Final answer:
To determine the number of B-I fire extinguishers required for an 18 foot powerboat with installed fuel tanks, we need to consider the requirements set by the National Fire Protection Association (NFPA). According to NFPA 10, which is the standard for portable fire extinguishers, a B-I fire extinguisher is required for every 40 square feet of protected space on a boat.
Step-by-step explanation:
To determine the number of B-I fire extinguishers required for an 18 foot powerboat with installed fuel tanks, we need to consider the requirements set by the National Fire Protection Association (NFPA). According to NFPA 10, which is the standard for portable fire extinguishers, a B-I fire extinguisher is required for every 40 square feet of protected space on a boat.
In order to calculate the square footage of the boat, we can use the formula:
Length × Width = Square footage
Since the length of the boat is given as 18 feet, we also need to know the width in order to calculate the square footage and determine the number of B-I fire extinguishers required.