ISA Arborist Certification Practice Exam Questions and Answers (Verified Answers by Expert)
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ISA Arborist Certification
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ISA Arborist Certification
ISA Arborist Certification Practice Exam Questions and Answers (Verified Answers by Expert)
ISA Arborist Certification Practice Exam Questions and Answers (Verified Answers by Expert)
ISA Arborist Certification Practice Exam Questions and Answers 2023 - 2024 (Verified Answers by Expert)
1.The ideal soil ratio for solids to pore space is:
(A)20:80 (B) 35:65 (C) 40:60 (D) 50:50 ANS : D
2.What is the correct scientific name for the oak tree genus?
(A)Quercus (B) Pyrus (C) Larix (D) Acer ANS : A
3.Which of the following is not one of the five major categories of soil hori- zons?
(A)O (B) E (C) N (D) B ANS : C
4.Loam is least composed of what soil classification?
(A)Sand(B) Silt(C) Clay(D) Loam is composed of all soils evenly ANS : C
5.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 ANS : 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 ANS : C
7.Field capacity is achieved after the draining of which of the following?
(A)Gravitational water
(B)Capillary water
(C)Micropore water
(D)Compacted drainage ANS : A
8.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 ANS : C
9.What soil below most likely has the lowest infiltration rate?
(A)Loose sand
(B)Compacted sand
(C)Loose clay
(D)Compacted clay ANS : D
10.What major soil horizon category is not included in the zone designated as topsoil?
(A)A (B) O (C) E (D) C ANS : D
11.What soil type is most easily compacted?
(A) Sand(B) Clay(C) Silt(D) Bedrock ANS : 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 ANS : A
13.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 ANS : A
14.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 ANS : D
15.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 ANS : B
16.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 ANS : C
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