Question

question 14 / 20 what is the proper angle of inclination when using the articulated ladder in the single or extension ladder configuration? select the best answer: 90 degrees 60 degrees 75 degrees 180 degrees previous question next question

Explanation:

Safety - standards recommend an angle of 75 degrees for single or extension ladders to ensure stability and safety. 90 degrees would be vertical and unstable, 60 degrees is too shallow, and 180 degrees is flat and not a proper ladder - incline.

Answer:

75 degrees