Question

question 18/25
mobile ladders can be damaged by:
select the best answer:
transport and impact by other objects
improper handling
fire and corrosion
all of the above
none of the above
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Explanation:

Transport can cause mechanical damage due to jolts and impacts from other objects. Improper handling like dropping or rough - use can damage ladders. Fire can burn and corrode metal or wooden parts, and corrosion over time can weaken the structure. So all these factors can damage mobile ladders.

Answer:

D. All of the above