HomeEngineeringThe piston compression rings are made of 130. The piston compression rings are made ofBy Admin / September 13, 2025 cast iron steel aluminium bronze ✅ The correct answer is option A.
1. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm². Leave a Comment / Basic Chemical Engineering MCQs, Chemical Engineering, Engineering / By Admin
2. Transformer cores are normally made from Leave a Comment / Basic Chemical Engineering MCQs, Chemical Engineering, Engineering / By Admin