ISA ARBORIST CERTIFICATION PRACTICE EXAMS PART 2 |100
COMPLETE AND GRADED QUESTIONS AND ANSWERS 2026 LATEST
UPDATED | 100% GRADED CORRECT | 100% GUARANTEED TO PASS |
GET A+
For an ideal soil ratio, what component takes up the least amount of space within the overall
makeup of the soil structure?
(A) Water
(B) Air
(C) Organic matter
(D) Mineral-rich soil - (answer)C
What soil horizon category is most likely to include a large amount of organic material?
(A) A (B) E (C) B (D) C - (answer)A
What soil below most likely has the highest infiltration rate?
(A) Loose sand
(B) Compacted silt
(C) Loose silt
(D) Compacted clay - (answer)A
,What substance may be added to soil to temporarily lower the PH?
(A) Lime
(B) Ash
(C) Sulfur
(D) Calcium - (answer)C
What is the correct scientific name for the sugar maple genus?
(A) Picea(B) Ulmus (C) Magnolia (D) Acer - (answer)D
What statement regarding the net charge of soils is true?
(A) Soils have a net negative charge
(B) Soils have a net positive charge
(C) Positive sites outnumber negative sites
(D) Soils have only entirely positive or negative sites - (answer)A
A soil structure has a layer of clay above a layer of sand. At what point will water begin to enter
the lower layer of sand?
(A) The water will flow immediately through the clay layer into the sand layer
, (B) After the clay layer is partially saturated
(C) After the clay layer is fully saturated
(D) The sand layer is impervious - (answer)C
What soil moisture condition occurs when both the micro and macropores are filled with water?
(A) Pore capacity (B) Wilting point (C) Field capacity (D) Saturation - (answer)D
What irrigation system type is best suited for use on deeper, more mature root systems?
(A) Drip irrigation
(B) High-pressure injection
(C) Basin irrigation
(D) Soaker hose - (answer)B
What tree species is commonly identified as having leaves in an opposite arrangement?
(A) Hawthorne (B) Ash(C) Sycamore (D) Oak - (answer)B
A soil with a high buffering capacity will have which of the following characteristics?
(A) High percentage of pore space
COMPLETE AND GRADED QUESTIONS AND ANSWERS 2026 LATEST
UPDATED | 100% GRADED CORRECT | 100% GUARANTEED TO PASS |
GET A+
For an ideal soil ratio, what component takes up the least amount of space within the overall
makeup of the soil structure?
(A) Water
(B) Air
(C) Organic matter
(D) Mineral-rich soil - (answer)C
What soil horizon category is most likely to include a large amount of organic material?
(A) A (B) E (C) B (D) C - (answer)A
What soil below most likely has the highest infiltration rate?
(A) Loose sand
(B) Compacted silt
(C) Loose silt
(D) Compacted clay - (answer)A
,What substance may be added to soil to temporarily lower the PH?
(A) Lime
(B) Ash
(C) Sulfur
(D) Calcium - (answer)C
What is the correct scientific name for the sugar maple genus?
(A) Picea(B) Ulmus (C) Magnolia (D) Acer - (answer)D
What statement regarding the net charge of soils is true?
(A) Soils have a net negative charge
(B) Soils have a net positive charge
(C) Positive sites outnumber negative sites
(D) Soils have only entirely positive or negative sites - (answer)A
A soil structure has a layer of clay above a layer of sand. At what point will water begin to enter
the lower layer of sand?
(A) The water will flow immediately through the clay layer into the sand layer
, (B) After the clay layer is partially saturated
(C) After the clay layer is fully saturated
(D) The sand layer is impervious - (answer)C
What soil moisture condition occurs when both the micro and macropores are filled with water?
(A) Pore capacity (B) Wilting point (C) Field capacity (D) Saturation - (answer)D
What irrigation system type is best suited for use on deeper, more mature root systems?
(A) Drip irrigation
(B) High-pressure injection
(C) Basin irrigation
(D) Soaker hose - (answer)B
What tree species is commonly identified as having leaves in an opposite arrangement?
(A) Hawthorne (B) Ash(C) Sycamore (D) Oak - (answer)B
A soil with a high buffering capacity will have which of the following characteristics?
(A) High percentage of pore space
