Calculate the real volume of tank B, in cm³.

From TABLE 2, for Tank B:
Diameter (D) = $730 \text{ mm}$
Height (H) = $1950 \text{ mm}$

Convert millimeters to centimeters ($1 \text{ cm} = 10 \text{ mm}$):

$$\text{Diameter (D)} = 730 \text{ mm} \times \frac{1 \text{ cm}}{10 \text{ mm}} = 73 \text{ cm}$$ $$\text{Height (H)} = 1950 \text{ mm} \times \frac{1 \text{ cm}}{10 \text{ mm}} = 195 \text{ cm}$$

The radius (r) is half of the diameter:

$$\text{Radius (r)} = \frac{\text{D}}{2} = \frac{73 \text{ cm}}{2} = 36.5 \text{ cm}$$

The formula for the volume of a cylinder is $\text{Volume} = \pi \times (\text{radius})^2 \times \text{height}$, with $\pi = 3.142$.

$$\text{Volume} = 3.142 \times (36.5 \text{ cm})^2 \times 195 \text{ cm}$$ $$\text{Volume} = 3.142 \times 1332.25 \text{ cm}^2 \times 195 \text{ cm}$$ $$\text{Volume} = 3.142 \times 259888.75 \text{ cm}^3$$ $$\text{Volume} = 816480.9025 \text{ cm}^3$$

The real volume of tank B is $\text{816480.9025 cm}^3$.