Machine Design If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (neglecting centrifugal tension) will be equal to (Where, Pc is centrifugal tension) P1 + P2 ⅟₂ × (P1 + P2) [⅟₂ × (P1 + P2)] + Pc P1 - P2 P1 + P2 ⅟₂ × (P1 + P2) [⅟₂ × (P1 + P2)] + Pc P1 - P2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ball bearings are, usually, made from Low carbon steel High speed steel Medium carbon steel High carbon steel Low carbon steel High speed steel Medium carbon steel High carbon steel ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a flat belt drive, if the slip between the driver and belt is 1 %, between the belt and follower is 3% and driver and follower pulley diameters are equal, then velocity ratio of the drive will be 0.98 0.99 0.96 0.97 0.98 0.99 0.96 0.97 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The valve rod in a steam engine is connected to an eccentric rod by Knuckle joint Bolted joint Universal coupling Cotter joint Knuckle joint Bolted joint Universal coupling Cotter joint ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which is correct statement? Stress concentration in static loading is Very serious in brittle materials and less serious in ductile materials Very serious in ductile materials and less serious in brittle materials Equally serious in both types of materials Seriousness would depend on other factors Very serious in brittle materials and less serious in ductile materials Very serious in ductile materials and less serious in brittle materials Equally serious in both types of materials Seriousness would depend on other factors ANSWER DOWNLOAD EXAMIANS APP
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 / P2 = e–ᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα P1 / P2 = e–ᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα ANSWER DOWNLOAD EXAMIANS APP
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