A、A.the lubricating pumps are stopped and the access doors are opened
B、B.the lubricating pumps are running and the access doors are opened
C、C.the engine is running and the access doors are closed
D、D.the engine is stopped and the access doors are closed
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A、open the filter and inspect the elements B、check the lube oil pump discharge pressure C、check the lube oil header pressure D、check the pressure drop across the filter
A、The oil temperature is less than the cooling water temperature B、The oil pressure is less than the cooling water pressure C、The oil pressure is greater than the cooling water pressure D、The oil flow control valve is always installed in the oil input line
A、High lube oil pressure B、High jacket water pressure C、High jacket water temperature D、Low jacket water pressure
A、A.Both seamless mild steel and copper may be used for middle pressure steam B、B."hpair" means high pressure air C、C.The feed piping of the boilers can be made of seamless mild steel D、D.All oil pipings are made of mild steel
A、increase the fuel oil temperature B、decrease the fuel oil temperature C、decrease the fuel oil supply pressure D、increase the air supply
A、increase the fuel oil temperature B、decrease the fuel oil temperature C、decrease the fuel oil supply pressure D、increase the air supply
A、A.boiling and cavitations; low temperature B、B.boiling and cavitations; pressurized C、C.leaking and boiling; low temperature D、D.leaking and boiling; pressurized
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