Question 1936 Deck General

The correct answer is B) to within one-half of their diameter from the bottom of the tank. This requirement is specified in the Code of Federal Regulations (CFR) for small passenger vessels. The regulations state that fill lines and sounding pipes for gasoline tanks must extend to within one-half of their diameter from the bottom of the tank. This ensures that the tank can be properly filled and monitored without the risk of spillage or overfilling. The other options are incorrect because A) does not meet the regulatory requirement, C) is too specific and not the standard, and D) would allow the fill line/sounding pipe to extend all the way to the tank top, which is not the intended design.