Where is the cooling water from the compensating tank in the cooling water system of main engine lead to?（）
1、The cooling water is in direct contact
The cooling water is in direct contact with the outer surface of the liner as a result of which it is termed a （）.Awater linerBwet linerCdry linerDdrown liner
2、When distilling sea water the cooling
When distilling sea water the cooling water discharging from the distiller is fed back to evaporator as feed water （）.Ato decrease scale formationBfor better cooling effectCfor more economical purposeDto raise vacuum
3、If the cooling water temperature and t
If the cooling water temperature and the lube oil temperature in a diesel engine are too high, the cause can be （）Aa dirty lube oil strainerBinternal water leaksCan oil suction line restrictionDexcessive wears of the cooling water pum
4、When to remove scale from the cooling
When to remove scale from the cooling spaces, acid solution （） in the system can be tested from time to time by putting some on to a piece of lime.AstrengthBdenseCpercentageDvelocity
Where is the woman from?A Japan.B England.C Australia.
6、The cooling water temperature （） over
The cooling water temperature （） over a period of 8 hours, and then shut down.Ashould be gradually increasedBshould be gradually reducedCshould be constantly keptDshould be varied up and dow