Question

Why liners are used in the cylinder?

(a) Having liner only with better-material can be more economical

(b) Having liner results in low cost

(c) Having liner only with better-material can be less economical

(d) Having liner results in high cost

The question was asked in an international level competition.

Query is from IC Engine topic in division Design of IC Engine Components of Automotive Engine Design

Answer 1

Right option is (a) Having liner only with better-material can be more economical

The best explanation: By having cylinder liner only with better-material can be more economical instead of having all the material of the engine with a better grade of material.