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In this week’s lab, we will be learning the importance of gear ratios in gears trains and how to select a gear train for an application.Methodology:Exercise IA:Calculate the gear ratios for the given pairs. Also give the gear type, number of teeth, pitch diameter, and diametral pitch for each gear as well. For the second part of this exercise, run the gear train with each pair of gears at three different speeds. Record the RPM for each gear to calculate the actual and theoretical velocity ratios.Exercise IB:Given a set of specifications, select a worm gear speed reducer. Data:Exercise IA:Part NumberGear TypeNumber ofTeethPitchDiameterDiametralPitchGear RatioH2472spur723”241.33H2496spur964”24L112Ymiter241.5”161.0L112Ymiter241.5”16H1616Rhelical161”162.0H1632Lhelical322”16SpeedGear Pair 1Actual VRTheoretical VRN1N24870.8750.7561310.50.8080.75819140.7370.75SpeedGear Pair 1Actual VRTheoretical VR