HomeEngineeringThe efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction) 11628. The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction)By Admin / September 8, 2025 α = 45° + α = 45° – α = 90° + φ α = 90° – φ ✅ 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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