A.the expansion valve will move toward the wide open position
B.the expansion valve will move toward the closing position
C.the feeler bulb will conveys the high temperature
D.the superheat degree will raise
您可能感興趣的試卷
你可能感興趣的試題
A.move in an opening direction
B.move in a closing direction
C.either open or close
D.not move at all
A.help preheat the air for the furnaces
B.help preheat the feedwater
C.protect economizer from excessive heat
D.prevent excessive furnace heat losses
A.the bilges
B.the periscope
C.the water level
D.the oil pressure
A.excess stresses will not be set up in the boiler
B.the decks will not be covered with soot
C.the soot will be swept toward the uptakes
D.there will not be a loss of steam pressure
A.bottom-blow valve
B.skin valve
C.feed-check valve
D.feed-stop valve
最新試題
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
Under MARPOL Code the ship to which it applies has to carry （）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
To proceed to the assistance of a ship in distress is（）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
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（）
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