2a652 Quizzes & Trivia

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2a652 Questions & Answers


On which type of metal can you leave corrosion as long as the component is operational?
IAW CDC 2A652 vol 1 pg 5-3, copper is the one exception, because as long as it is doing its function, patina (green particles) actually forms a protective coating around the copper surface, and actually stops corrosion.
What is also reduced when a lubricant reduces friction?
One primary function of a lubricant is to reduce the friction between moving parts. This means that the lubricant must reduce the resistance that is associated with relative motion and reduce wear, as well as reduce the heat that is generated by fric
When a line is to be disconnected you
According to volume 4 of theCDC's, the correct answer is: "Ensure there is no pressure in the system."The question has been deleted from CDC volume 4 edition, it would be wise to consult a valid source for the correct answer.
What is the wattage of a circuit with 28 volts applied and a total resistance of .2 ohms (n a series circuit)?
Wouldn't actually be 3.92 Watts instead of KW since we're trying to solve for watts and the equation to solve is P=E^2/R (Power=Volts Squared divided by Resistance) or did I miss a part where you have to convert to KW?
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