpiration - Answer- l...
ISA Arborist Certification Practice Exam Questions and
Answers (Verified Answers by Expert) 2024
The ideal soil ratio for solids to pore space is:
(A) 20:80 (B) 35:65 (C) 40:60 (D) 50:50 - Answer- D
What is the correct scientific name for the oak tree genus?
(A) Quercus (B) Pyrus (C) Larix (D) Acer - Answer- A
Which of the following is not one of the five major categories of soil horizons?
(A) O (B) E (C) N (D) B - Answer- C
Loam is least composed of what soil classification?
(A) Sand(B) Silt(C) Clay(D) Loam is composed of all soils evenly - Answer- C
What is the difference in magnitude of acidity between a PH level reading of 4 vs. a PH reading of 7?
(A) 1(B) 3(C) 100 (D) 1000 - Answer- D
What is not a detrimental impact on tree growth from compaction?
(A) Restricted root growth
(B) Reduction of water availability
(C) Increasing organic material
(D) Restricting air movement - Answer- C
Field capacity is achieved after the draining of which of the following?
(A) Gravitational water
(B) Capillary water
(C) Micropore water
(D) Compacted drainage - Answer- A
,Chlorophyll - Answer- Makes the color or the leaves green so photosynthesis can take place
Transpiration - Answer- loss of water vapor from leaves
Bark - Answer- protects branches & trunk of tree from injury
Excurrent Growth - Answer- Orientation of growth in external cell
M.A.D.HORSE - Answer- Opposite leaf arrangement
MAPLE
ASH
DOGWOOD
HORSECHESTNUT
pH - Answer- Measure of acidity or alkaline from 0 to 14
<7 acidic 7> Alkaline
7 Neutral
What best defines the permanent wilting point soil moisture condition?
(A) Water is present in macro and micropores
(B) The condition present immediately after the removal of gravitational water
(C) Water is held by soil but unavailable to plants such that they can't recover
(D) No water present in soil - Answer- C
What soil below most likely has the lowest infiltration rate?
(A) Loose sand
(B) Compacted sand
(C) Loose clay
(D) Compacted clay - Answer- D
,What major soil horizon category is not included in the zone designated as topsoil?
(A) A (B) O (C) E (D) C - Answer- D
What soil type is most easily compacted?
(A) Sand(B) Clay(C) Silt(D) Bedrock - Answer- B
What is not a tree characteristic which helps to prevent the loss of water?
(A) Increased leaf surface area (B) Deep root systems(C) Leaf hairs(D) Waxy outer leaf layer - Answer-
A
What irrigation system type provides water slowly to specific areas of the tree root zone?
(A) Drip irrigation(B) High-pressure injection (C) Basin irrigation
(D) Soaker hose - Answer- A
Trees help to control stormwater runoff by all of the following means except:
(A) Trees hold water on bark and leaves
(B) Roots intercept and retain runoff
(C) Fallen leaves create a layer of absorption on the ground
(D) All of the above - Answer- D
What is not an advantage of the use of mulching?
(A) Improve infiltration
(B) Promote deep root system
(C) Reduce soil evaporation
(D) Limit weed competition - Answer- B
What is the minimum slope for drainage pipes placed above an impervious layer?
(A) 1/16" per ft (B) 1/8" per ft (C) 1/4" per ft (D) 1/2" per ft - Answer- C
The main function of a rain garden is which of the following?
, (A) Collect and hold stormwater runoff
(B) Increase water infiltration
(C) Distribute runoff to dry areas
(D) Facilitate deep root systems - Answer- A
What macronutrient most often has the largest requirement for the health of trees?
(A) Iron(B) Sulfur(C) Potassium (D) Nitrogen - Answer- D
What essential element is more readily available in an acidic environment than alkaline?
(A) Iron(B) Calcium (C) Sulfur (D) Potassium - Answer- A
Decurrent Growth - Answer- rounded or broader tree growth
Deciduous - Answer- loss of leaves in the fall
Respiration - Answer- process of converting food into energy
Stomata - Answer- pours in leaves that open and close to allow for water transportation
Xylem - Answer- transportation for the water and minerals throughout the tree
Phloem - Answer- Conducts Carbohydrates
Osmosis - Answer- Process how water enters roots
Organic Matter - Answer- organic components that are decaying matter to help increase water holding &
nutrients to improve soil structure
Required fertilizer distribution rates for quick release are ______________ than for that of slow-release.
(A) Greater(B) Less(C) Equal(D) No relationship - Answer- B
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