Machine Design The objective of 'crowning' of the flat pulleys of belt drive is to Prevent the belt joint from damaging the belt surface Increase the belt velocity Increase the power transmission capacity Prevent the belt from running off the pulley Prevent the belt joint from damaging the belt surface Increase the belt velocity Increase the power transmission capacity Prevent the belt from running off the pulley ANSWER DOWNLOAD EXAMIANS APP
Machine Design In designing a key, it is assumed that the distribution of forces along the length of key Varies linearly Varies exponentially, being more at the torque-input end Varies exponentially, being less at the torque-input end Is uniform throughout Varies linearly Varies exponentially, being more at the torque-input end Varies exponentially, being less at the torque-input end Is uniform throughout ANSWER DOWNLOAD EXAMIANS APP
Machine Design Basic shaft is one Whose upper deviation is zero Whose lower as well as upper deviations are zero Whose lower deviation is zero Does not exist Whose upper deviation is zero Whose lower as well as upper deviations are zero Whose lower deviation is zero Does not exist ANSWER DOWNLOAD EXAMIANS APP
Machine Design The velocity factor for precision metallic gears cut with high accuracy and operating at velocities up to 20 m/s is equal to 3/ (3 + v) 6/ (6 + v) 4.5/ (4.5 + v) 0.75/ (0.75 + √v) 3/ (3 + v) 6/ (6 + v) 4.5/ (4.5 + v) 0.75/ (0.75 + √v) ANSWER DOWNLOAD EXAMIANS APP
Machine Design For same pulley diameters, center distance, belt speed and belt and pulley materials, Open and crossed belt drives transmit same power Crossed belt drive transmits more power than open belt drive Power transmission does not depend upon open and crossed types of constructions Open belt drive transmits more power than crossed belt drive Open and crossed belt drives transmit same power Crossed belt drive transmits more power than open belt drive Power transmission does not depend upon open and crossed types of constructions Open belt drive transmits more power than crossed belt drive ANSWER DOWNLOAD EXAMIANS APP
Machine Design While designing a screw in a screw jack against buckling failure, the end conditions for the screw are taken as One end fixed and the other end hinged Both the ends hinged One end fixed and the other end free Both the ends fixed One end fixed and the other end hinged Both the ends hinged One end fixed and the other end free Both the ends fixed ANSWER DOWNLOAD EXAMIANS APP
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