A double reduction gear train. Shaft a is driven by a machine supplying 1.25kW at 1720rpm. The speed reduction between axles a and b is 3.5 : 1 and axles b and c 4 :1. The pinion on axle a has 24 teeth and the gear on c has 160 teeth. Find the numbers of teeth of the gears on the b-axis

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.