HomeEngineeringThe maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels. 5710. The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels.By Admin / September 7, 2025 60 90 105 120 ✅ 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