| What statement is true concerning the operating principle of a liquid level sensing and transmitting system of the capacitance type? |
| A) The capacitance method is generally used with non-conductive liquids and works on the principle of the substantial difference between the dielectric constant of air and that of the liquid in the tank. |
| B) The capacitance method is generally used with conductive liquids and works on the principle of the substantial difference between the dielectric constant of air and that of the liquid in the tank. |
| C) The capacitance method is generally used with conductive liquids and works on the principle of the substantial difference between the specific gravity of air and that of the liquid in the tank. |
| D) The capacitance method is generally used with non-conductive liquids and works on the principle of the substantial difference between the specific gravity of air and that of the liquid in the tank. |
