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航海英語救生設(shè)備單項(xiàng)選擇題每日一練(2019.01.15)

單項(xiàng)選擇題
On a ship，a fixed carbon dioxide or other approved system must be installed（）.
A.where oil or chemical drums are stored
B.in all battery storage locations
C.in paint lockers
D.in all of the above locations
單項(xiàng)選擇題
On a ship，a cabinet or space containing the controls or valves for the fixed firefighting system must be（）.
A.posted with instructions on the operation of the system
B.ventilated and equipped with explosion-proof switches
C.painted with red and black diagonal stripes
D.equipped with a battery powered source of emergency lighting
單項(xiàng)選擇題
The boat command that means complete the stroke and level the oars horizontally with the blades trimmed fore and aft is（）.
A.Oars
B.Up oars
C.Way enough
D.Hold water
單項(xiàng)選擇題
Oily rags stored in a pile that is open to the atmosphere are a hazard because they may（）.
A.deteriorate and give off noxious gasses
B.spontaneously heat and catch fire
C.attract lice and other vermin and serve as a breeding ground
D.None of the above
單項(xiàng)選擇題
On a ship，watertight doors should be operated（）.
A.during abandon drill
B.during fire drill
C.weekly
D.when the rig is being moved