Machine Design A screw will be self locking, if Efficiency of screw is 100% Friction angle is more than helix angle Friction angle is less than helix angle Friction angle is equal to helix angle Efficiency of screw is 100% Friction angle is more than helix angle Friction angle is less than helix angle Friction angle is equal to helix angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design If a load W is applied instantaneously on a bar; Then the stress induced in bar will Be independent of ratio of mass of load W to mass of bar (y) Decrease with decrease in y Increase with increase in y Depend on other considerations Be independent of ratio of mass of load W to mass of bar (y) Decrease with decrease in y Increase with increase in y Depend on other considerations ANSWER DOWNLOAD EXAMIANS APP
Machine Design The power transmitted by the belt drive can be increased by Increasing the initial tension in the belt All of these Increasing wrap angle by using idler pulley Dressing the belt to increase the coefficient of friction Increasing the initial tension in the belt All of these Increasing wrap angle by using idler pulley Dressing the belt to increase the coefficient of friction ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a load W is applied suddenly on a bar of cross-sectional area A, the stress induced in the bar will be 2W/A W/2A 3W/A W/A 2W/A W/2A 3W/A W/A ANSWER DOWNLOAD EXAMIANS APP
Machine Design A spring of stiffness 1000 N/m is stretched initially by 100 mm from the undeformed position. The work required to stretch it by another 100 mm is 5 N-m 15 N-m 7 N-m 10 N-m 5 N-m 15 N-m 7 N-m 10 N-m ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set in order to Ensure proper alignment Ensure uniform loading Reduce slip Reduce vibration Ensure proper alignment Ensure uniform loading Reduce slip Reduce vibration ANSWER DOWNLOAD EXAMIANS APP
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