Certified Arborist Tree Risk

Question 1

Which risk assessment method is regarded as the minimum standard?

Accepted Answer

Visual assessment of trees

Answer

Excavation of the root collar

Answer

Inspection of the aerial canopy

Answer

Testing for decay

Question 2

The most common sources of tree problems are:

Accepted Answer

Adverse environmental conditions

Answer

Pathogens

Answer

Insects

Answer

Mites

Question 3

Why is having a good taper important for a stem?

Accepted Answer

When a force is applied to a stem, it breaks less frequently if the taper is good.

Answer

A stem that has a good taper may produce more fruit.

Answer

For insects, a well-tapered stem makes a sturdy perch.

Answer

A well-tapered stem enhances its ability to absorb nutrients.

Question 4

What is the proper way to adjust the hinge on a tree with a particularly large diameter?

Accepted Answer

The hinge should be smaller.

Answer

The hinge should be larger.

Answer

The hinge should be deeper.

Answer

No adjustment needed.

Question 5

When lightning strikes a tree, which of the following factors DOES NOT affect the extent of the damage?

Accepted Answer

Leaf thickness

Answer

Wood porosity

Answer

Bark thickness

Answer

Moisture content

Question 6

What is a naturally occurring event that could not be foreseen or prevented in legal terms?

Accepted Answer

An act of God

Answer

A liable act

Answer

An inevitable act

Answer

An act of interest

Question 7

Early fall color on a tree most typically indicates that there are issues with:

Accepted Answer

The tree’s roots.

Answer

The tree’s trunk.

Answer

The tree’s crown

Answer

The tree’s scaffold branches.

Question 8

Which of these is a typical cause of chronic stress?

Accepted Answer

Poor drainage

Answer

Early frost

Answer

Fire

Answer

Lightning

Question 9

When is the ideal time to spray trees with micronutrients?

Accepted Answer

Just prior to the time of rapid growth

Answer

When evening falls

Answer

Early in the winter season

Answer

Shortly following transplantation

Question 10

Which of the following determines the risk of trees?

Accepted Answer

The girdling roots' presence.

Answer

The soil's pH levels.

Answer

The popularity of tree species in landscaping.

Answer

The status of the arborist certification.