1.1 Draw a component block diagram for each of the following feedback control systems: (a) The manual steering system of an automobile (b) Drebbel's incubator Problems 43 (c) The water level controlled by a float and valve (d) Watt's steam engine with fly-ball governor In each case, indicate the location of the elements listed below and give the units associated with each signal: The process The process desired output signal The sensor The actuator The actuator output signal The controller The controller output signal The reference signal The error signal Notice that in a number of cases the same physical device may perform more than one of these functions.