The carbon deposits on the piston crown and in the ring grooves （）.
举一反三
- Piston cooling fins are located ______. A: at top the piston crown B: beneath the piston crown C: at the base of the piston skirt D: inside the cylinder liner<br/>cooling water jacket
- A diesel engine piston ring face is in direct contact with the （）.
- What are the parts of the piston? A: crown B: journal C: sleeve D: skirt
- What caused the deposits A: The hydrochloric acid broke the carbon bonds in tile carbon dioxide, B: The magnesium oxide broke the carbon oxygen bonds in the carbon dioxide. C: The burning magnesium broke the carbon oxygen bonds in the carbon dioxide. D: The gas collection method broke the carbon-oxygen bonds in the carbon dioxid
- For any piston ring to operate smoothly without scuffing, the ring must be_______. A: of a material harder than the cylinder line B: properly lubricated C: prevented from compressing D: prevented from rotating during engine operation