A、sea water
B、scavenging air
C、lubricating oil
D、fuel oil
更多“The cooling of the piston is carried out by circulating （） across the underside of the crown and inside the ring belt or through specially shaped passages.”相关的问题
A、A.cooling water of the cooling system B、B.fuel of the FO system C、C.LO of the LO system D、D.cooling water of the cooling system and LO of the LO system
A、discharge side of the centrifugal pump B、suction side of the centrifugal pump C、the lowest point of the cooling water system D、inlet of the main engine
A、water cooling B、oil cooling C、air cooling D、combined cooling
A、the temperature of the hydraulic fluid B、the flow rate of the hydraulic fluid C、the temperature of the cooling water D、all of the above
A、Because the piston is exposed to very high temperature, it must be cooled B、The lower the piston cooling temperature is, the better it is C、Both water and lube oil can be used as coolant D、One of the piston cooling methods is vibration cooling, with better effect
A、increase the amount of cooling water to the condenser B、decrease the amount of cooling water to the condenser C、add more refrigerant to the system D、remove some of the refrigerant from the system
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、Air will enter the cooling system B、Carbon will plug the water cooled exhaust manifolds C、The jacket water temperature will rise D、The lube oil viscosity will increase
A、Cooling water is alkalescence B、cooling water is acidity C、cooling water has salinity D、cooling water has impurity
A、Maintains a constant head on the system B、Reduces the likelihood of air or steam pockets formation C、Provides a low pressure point for the addition of makeup cooling water D、All of the above
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