HomeEngineeringHardness of steel is increased by adding sulphur, lead and phosphorus. 11315. Hardness of steel is increased by adding sulphur, lead and phosphorus.By Admin / September 8, 2025 Yes No ✅ 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
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