A.pressure
B.velocity
C.gravity
D.viscosity
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A.the temperature
B.the viscosity
C.the gravity
D.the size
A.water level
B.water flow
C.temperature
D.pressure
A.flat
B.slat
C.sweet
D.acid
A.starters
B.pressure switches
C.pressure
D.water
A.forced circulating pump
B.compressed air
C.gravity tank
D.bead tank
最新試題
The main purpose of port State control is not to（）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
The shipboard oil pollution emergency plan will be invalid after （）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.