Question

The pistons are usually given a coating such as tin plating in order to __________

(a) reduce weight

(b) conduct heat efficiently

(c) reduce the possibility of scoring

(d) reduce friction

I have been asked this question in unit test.

Asked question is from Terminologies and Defintions topic in portion Two Stroke Engines of IC Engine

Answer 1

Answer: (c) reduce the possibility of scoring

Explanation: Pistons in internal combustion engines are often coated with materials like tin plating to reduce the possibility of scoring. Scoring occurs when metal particles or debris cause scratches or damage to the piston or cylinder wall, and such coatings help protect the piston surface, ensuring smoother movement and longevity of engine components.