In the water shuttle capacity formula, which three time components are added in the denominator?

• A. Trip Time, Fill Time, Dump Time
• B. Travel Time, Refill Time, Unload Time
• C. Drive Time, Fill Time, Drain Time
• D. Trip Time, Setup Time, Return Time

Answer: (A)

Water shuttle capacity is determined by how much water you deliver in one complete shuttle cycle divided by how long that cycle takes. A full cycle consists of filling the tanker at the source, driving to the incident to dump the water, and then being ready to refill again. Those three time components—Trip Time (driving to the scene with water), Fill Time (refilling at the source), and Dump Time (unloading at the scene)—sum to the total cycle time in the denominator. The amount of water delivered per cycle is the tanker’s capacity, so capacity equals water per cycle divided by cycle time.

For example, if a 1,000-gallon tanker fills in 5 minutes, travels to the incident in 4 minutes, and dumps in 2 minutes, the cycle time is 11 minutes, giving about 91 gallons per minute delivered (1000/11). The other options use terms that describe different or incomplete parts of the process, so they don’t align with how the standard shuttle cycle is defined.