Question

question 19 / 25
mobile ladders can be damaged by:
select the best answer:
fire and corrosion
transport and impact by other objects
improper handling
all of the above
none of the above

Explanation:

Fire can burn and weaken ladders, corrosion can deteriorate the material, transport - related jolts and impacts from other objects can cause damage, and improper handling like dropping or over - extending can also harm mobile ladders.

Answer:

D. All of the above