Engine: Motor Plants and Auxiliary Boilers

1. A Rubber parts such as the diaphragm should be washed with soap and water, and metal parts such as the valve discs and seats should be cleaned with non-flammable solvent.
2. B Rubber parts such as the diaphragm and metal parts such as the valve discs and seats should all be cleaned with non-flammable solvent.
3. C Rubber parts such as the diaphragm should be cleaned with non-flammable solvent, and metal parts such as the valve discs and seats should be washed with soap and water.
4. D Rubber parts such as the diaphragm and metal parts such as the valve discs and seats should all be washed with soap and water.

Tip: press A-D to answer