Hey StevenT, The correct answer is, false... Apples and oranges are both fruits...but are they the exact same...? No, they are different... Asphalt shingles are a one-piece construction and architectural are a layered construction...So they both are a roofing shingle but they are not the same...And neither is a truck VS. a car...Both have tires and a motor and doors and windows...But no one would say that there is "no" difference between a car and a truck... It was a trick question...Designed to see if you were paying attention and have some common sense... I got a question wrong on my CSL examine. It asked how long you could temporarily put something in front of a fire extinguisher during the working day, before it had to be moved... The correct answer is...No matter how long, nothing can block a fire extinguisher... Temporarily or not... I was thinking during the working hrs...Someone could just move it and use the fire extinguisher like normal...But I was wrong...The word, Temporary and during the working hrs threw me off from a proper assestment of the question and the word, No difference between the two shingles, threw you off from the correct answer...Tks, Geno...