Machine Design The material used for brake lining should have __________ coefficient of friction. Low None of these Moderate High Low None of these Moderate High ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given byWhere m = mass of belt per meter (kg/m)v = belt velocity (m/s)f = coefficient of frictiona = angle of wrap (radians) P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα ANSWER DOWNLOAD EXAMIANS APP
Machine Design The bearings of heavy series have capacity __________ over the medium series. 10 to 20% 20 to 30% 30 to 40% 40 to 50% 10 to 20% 20 to 30% 30 to 40% 40 to 50% ANSWER DOWNLOAD EXAMIANS APP
Machine Design The connecting rod bolts are tightened up with initial tension greater than the external load so that Bolts are weakest elements Joint may not open up The resultant load on the bolt would not be affected by the external cyclic load Bolts will not loosen during service Bolts are weakest elements Joint may not open up The resultant load on the bolt would not be affected by the external cyclic load Bolts will not loosen during service ANSWER DOWNLOAD EXAMIANS APP
Machine Design Soderberg relation is based on __________ of the material whereas all other failure relation for dynamic loading are based on ultimate strength of the material. Elastic strength Yield strength Shear strength None of these Elastic strength Yield strength Shear strength None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to obtain bolt of uniform strength Increase shank diameter Increase its length Tighten die bolt properly Drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread Increase shank diameter Increase its length Tighten die bolt properly Drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS