Question 464Electricity/Electronics - Assistant Engineer70% to pass
Referring to the impressed current cathodic protection system shown in the illustration, if required to control the current to the anodes manually by using the hand adjustment potentiometer, what statement best represents the changes that should prompt one to recheck the reference electrode voltage (hull potential)? Illustration EL-0090
AI Explanation
The correct answer is A) Changes in vessel speed, sea water temperature, and sea water salinity should all prompt rechecking.
This is because an impressed current cathodic protection system is designed to compensate for changes in environmental factors that can affect the electrochemical corrosion process. Variations in vessel speed, sea water temperature, and sea water salinity can all impact the current flow and voltage required to adequately protect the vessel's hull. Therefore, it is important to regularly check the reference electrode voltage (hull potential) to ensure the system is operating as intended and providing the necessary level of corrosion protection.
The other options are incorrect because they either omit one of the critical environmental factors (B and D) or incorrectly state that changes in a particular factor do not require a recheck (B and C).
Related Questions
#462 While monitoring an impressed current cathodic hull protection system, which of the following measurements should remain constant in a properly operating electronically regulated system? #463 Referring to the impressed current cathodic hull protection system shown in the illustration, if required to control the impressed current to the anodes manually by using the hand adjustment potentiometer, what parameter should be maintained at a constant value? Illustration EL-0090 #465 In monitoring an impressed current cathodic hull protection system, it is important to insure that the propeller screw receive the same cathodic protection as the hull. What should be checked for? #466 What does the circuit shown in the illustration represent? Illustration EL-0085 #467 Which of the following statements represents an application of a silicon controlled rectifier?