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75. The engine manufacturer for the main engines used on your harbor tug specifies a supplemental coolant additive consisting of molybdate and nitrite be used to supplement the heavy-duty antifreeze for the closed, re-circulating freshwater cooling system. A test-strip comparison chart as shown in the illustration is used for coolant testing purposes. If the molybdate concentration color corresponds to row 2 and the nitrite concentration color corresponds to column B, what statement is true
The test strip indicates a molybdate/nitrite concentration of 1.0 SCA units per gallon, which is classified as low. Therefore, additional supplemental coolant additive is required.
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