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 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = e–ᶠα ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft coupling should Hold the shafts in perfect alignment Be easy to connect or disconnect Transmit full power of the shaft All of these Hold the shafts in perfect alignment Be easy to connect or disconnect Transmit full power of the shaft All of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design Set screws are Slotted for a screw driver and generally used with a nut Used to prevent relative motion between parts Similar to stud Similar to small size tap bolts except that a greater variety of shapes of heads are available Slotted for a screw driver and generally used with a nut Used to prevent relative motion between parts Similar to stud Similar to small size tap bolts except that a greater variety of shapes of heads are available ANSWER DOWNLOAD EXAMIANS APP
Machine Design The piston pin bearings in heavy duty diesel engines are Needle roller bearings Spherical roller bearings Tapered roller bearings Cylindrical roller bearings Needle roller bearings Spherical roller bearings Tapered roller bearings Cylindrical roller bearings ANSWER DOWNLOAD EXAMIANS APP
Machine Design The contact ratio is the ratio of Length of arc of approach to the circular pitch Length of arc of recess to the circular pitch Length of arc of contact to the circular pitch Length of path of contact to the circular pitch Length of arc of approach to the circular pitch Length of arc of recess to the circular pitch Length of arc of contact to the circular pitch Length of path of contact to the circular pitch ANSWER DOWNLOAD EXAMIANS APP
Machine Design A bolt of uniform strength can be developed by Keeping the core diameter of threads equal to the diameter of unthreaded portion of the bolt Keeping the core diameter smaller than the diameter of the unthreaded portion None of these Keeping the nominal diameter of threads equal to the diameter of unthreaded portion of the bolt Keeping the core diameter of threads equal to the diameter of unthreaded portion of the bolt Keeping the core diameter smaller than the diameter of the unthreaded portion None of these Keeping the nominal diameter of threads equal to the diameter of unthreaded portion of the bolt ANSWER DOWNLOAD EXAMIANS APP
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