航海英语固体散装危险品与BC规则单项选择题每日一练(2018.07.16)

单项选择题
An “atoll cloud” forming over an island due to heating of the land during the daytime would be which type? （）
A.Cirrus
B.Cumulus
C.Stratus
D.Nimbus
单项选择题
（）is the most liable to spontaneous combustion.
A.Cement
B.Chinaware
C.Fish meal
D.Steel products
单项选择题
An advantage of using chain lashing on heavy vehicles aboard Ro-Ro vessels is that it（）.
A.has long life
B.is light weight
C.absorbs shock
D.has fine adjustment
单项选择题
An icebreaker assisting a vessel through an ice field would display a visual signal consisting of the code letter “E” (Echo) to signify that “（）”.
A.I am altering my course to starboard
B.I am altering my course to port
C.I am operating astern propulsion
D.My vessel is stopped and making no way through the water
单项选择题
All Loran-C transmitting stations are equipped with cesium frequency standards which permit （）.
A.every station in one chain to transmit at the same time
B.each station to transmit without reference to another station
C.on-line transmission of single-line transmitters at the same time
D.each station to only depend on the master for synchronization and signal ratio