单选题A common occurrence when a vessel is running into shallow water is that（）.A the wake is less pronouncedB the vessel is more responsive to the rudderC squat will cause a decrease in bottom clearance and an increase in draftD All of the above

A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started?

A.When the towing vessel enters the fog

B.When the drilling rig enters the fog

C.When the towing vessel can no longer be seen from the rig

D.Immediately

What is meant by the term "broaching to"?

A.Having the vessel head toward the sea

B.Running before a sea

C.Being turned broadside to the sea

D.Having the vessel filled with water

You are running into danger,________.

A.shallow water ahead of you

B.submerged wreck ahead of you

C.risk of collision imminent

D.A,B,C are all right

材料：

When expenses are incurred the liability under this insurance shall not exceed the proportion of such expenses that the amount insured hereunder bears to the value of the Vessel as stated herein，or to the sound value of the Vessel at the time of the occurrence giving rise to the expenditure if the sound value exceeds that value．Where the Underwriters have admitted a claim for total loss and property insured by this insurance is saved，the foregoing provisions shall not apply unless the expenses of suing and labouring exceed the value of such property saved and then shall apply only to the amount of the expenses which is in excess of such value．

When a claim for total loss of the Vessel is admitted under this insurance and expenses have been reasonably incurred in saving or attempting to save the Vessel and other property and there are no proceeds，or the expenses exceed the proceeds，then this insurance shall bear its pro rata share of such proportion of the expenses，or of the expenses in excess of the proceeds，as the case may be，as may reasonably be regarded as having been incurred in respect of the Vessel，but if the Vessel be insured for less than its sound value at the time of the occurrence giving rise to the expenditure，the amount recoverable under this clause shall be reduced in proportion to the under-insurance．

问题：

Of the following，_______ only is correct．

A.The stated value of the vessel is always higher than its ensured value

B.The sound value of the vessel at the time of the occurrence is always higher than its ensured value

C.The sound value of the vessel at the time of the occurrence is always higher than its stated value

D.The sound value of the vessel at the time of the occurrence is always higher than its saved value

Assuming the sound value of the vessel at the time of accident is $10 millions，the insured value $9 millions，the stated value $8 millions，the expense incurred $2 millions，the liability under this insurance is likely to be _______．A.$2.0 millions

B.$1.8 millions

C.$1.6 millions

D.$1.4 millions

Under afore-said conditions，assuming the expense of suing and labouring is $3 millions，the proceeds $2 million，and the Underwriter has admitted a claim for total loss，the liability under this insurance is likely to be _______．A.$0.9 million

B.$0.8 million

C.$1.0 million

D.$2.0 millions

Under previous conditions，assuming the saved value is $1 million，the expense of suing and labouring $3 millions，and the Underwriter has admitted a claim for total loss，the liability under this insurance is likely to be _______．A.$2.0 millions

B.$1.8 millions

C.$1.6 millions

D.$1.4 millions

请帮忙给出每个问题的正确答案和分析，谢谢！

There is a ______ when one or more vessels are towing or pushing another vessel or vessels，provided that they are all involved in commercial activities and not in a salvage operation．

A.private safety

B.private maritime adventure

C.common safety

D.common maritime adventure

When is the density of the water required to be logged in the logbook of a ship?

A.Any time the vessel moves from water of one density into waters of a different density

B.Prior to getting underway when the vessel is floating in fresh or brackish water

C.Only when the vessel moves from fresh water into salt water

D.The density of the water is not required to be logged in the unofficial logbook

Maritime Declaration of Health is generally prepared by the Master ______．

A.when his vessel is arriving at a foreign port

B.when his vessel is leaving a foreign port

C.after his vessel has left a foreign port

D.after his vessel has arrived at a port

The term of Landfall means ________ ．

A.Land first sighted when vessel approaching from seaward

B.Land last sighted when vessel leaving from a port

C.in sight of one another when vessel underway

D.in sight of an island during a ship on her voyage

For GMDSS，when may a compulsory vessel not be allowed to leave port ________．

A.When the vessel is in an overloaded condition

B.When the vessel has arranged for both duplication of equipment AND shore-based maintenance

C.When the vessel has replaced a required piece of GMDSS-related equipment but its performance has not been verified or logged

D.When the vessel is carrying only two licensed GMDSS Radio Operators and is capable of performing all required functions

Concerning the identification signal for a pilot vessel, in fog, which statement is TRUE?___.

A.When at anchor, the pilot vessel is only required to sound anchor signals

B.The identification signal must be sounded any time the pilot vessel is underway

C.The pilot vessel may only sound the identity signal when making way

D.All of the above