Full access allows:
- Solve all tests online without limits;
- Remove all advertisements on website;
- Adding questions to favorite list;
- Save learning progress;
- Save results of practice exams;
- Watching all wrong answered questions.
11. Why are some diesel engine cylinder liners plated on the wearing surface with porous chromium?
Porous chromium plating contains microscopic pores that act as reservoirs for lubricating oil, maintaining a continuous oil film between the piston rings and cylinder liner to reduce wear and prevent scuffing; this function distinguishes the correct answer.
Comments (0)
There are no comments at the moment. If you found an error or think question is incorrect, tell everyone about it
Only signed in users can write comments
Signin