HomeEngineeringThe lightest non-inflammable gas is 453. The lightest non-inflammable gas isBy Admin / September 6, 2025 A. H₂ B. He C. Ar D. O₂ ✅ 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