A. 6.0 to 7.5 B. 8.0 to 9.5 C. 10.0 to 11.5 D. 12.0 to 13.5 « Previous Next »
Home motor USCG 404. The pH value of water in a diesel engine closed cooling water system should be maintained between_________. A. 6.0 to 7.5 B. 8.0 to 9.5 C. 10.0 to 11.5 D. 12.0 to 13.5 « Previous Next »
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