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 power transmission capacity Prevent the belt from running off the pulley Increase the belt velocity Prevent the belt joint from damaging the belt surface Increase the power transmission capacity Prevent the belt from running off the pulley Increase the belt velocity ANSWER DOWNLOAD EXAMIANS APP
Machine Design In designing a sleeve coupling, outer diameter of the sleeve is taken as (where d = Diameter of the shaft) 2d + 20 mm 3.5d 2d + 13 mm d + 17 mm 2d + 20 mm 3.5d 2d + 13 mm d + 17 mm ANSWER DOWNLOAD EXAMIANS APP
Machine Design A fast and loose pulley drive is used when Shafts are arranged at right angles and rotate in one definite direction Shafts are arranged parallel and rotate in the same directions Shafts are arranged parallel and rotate in the opposite directions Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft Shafts are arranged at right angles and rotate in one definite direction Shafts are arranged parallel and rotate in the same directions Shafts are arranged parallel and rotate in the opposite directions Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft ANSWER DOWNLOAD EXAMIANS APP
Machine Design When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as Mitre gears Angular bevel gears Crown bevel gears Internal bevel gears Mitre gears Angular bevel gears Crown bevel gears Internal bevel gears ANSWER DOWNLOAD EXAMIANS APP
Machine Design If b denotes the face width and L denotes the cone distance for a bevel gear, then the bevel factor is written as 1 - (b/L) b/L 1 - 2 b.L b/2L 1 - (b/L) b/L 1 - 2 b.L b/2L ANSWER DOWNLOAD EXAMIANS APP
Machine Design Basic hole is one Whose lower deviation is zero Whose lower as well as upper deviations are zero Whose upper deviation is zero Does not exist Whose lower deviation is zero Whose lower as well as upper deviations are zero Whose upper deviation is zero Does not exist ANSWER DOWNLOAD EXAMIANS APP
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