EWP Environmental and Weather Conditions 2

Question 1

What instrument is used on or near an EWP worksite to accurately measure wind speed?

Accepted Answer

Anemometer

Answer

An anemometer measures wind speed and is the appropriate instrument to determine whether conditions meet the manufacturer's safe operating wind speed limit.

Question 2

Under Australian WHS guidelines, who shares responsibility for monitoring weather conditions during EWP operations?

Accepted Answer

Both the operator and the PCBU/supervisor share responsibility

Answer

Under the WHS Act, both the PCBU (through supervision and planning) and the operator (through ongoing vigilance) share a duty of care to monitor and respond to changing weather conditions.

Question 3

When should an EWP operator consult the manufacturer's manual regarding weather operating limitations?

Accepted Answer

Before every operation, as weather limits vary between different EWP models

Answer

Weather operating limits differ between EWP models, so operators must check the specific manufacturer's manual before each shift to know the applicable thresholds.

Question 4

What should an EWP operator do when dark storm clouds are observed approaching the worksite?

Accepted Answer

Lower the EWP to ground level and move it to a sheltered location before the storm arrives

Answer

Proactively lowering and sheltering the EWP before storm arrival prevents exposure to high winds, lightning, and sudden weather changes that could make safe descent more difficult.

Question 5

What is the primary reason wind speed is a critical factor when operating an EWP with a long elevated boom?

Accepted Answer

Wind creates a horizontal force on the boom and platform, increasing the tip-over risk

Answer

Horizontal wind forces acting at the end of an extended boom create a significant overturning moment at the machine's base, which can exceed the rated stability of the EWP.

EWP Licence Practice Test

EWP Licence Practice Test

EWP Environmental and Weather Conditions 2