What term describes the space between piston ring grooves?

• A. Lands
• B. Grooves
• C. Piston skirt
• D. Ring gaps

Answer: (A)

The space between piston ring grooves is called the land. This raised section of the piston sits between the grooves that hold the rings and provides the surface between the rings. Grooves are the channels that hold the rings themselves, while ring gaps are openings in the rings to allow expansion, and the piston skirt is the lower portion of the piston. So the correct term for the space between the grooves is the land (ring land).