1. In the given figure, gear 1 has 24 teeth and gear 2 has 70 teeth of PD=4. Gear 3 has 20 teeth and Gear 4 has 50 teeth of PD=3. a) Find the value of the center distance between shafts A and C b) Find the RPM of gear 4 if gear 1 turns 1,200 rpm c) Find the torque at shaft C if the input horsepower at shaft A is 50. The efficiency of each pair of gears is 98%. 65000 x HP Torque (in. lb) NRPM SHAFTB SHAFTA SHAFTC CEAR ! CEAR 3' CEAR 4 CEAR 2

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Metal Casting

Metal casting is described as a manufacturing process in which a mold cavity is produced by sand, and molten metal is filled inside a mold cavity. The desirable shaped object is achieved after the solidification of molten metal. Large metal objects like machine beds, motor bodies, and others can easily be manufactured using metal casting. The place or shop where metal casting is performed is called foundry.