HomeEngineeringA gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm. 5648. A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm.By Admin / September 7, 2025 1000 to 2000 3000 to 6000 6000 to 9000 10000 to 100000 ✅ The correct answer is option D.
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