Firefighter Practice Exam

If an 850-liter underground diesel-fuel tank is filled six times a year, how many kiloliters of fuel are consumed annually?

1. 5.1 kiloliters

2. 51 kiloliters

3. 510 kiloliters

4. 5,100 kiloliters

The correct answer is: 51 kiloliters

To determine the annual consumption of fuel from an 850-liter underground diesel-fuel tank that is filled six times a year, you start by calculating the total volume of fuel consumed in a year. Each time the tank is filled, it holds 850 liters of fuel. Since the tank is filled six times a year, the total amount of fuel consumed annually is: 850 liters per fill × 6 fills per year = 5,100 liters. Next, to convert liters to kiloliters, you divide the number of liters by 1,000 (as there are 1,000 liters in a kiloliter): 5,100 liters ÷ 1,000 = 5.1 kiloliters. This calculation confirms that the correct response accurately represents the annual consumption of fuel, clarifying that the understanding of liters to kiloliters conversion and annual fill frequency is crucial in deriving the right answer. The reasoning and computational process affirm that B, 51 kiloliters, is the correct conclusion based on the known values, interpreting that small discrepancies in misunderstanding of conversions could lead to confusion.