HomeEngineeringPreheating before welding is done to 575. Preheating before welding is done toBy Admin / September 6, 2025 A. Make the plate softer B. Burn oil & grease sticking to plate surfaces C. Avoid plate distortion D. Prevent cold cracks ✅ 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