更多"In navigation the abbreviation “DF”"的相关试题:
[单项选择]The period of a lighted aid to navigation refers to the（）.
A. date of construction or establishment
B. length of time between flashes of the light
C. time required for the longest flash of each cycle
D. time required for the light to complete each cycle
[单项选择]The abbreviation L.W.R.P. on the navigation maps means（）.
A. low water reference plane
B. low winter runoff point
C. least water river plane
D. land wall reference point
[单项选择]The abbreviation TDC means （）.
A. top dead center
B. temperature difference center
C. time delay dock
D. top diesel company
[单项选择]The abbreviation BDC means （）.
A. Boston Diesel Company
B. base circle diameter
C. switch board case
D. bottom dead center
[单项选择]SOLAS is the abbreviation of（）.
A. International Maritime Dangerous Goods Carried by Sea
B. International Code for the Construction and Equipment of Ships Carrying Gases in Bulk
C. International Convention for the Safety of Life at Sea
D. International Regulations for Preventing Collisions at Sea
[单项选择]What’s the abbreviation for the World Meteorological Organization?（）
A. WMO
B. IHO
C. IMO
D. WARC
[单项选择]The abbreviation RYC in a marine cable generally stands for（）.
A. referring to your crew
B. reference for your captain
C. return to your cabin
D. received your cable
[单项选择]Displacement refers to the（）.
A. cubic capacity of a vessel
B. deadweight carring capacity of a vessel
C. gross tonnage of vessel
D. number of long tons of water displaced by a vessel afloat
[单项选择]Short cycling of a refrigeration compressor refers to （）.
A. frequently grounding out
B. frequently starting and stopping
C. running too fast
D. running too slow
[单项选择]Bulk cargo refers to（）.
A. cargo which occupies a large volume of space
B. cargo which requires refrigeration
C. cargo which is very dense
D. homogeneous cargo not enclosed in a container
[单项选择]Current refers to the（）.
A. vertical movement of the water
B. horizontal movement of the water
C. density changes in the water
D. None of the above
[单项选择]Filler cargo refers to（）.
A. durable packages
B. small pieces
C. the cargo in which the voids appear
D. the cargo suitable for stowage in void spaces
[单项选择]The abbreviation C0W in tanker operations stands for（）.
A. crude oil washing
B. coming off wreck
C. crew on watch
D. cold of wind
[单项选择]What does the abbreviation VHF stand for?（）
A. Vessel's Hoisting Flag
B. Very High Safety
C. Vessel's Homing Frequency
D. Very High Frequency
