Machine Design If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (neglecting centrifugal tension) will be equal to (Where, Pc is centrifugal tension) P1 - P2 P1 + P2 ⅟₂ × (P1 + P2) [⅟₂ × (P1 + P2)] + Pc P1 - P2 P1 + P2 ⅟₂ × (P1 + P2) [⅟₂ × (P1 + P2)] + Pc ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw will be self locking, if Friction angle is more than helix angle Efficiency of screw is 100% Friction angle is equal to helix angle Friction angle is less than helix angle Friction angle is more than helix angle Efficiency of screw is 100% Friction angle is equal to helix angle Friction angle is less than helix angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to remove internal stresses produced by hardening the steel, the process usually adopted is Spheroidizing Annealing Normalizing Tempering Spheroidizing Annealing Normalizing Tempering ANSWER DOWNLOAD EXAMIANS APP
Machine Design Antifriction bearings are Sleeve bearings Thin lubricated bearings Hydrodynamic bearings None of these Sleeve bearings Thin lubricated bearings Hydrodynamic bearings None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design For same pulley diameters, center distance, belt speed and belt and pulley materials, Crossed belt drive transmits more power than open belt drive Open belt drive transmits more power than crossed belt drive Power transmission does not depend upon open and crossed types of constructions Open and crossed belt drives transmit same power Crossed belt drive transmits more power than open belt drive Open belt drive transmits more power than crossed belt drive Power transmission does not depend upon open and crossed types of constructions Open and crossed belt drives transmit same power ANSWER DOWNLOAD EXAMIANS APP
Machine Design When two helical springs of equal lengths are arranged to form a cluster spring, then Load taken by each spring will be half the total load Shear stress in each spring will be equal Both A and B is correct Only A is correct Load taken by each spring will be half the total load Shear stress in each spring will be equal Both A and B is correct Only A is correct ANSWER DOWNLOAD EXAMIANS APP
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