Engine: General Subjects

1. A Potable water pumps of the non-positive displacement type require a vacuum-priming system if located above the potable water storage tanks.
2. B Potable water pumps of the positive displacement type require a vacuum-priming system if located above the potable water storage tanks.
3. C Potable water pumps of the non-positive displacement type require a vacuum-priming system if located below the potable water storage tanks.
4. D Potable water pumps of the positive displacement type require a vacuum-priming system if located below the potable water storage tanks.

Tip: press A-D to answer