FREE ISA Arboricultural Safe Work Practices Questions and Answers

Question 1

An arborist who is NOT a qualified line-clearance arborist is assigned to prune a tree with branches that are 12 feet away from a 45 kV (45,000 volts) primary distribution line.
According to ANSI Z133 standards, what is the required action?

Accepted Answer

Notify the electric utility and halt work until the lines are de-energized or shielded.

Answer

Use a fiberglass pole pruner to maintain a safe distance.

Answer

Proceed with the work as long as a spotter is present to monitor clearance.

Answer

Trim only the branches that are more than 10 feet away from the line.

Question 2

Rotational kickback is a primary hazard when operating a chainsaw. This violent, upward and backward motion of the saw is most likely to occur when which part of the guide bar makes contact with a solid object?

Accepted Answer

The upper quadrant of the guide bar's tip.

Answer

The bottom edge of the bar, used for a pulling chain.

Answer

The top edge of the bar near the powerhead.

Answer

The body of the bar, when it gets pinched in a cut.

Question 3

Which of the following is a critical and mandatory step in emergency preparedness that must be completed BEFORE an arborist begins any tree climbing or aerial lift operation?

Accepted Answer

Have at least one other worker on-site who is trained in aerial rescue and first aid.

Answer

Ensure the client has paid for the job in full.

Answer

Complete a full inventory of all ground tools.

Answer

Position the wood chipper for immediate use.

Question 4

A ground worker is tasked with operating a chainsaw to buck logs into smaller pieces at a job site. According to ANSI Z133 standards, which of the following combinations represents the MINIMUM required personal protective equipment (PPE) for this task?

Accepted Answer

Hard hat, hearing protection, eye protection, and cut-resistant leg protection.

Answer

Steel-toed boots, gloves, and safety glasses.

Answer

A high-visibility vest and a hard hat.

Answer

Hearing protection and cut-resistant chaps.

Question 5

During a rigging operation to remove a large limb, an arborist needs to attach the rigging line to the piece being cut. Which of the following knots is most appropriate for this application because it forms a secure, non-jamming sliding loop that cinches tightly around the limb?

Accepted Answer

Running bowline

Answer

Figure 8 on a bight

Answer

Taut-line hitch

Answer

Prusik knot

Question 6

Which of the following best describes the primary safety function of the ground person responsible for managing the drop zone during tree removal operations?

Accepted Answer

To secure the area from entry by all unauthorized people and vehicles.

Answer

To operate the chipper and keep the work area tidy.

Answer

To direct the climber on which cuts to make next.

Answer

To sharpen chainsaws and refuel equipment for the climber.

An arborist who is NOT a qualified line-clearance arborist is assigned to prune a tree with branches that are 12 feet away from a 45 kV (45,000 volts) primary distribution line.According to ANSI Z133 standards, what is the required action?

An arborist who is NOT a qualified line-clearance arborist is assigned to prune a tree with branches that are 12 feet away from a 45 kV (45,000 volts) primary distribution line.
According to ANSI Z133 standards, what is the required action?