單項(xiàng)選擇題When preparing a ship for heavy weather，fuel oil day tanks should be（）.

A.pumped overboard to calm the seas
B.drained to the lower hull to reduce free surfaces
C.filled to ensure that sufficient fuel oil is available during a lengthy emergency
D.partially drained to increase free surfaces in order to reduce motions


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1.單項(xiàng)選擇題When a vessel is swinging from side to side off course due to quartering seas，the vessel is （）.

A.broaching
B.pitchpoling
C.rolling
D.yawing

2.單項(xiàng)選擇題When a deck cargo is secured with chain or wire lashings and grab (pear) links，which statement is FALSE?（）

A.The amount of take-up is limited by the length of the turnbuckle
B.At the grab (pear) link，the slack end of chain should be led back and secured to the chain above the link
C.The lashings should be inspected each day and any slack taken up
D.The turnbuckle should be secured with a stick or lock nuts

3.單項(xiàng)選擇題What indicates that a tropical cyclone may be within 500 to 1，000 miles of your position?（）

A.A pumping of the barometer up and down a few millibars
B.A sudden wind shift from southwest to northwest followed by steadily increasing winds
C.The normal swell pattern becoming confused，with the length of the swell increasing
D.An overcast sky with steadily increasing rain from nimbostratus clouds

4.單項(xiàng)選擇題To prevent damage by and to storage batteries aboardsmall passenger vessels they should be located（）.

A.in trays constructed of material that is resistant to the electrolyte
B.so as to prevent movement when the vessel pitches and rolls
C.in a well ventilated area
D.All of the above

5.單項(xiàng)選擇題The vertical movement of a vessel in the water is called（）.

A.pitch
B.sway
C.heave
D.roll