Machine Design The objective of 'crowning' of the flat pulleys of belt drive is to Increase the belt velocity Increase the power transmission capacity Prevent the belt joint from damaging the belt surface Prevent the belt from running off the pulley Increase the belt velocity Increase the power transmission capacity Prevent the belt joint from damaging the belt surface Prevent the belt from running off the pulley ANSWER DOWNLOAD EXAMIANS APP
Machine Design For unequal width of butt straps, the thicknesses of butt straps are 0.75 t for narrow strap on the inside and 0.625 t for wide strap on the outside 0.75 t for both the straps on the inside and outside 0.625 t for both the straps on the inside and outside 0.75 t for wide strap on the inside and 0.625 t for narrow strap on the outside 0.75 t for narrow strap on the inside and 0.625 t for wide strap on the outside 0.75 t for both the straps on the inside and outside 0.625 t for both the straps on the inside and outside 0.75 t for wide strap on the inside and 0.625 t for narrow strap on the outside 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) 3.5d d + 17 mm 2d + 20 mm 2d + 13 mm 3.5d d + 17 mm 2d + 20 mm 2d + 13 mm ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to obtain bolt of uniform strength Drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread Tighten die bolt properly Increase its length Increase shank diameter Drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread Tighten die bolt properly Increase its length Increase shank diameter ANSWER DOWNLOAD EXAMIANS APP
Machine Design A long helical spring having a spring stiffness of 12 kN/m and number of turns 20, breaks into two parts with number of turns 10 each in both the parts. If the two parts are connected in series, then the softness of the resultant spring will be 30 kN/m 6 kN/m 24 kN/m 12 kN/m 30 kN/m 6 kN/m 24 kN/m 12 kN/m ANSWER DOWNLOAD EXAMIANS APP
Machine Design The stress induced in the belt is, Direct shear stress Torsional shear stress Compressive stress Tensile stress Direct shear stress Torsional shear stress Compressive stress Tensile stress ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS