更多"The interface between the liquid se"的相关试题:
[单项选择]In a purifier, the interface between the liquid seal and the oil should be positioned as close as possible to （）.
A. the outlet of oil
B. the outlet of water
C. the bowl periphery
D. the center of bowl
[单项选择]The deck water seal of the inert gas system（）.
A. cools the inert gas and prevents soot from entering the cargo tanks
B. acts as an emergency shutdown when inlet pressures exceed the safe working pressure
C. prevents the backflow of hydrocarbon gasses into nonhazardous areas
D. relieves sudden large overpressures in the system
[单项选择]The position of the interface between oil and water within the centrifuge is achieved by the use of （）.
A. gravity disc
B. centrifugal bowl
C. a stack of discs
D. main sealing ring
[单项选择]A high rate of separation between oil and water is favored by （）.
A. large size of oil globule
B. low temperature
C. high viscosity
D. high flow rate
[单项选择]An efficient seal between the cylinder block and cylinder heads on many diesel engines is obtained with（）
A. graphite packing
B. sealing compound
C. lubricating oil
D. gaskets
[单项选择]The distance between the surface of the water and the tidal datum is the （）.
A. range of tide
B. height of tide
C. charted depth
D. actual water depth
[单项选择]The difference in water spray pattern between the high-velocity tip and low-velocity applicator used with the all-purpose nozzle is due to（）.
A. a difference in water pressure
B. the method of breaking up the water stream
C. the length of the applicator
D. All of the above
[单项选择]Between the steam dram and the smaller water dram below, large numbers of smaller diameter （） tubes are fitted.
A. fire
B. water wall
C. generating
D. down comer
[单项选择]A wedge of water building up between the bow and nearer bank which forces the bow out and away describes（）.
A. bank cushion
B. bank suction
C. combined effect
D. bend effect
[单项选择]What type of liquid is used in the liquid P/V breaker（）.
A. Hydraulic oil
B. Water-antifreeze mixture
C. Distilled water
D. Oil from the cargo
[单项选择]When distilling salt water the cooling water discharging from the distiller is fed back to evaporator as feed water （）.
A. to cut down the amount of cooling water needed
B. to prevent an excess amount of cooling water from being discharged to the bilges
C. to supply hot water to the evaporator for more economical operation
D. None of the above is tree
[单项选择]When distilling sea water the cooling water discharging from the distiller is fed back to evaporator as feed water （）.
A. to decrease scale formation
B. for better cooling effect
C. for more economical purpose
D. to raise vacuum
[单项选择]A water pump can not supply water after startingIt may be caused by （）.
A. closed discharge valve
B. broken pipe line
C. worn shaft
D. both A and B
[单项选择]After stopping oily water separator, sea water should be permitted for （） minutes,（）should be closed after stopping pump to reduce oxidation corrosion of inner wall.
A. 15；inlet value
B. 15；inlet and outlet value
C. 30；inlet value
D. 30；inlet and outlet value
[名词解释]Bus Interface Unit BIU
[单项选择]The water level showing in a boiler water gauge glass is usually （） during working.
A. higher than the actual drum water level
B. equal to the actual drum water level
C. increasing due to steam condensation in the glass
D. lower than actual drum water level
[单项选择]The fresh water generator produces fresh water （）.
A. by cooling sea water
B. by heating sea water
C. by evaporation of sea water
D. by purifying sea water
