CTSP CTSP Ground Operations and Traffic Control 4

Question 1

When a tree crew is working adjacent to a two-lane road with no shoulder, what is the MINIMUM recommended buffer distance between the work zone and active traffic lanes per ANSI Z133?

Accepted Answer

10 feet

Answer

ANSI Z133 recommends a minimum 10-foot buffer between the work zone and the nearest active traffic lane when no shoulder exists.

Question 2

A ground worker notices a limb is about to fall in an unexpected direction. The FIRST action should be to:

Accepted Answer

Shout a warning to all personnel and move to the pre-designated escape route

Answer

Immediate audible warning and movement to the pre-planned escape route is the priority to protect all workers from the unexpected hazard.

Question 3

Which type of traffic control device is used to guide drivers through a temporary work zone by physically separating travel lanes from the work area?

Accepted Answer

Channelizing devices (cones, drums, barriers)

Answer

Channelizing devices such as cones, drums, and barriers physically separate and guide traffic through or around a temporary work zone.

Question 4

Under the MUTCD, the minimum distance for an advance warning sign on a road with a 45 mph speed limit in a typical urban environment is approximately:

Accepted Answer

350 feet

Answer

The MUTCD prescribes approximately 350 feet advance warning sign spacing for a 45 mph urban roadway to give drivers adequate reaction time.

Question 5

A crew is chipping brush alongside a residential street. Which PPE item is MOST critical to prevent hearing damage from the chipper?

Accepted Answer

Hearing protection (ear plugs or muffs)

Answer

Wood chippers produce noise levels commonly exceeding 100 dB, making hearing protection essential to prevent noise-induced hearing loss.

CTSP - Certified Treecare Safety Professional Practice Test

CTSP - Certified Treecare Safety Professional Practice Test

CTSP CTSP Ground Operations and Traffic Control 4