Oilers/Plant Tenders (HHC) Civil Service Practice Exam

Can three pieces of pipe each 2'8" long be cut from a length of pipe 8' 1 3/8" long if there is a waste of 1/8" per cut?

1. Yes

2. No

3. Only two pieces can be cut

4. Only one piece can be cut

The correct answer is: Yes

To determine if three pieces of pipe, each measuring 2'8" (which converts to 32 inches), can be cut from a longer piece of pipe measuring 8'1 3/8" (which converts to 97.375 inches), while accounting for a waste of 1/8" per cut, we need to calculate the total length required for the three pieces, including the waste from the cuts. First, let's calculate the total required length for the three pieces: - Each piece is 32 inches long, so for three pieces, the total length is: 32 inches × 3 = 96 inches. Now, we must account for the cuts. Since there are two cuts required to separate three pieces, and each cut results in 1/8" of waste, the total waste from the cuts is: - 1/8 inch × 2 cuts = 1/4 inch. Now, we add the total length of the pieces to the total waste: - Total length needed = 96 inches + 1/4 inch = 96.25 inches. Next, we convert this total length back to inches: - 96.25 inches = 96 and 1/4 inches