狭水道与冰区航行

08.4 狭水道、冰区与运河航行目录8

[2301]Your vessel is approaching a bend. You hear a prolonged blast from around the bend. You should ______.

A. back your engines

B. stop your engines and drift

C. answer with one prolonged blast

D. sound the danger signal

KEY: C你船正在接近一个湾头。在湾头附近你听到一长声。你应回答一长声。同原题库0002

[2302]The principal danger from ice collecting on a vessel is the______.

A. decrease in capabilities of radar

B. decrease in displacement

C. adverse effect on trim

D. loss of stability

KEY: D船上结冰的最大危险是稳性损失。

[2303]Which will most likely occur when entering shallow water?

A. Rudder action will become more effective.

B. The vessel's list will change.

C. The vessel's trim will change.

D. An increase in speed will occur.

KEY: C当船舶进入浅水时，什么将最可能发生？船舶的吃水差将变化

[2304]You are on an ice-reinforced vessel about to enter pack ice. You should ______.

A. enter the pack on the windward side where there is a well defined ice edge---边缘明显的上风一侧

B. trim to an even keel or slightly down by the bow to take maximum benefit of the ice reinforcement

C. take maximum advantage of coastal leads caused by offshore winds

D. look for areas of rotten ice and enter perpendicular to the ice edge

KEY: D你所在的冰区加强船将要进入浮冰群。你应寻找蜂窝冰的区域并垂直于冰的边缘进入。

[2305]A flashing green light displayed at a single lock means that the lock is ______.

A. ready for entrance

B. ready for entrance，but gates cannot be closed completely

C. being made ready for entrance

D. not ready for entrance

KEY: A单一船闸上显示的闪绿灯光意味着船闸已经准备好进入。

[2306]A flashing red light displayed at a single lock means that the lock ______.

A. is ready to use but vessels must stand clear

B. is ready to use and vessels may approach

C. cannot be made ready immediately and vessels shall stand clear

D. cannot be made ready immediately but vessels may approach

KEY: C单一船闸上显示的闪红灯光意味着船闸不能立即准备好并且船舶应让开。

[2307]A SEA ROOM TO BE KEPT FOR SAFETY AROUND A VESSEL，ROCK，PLA TFORM，ETC.，OR THE PLACE ASSIGNED TO A VESSEL WHEN ANCHORED OR LYING ALONGSIDE A PIER，ETC means ______.

A. Port

B. Commercial area

C. Berth

D. Roadstead

KEY: C为船舶，岩石，平台等或当船舶锚泊或靠码头时指定给船舶的宽广海面意思是停泊处。

[2308]A situation has occurred where it becomes necessary for you to be towed. What action should be taken to prevent your vessel from yawing?

同原题库1649

A. Shift weight to the bow

B. Shift weight to the center of the boat

C. Shift weight to the stern

D. Throw excess weight overboard

KEY: C发生一种情形致使你船有被拖带的需要。你应采取什么措施以防止艏摇？移动重量到船艉

[2309]A stream of water immediately surrounding a moving vessel's hull，flowing in the same direction as the vessel is known as ______.

同原题库3526

A. directional current—方向流

B. forward current—正向电流

C. propeller current—推进器尾流

D. wake current

KEY: D一股直接围绕于运动的船体，流向与船的运动方向一致的水流被称为尾流（伴流，迹流）。

[2310]A stretch where the channel changes from one side of the river to the other is called a ______.

A. crossing

B. transit

C. transfer

D. passing

KEY: A航道自河的一边改变到另一边的一段距离叫做横越。

[2311]A strong back refers to a ______. 同原题库2608

A. bar securing a cargo port

B. centerline vertical bulkhead---垂直舱壁中心线

C. deep beam---加强横梁

D. spanner stay---两吊杆柱之间的横牵缆

KEY: A强力背板指的是加固舷侧装货门的材料。

[2312]A tide is called diurnal when ______. 同原题库3520

A. only one high and one low water occur during a lunar day

B. the high tide is higher and the low tide is lower than usual—高低潮高比平常的更高和更低

C. the high tide and low tide are exactly six hours apart—高低潮之间精确相差6个小时

D. two high tides occur during a lunar day—在一个太阴日内发生两个高潮

KEY: A在一个太阴日（约24时50分太阳时）内仅发生一次高潮和一次低潮的潮汐叫全日潮。