A、slight acidity
B、slight alkalinity
C、excessive alkalinity
D、excessive acidity
更多“A diesel engine cooling water system with a pH factor of 30 indicates a condition of （）.”相关的问题
A、Cooling water is alkalescence B、cooling water is acidity C、cooling water has salinity D、cooling water has impurity
A、immediately open all crankcase relief ports B、increase crankcase exhauster speed to draw cool air into the engine C、allow the engine to cool naturally D、increase crank case scavenge air to remove unburned gases
A、air binding of the engine cooling system B、a cracked water cooled exhaust manifold C、blockage in the heat exchanger D、faulty operation of the thermostat
A、radiated through the engine block B、transferred to water cooled cylinder walls C、conducted through the piston crown D、transferred to escaping exhaust gases
A、Defective temperature controls in the system B、Cavitation in the cooling water pump C、Opened vent in the cooling system D、Restricted water passages in the engine
A、conducted through the engine block B、conducted to water cooled cylinder walls C、conducted through the piston crown D、loss to escaping exhaust gases
A、stop the engine immediately to prevent damage B、increase lube oil pressure C、slow the engine allowing it to gradually cool D、decrease the cooling water it temperature to the water jacket
A、reduce lube oil temperature B、raise exhaust temperature reduce C、excessive heating of engine room D、reduce load on cooling water pump
A、maintain low pH in the cooling water B、reduce the cooling water temperature C、increase cooling water hardness D、form a protective film on metal surfaces
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