A.control the fluid flow through it
B.prevent the pressure before it over the specified valve
C.make the pressure after it steady
D.control the direction of oil flow
您可能感興趣的試卷
你可能感興趣的試題
A.control the back pressure of return oil
B.lock the oil lines under some conditions
C.change the direction of oil flow
D.act as relief valve
A.direction of oil flow
B.back pressure of return oil
C.bypass of filter
D.high pressure overflow
A.Too much sludge accumulated in separator bowl
B.Diameter of gravity disc too large
C.High level tank lack of water
D.Oil input too rapidly
A.Oil temperature too high
B.Diameter of gravity disc too large
C.Oil temperature too low
D.High level tank out of water
A.Oil inlet valve opening too quickly
B.Oil temperature too high
C.Diameter of gravity disc too small
D.Viscosity of oil too low
最新試題
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated()
To shut down a diesel engine after it exceeds the set maximum speed,which type of device listed should be used?()
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the()
The main purpose of port State control is not to()
When does auxiliary burner of incinerator put into operation? ()Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
Which one is NOT the ‘clear grounds’ for a more detailed inspection?()
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to ()
To proceed to the assistance of a ship in distress is()
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a()
Cold weather starting of a diesel engine may be made easier by()