HomeEngineeringNoise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels. 5672. Noise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels.By Admin / September 7, 2025 85 105 125 145 ✅ 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