HomeEngineeringMain boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about __________ kms. 2367. Main boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about __________ kms.By Admin / September 7, 2025 0.1 to 0.5 1.5 to 4.5 7.5 to 12.5 15-20 ✅ 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