Machine Design The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given by Where m = mass of belt per meter (kg/m) v = belt velocity (m/s) f = coefficient of friction a = angle of wrap (radians) (P1 - mv²)/ (P2 - mv²) = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = eᶠα P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = eᶠα P1 / P2 = e–ᶠα ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the screw in a mechanical screw jack rotates, the load kept on the top of it moves Axially upwards or downwards Axially upwards Axially downwards None of these Axially upwards or downwards Axially upwards Axially downwards None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design The period during which the cam follower remains at rest, when cam moves, is known as Idle period Dwell period Constant period Fixed period Idle period Dwell period Constant period Fixed period ANSWER DOWNLOAD EXAMIANS APP
Machine Design A saddle key __________ power through frictional resistance only. None of these Transmits Does not transmit Either A or B None of these Transmits Does not transmit Either A or B ANSWER DOWNLOAD EXAMIANS APP
Machine Design If d is the normal diameter of a bolt in mm, then the initial tension in kg in a bolt used for making a fluid tight joint as for steam engine cover joint is calculated by the relation 151 d 168 d 138 d 124 d 151 d 168 d 138 d 124 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following pipe joints would be suitable for pipes carrying steam? Bell and spigot Threaded Flanged Expansion Bell and spigot Threaded Flanged Expansion ANSWER DOWNLOAD EXAMIANS APP
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