單項(xiàng)選擇題When a vessel navigates in an area with a small underkeel clearance but with adequate space to take avoiding action she（）.

A.should not be regarded as a vessel constrained by her draught
B.should be regarded as a vessel constrained by her draught
C.shall be regarded as a vessel restricted in her ability to maneuver
D.should be regarded as a non-displacement vessel


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1.單項(xiàng)選擇題In order for a vessel to be engaged in fishing she must be（）.

A.underway
B.using gear which extends more than 50 meters outboard
C.using a seine of some type
D.using gear which restricts her maneuverability

2.單項(xiàng)選擇題In ballasting to survival draft，while in transit，due to extreme wind and wave loads，thrusters or propulsion，if available，should be used to（）.

A.reduce windward mooring tensions
B.maintain vessel heading
C.maximize accelerations
D.increase speed of advance

3.單項(xiàng)選擇題The effect known as bank cushion acts in which of the following ways on a single-screw vessel proceeding along a narrow channel? （）

A.It forces the bow away from the bank
B.It forces the stern away from the bank
C.It forces the entire vessel away from the bank
D.It heels the vessel toward the bank

4.單項(xiàng)選擇題In towing it is desirable for the tug and the vessel to ride wave crests simultaneously because（）.

A.shock loading on the tow line is reduce
B.towing speed is improved
C.the vessel is more visible from the tug
D.the catenary of the tow line is reduced

5.單項(xiàng)選擇題As a vessel falls off the wind from close-hauled to a beam reach，the tendency for the vessel to move sideways through the water will（）.

A.increase
B.decrease
C.change only if the vessel comes about on the opposite tack
D.not change

6.單項(xiàng)選擇題In order to back a right-handed，single-screw vessel in a straight line，you will probably need to use（）.

A.very little rudder
B.some left rudder
C.some right rudder
D.full left rudder

8.單項(xiàng)選擇題A vessel，which is unable to maneuver due to some exceptional circumstance，shall exhibit （）.

A.during the day，three balls in a vertical line
B.during the day，three shapes，the highest and lowest being balls and the middle being a diamond
C.when making way at night，two all-round red lights，sidelights，and a sternlight
D.when making way at night，masthead lights，sidelights，and a sternlight

9.單項(xiàng)選擇題It is easier to dock a right-hand，single-screw vessel（）.

A.starboard side to the wharf
B.either side to the wharf
C.port side to the wharf
D.stern to the wharf