Question 106Electricity/Electronics - 1st Asst/Chief70% to pass
As shown in the illustrated adaptive digital steering control system functional block diagram and listed system interface signals table, what would the rudder order signal output voltage to the rudder servo amplifier be for a rudder order of 20 degrees left rudder? Assume that left rudder order signals are negative in polarity and that right rudder order signals are positive in polarity. Illustration EL-0191
AI Explanation
The correct answer is C) -5.0 VDC.
This is because the question states that left rudder order signals are negative in polarity, and a rudder order of 20 degrees left rudder would correspond to a negative voltage output to the rudder servo amplifier. The illustrated functional block diagram and system interface signals table indicate that the full-scale rudder order signal range is -5.0 VDC to +5.0 VDC, corresponding to full-scale left and right rudder orders, respectively. Therefore, a 20 degree left rudder order would result in an output voltage of -5.0 VDC to the rudder servo amplifier.
The other answer choices are incorrect because A) -2.25 VDC would correspond to a smaller left rudder order, B) -4.0 VDC is not the full-scale left rudder order signal, and D) +5.0 VDC would correspond to a right rudder order, which is the opposite of what is specified in the question.
Related Questions
#104 In viewing the liquid crystal display for the illustrated depth sounder data display unit, what should be done if the graphic display of the ocean bottom is no longer visible on the screen? Illustration EL-0186 #105 Using the trouble analysis chart and faults table provided in the illustration, if the gyrocompass was malfunctioning, but no fault codes are present on the display unit, what is most likely the problem if the DC/DC converter LED status indicator is functioning properly, but the CPU LED status indicator is not blinking? Illustration EL-0195 #107 Upon failure of the normal power supply, how is the emergency generator placed on the line to feed power to the emergency bus? #108 In preparation for paralleling generators, if the electric plant condition is as shown by graph "A", what would be the rotational status of the synchronizing lamps as shown in circuit "B"? Illustration EL-0002 #109 As shown in figure "B" of the illustration, what is the purpose of the synchronous compensator? Illustration EL-0133