HomeEngineering__________ rubber is generally used for making ‘O’ rings used for vacuum sealings. 300. __________ rubber is generally used for making ‘O’ rings used for vacuum sealings.By Admin / September 6, 2025 A. Natural B. Neoprene C. Butadiene D. Nitrile ✅ The correct answer is option B.
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