Machine Design The cross-section of the arm of a bell crank lever is Elliptical I-section Any one of these Rectangular Elliptical I-section Any one of these Rectangular ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two shafts ‘A’ and ‘B’ under pure torsion are of identical length and identical weight and are made of the same material. The shaft ‘A’ is solid and the shaft ‘B’ is hollow. We can say that None of these Both the shafts are equally good Shaft B is better than shaft A Shaft A is better than shaft B None of these Both the shafts are equally good Shaft B is better than shaft A Shaft A is better than shaft B 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 W/A 3W/A W/2A 2W/A W/A 3W/A W/2A 2W/A 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 Reduce vibration Ensure uniform loading Ensure proper alignment Reduce slip Reduce vibration Ensure uniform loading Ensure proper alignment Reduce slip ANSWER DOWNLOAD EXAMIANS APP
Machine Design The condition for maximum power transmission is that the maximum tension in the flat belt should be equal to(Where, Pc = tension in belt due to centrifugal force) 3 Pc 2 Pc 1 Pc Pc/3 3 Pc 2 Pc 1 Pc Pc/3 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The power transmitted by the belt drive can be increased by Increasing wrap angle by using idler pulley Increasing the initial tension in the belt All of these Dressing the belt to increase the coefficient of friction Increasing wrap angle by using idler pulley Increasing the initial tension in the belt All of these Dressing the belt to increase the coefficient of friction ANSWER DOWNLOAD EXAMIANS APP
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