Question

Backpack-type water vacuum tanks normally have a capacity of:

A. 1 to 3 gallons (4 L to 11 L).
B. 4 to 5 gallons (15 L to 20 L).
C. 6 to 10 gallons (23 L to 38 L).
D. 10 to 15 gallons (38 L to 57 L).

Answer 1

Backpack-type water vacuum tanks typically have a capacity of 4 to 5 gallons (15 L to 20 L), which is option B. This is in line with the standard capacities used for such equipment.

Step-by-step explanation:

The backpack-type water vacuum tanks typically have a capacity range. To find out which option correctly represents their capacity, one should refer to the standard values used for these types of equipment. According to what we know, backpack water vacuum tanks typically hold 4 to 5 gallons (15 L to 20 L), therefore the correct answer is B. 4 to 5 gallons (15 L to 20 L).

In terms of water requirements for hiking, we use the given data that the average person needs 1 gallon of water to drink per day. For a 3 day hike, the calculation would be 3 gallons multiplied by 128 fluid ounces, which makes 384 fluid ounces needed for the hike. This example helps to clarify the concept of capacity and the relationship between gallons and fluid ounces.