更多"A wedge of water building up betwee"的相关试题:
[单项选择]Your ship is in shallow water and the bow rides up on its bow wave while the stern sinks into a depression of its transverse wave system.What is this called（）.
A. Broaching
B. Fish tailing
C. Squatting
D. Parallel sinkage
[单项选择]（） allows for expansion and water make up in the water cooling system.
A. A top tank
B. A head tank
C. A head valve
D. A drain tank
[单项选择]Water may boil up around the stern of a vessel in a channel due to（）.
A. slack water when upbound
B. shallow water
C. a cross current
D. a head current
[单项选择]WEDGE是以下（）实体形成的命令。
A. 圆锥
B. 圆柱
C. 楔形
D. 球形
[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]In plugging submerged holes on a vessel，rags，wedges，and other materials should be used in conjunction with plugs to（）.
A. reduce the water pressure on the hull
B. reduce the water leaking around the plugs
C. prevent progressive flooding
D. reduce the possibility of stress fractures
[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
[单项选择]调用WEDGE命令创建的实体模型有（）个顶点。
A. 4
B. 5
C. 6
D. 8
[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]What is the bow type anchor shackle primarily used for（）.
A. Chain to chain connections
B. Chain to anchor connections
C. Kenter link to anchor connections
D. Wire rope connections
[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
[单项选择]Mooring with two bow anchors has which major advantage over anchoring with one bow anchor? （）.
A. The vessel will not reverse direction in a tidal current
B. The radius of the vessel's swing will be shortened
C. A mooring approach may be made from any direction
D. The vessel will not swing with a change in wind
[单项选择]（） water is more expensive than fresh water It has high specific heat and low viscosity.
A. Distilled
B. Distilling
C. Boiling
D. Boiled
[单项选择]The oil （） in the discharging water from oil water separator exceeds 15 PPM without alarm, because the coil was burnt out.
A. filter
B. hole
C. pollution
D. content
[单项选择]（） is the production of pure water from sea water by evaporation and re-condensing.
A. Evaporation
B. Circulation
C. Condensation
D. Distillation
