航海英语各种英文申请书单项选择题每日一练(2019.07.28)

单项选择题
How could lashing gear used aboard Ro-Ro vessels be stowed when not in use? （）
A.Drape along brackets
B.Leave in place while back loading cargo to save time
C.Hang vertically in the paint locker
D.All of the above
单项选择题
A drawbridge may use visual signals to acknowledge a vessel’s request to open the draw. Which signal indicates that the draw will NOT be opened immediately?（）
A.A flashing amber light
B.A fixed red light
C.A white flag raised and lowered vertically
D.A flashing white light
单项选择题
A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a flame（）.
A.stopper
B.screen
C.filter
D.restrictor
单项选择题
（）any sick person on board now apart from the above-mentioned cases?
A.Have
B.Has
C.Is there
D.Are there
单项选择题
A hand held instrument used to measure distances between objects and the ship is a（）.
A.vernier
B.psychrometer
C.hygrometer
D.stadimeter