A.turn it off for five minutes every half-hour
B.turn it off and on at five-minute intervals
C.turn it off during daylight hours
D.leave it on continuously
您可能感興趣的試卷
你可能感興趣的試題
A.steamer will drift stern downwind
B.tug will drift faster than the steamer
C.tug should approach stern to
D.tug should approach from downwind
A.with puncture wounds
B.when all other means have failed
C.when the victim is unconscious
D.to prevent bleeding from minor wounds
A.at a high rate of speed
B.under oars
C.against the wind
D.with the wind
A.V-shaped ripple with the point of the V pointing upstream
B.V-shaped ripple with the point of the V pointing downstream
C.small patch of smooth water on a windy day
D.smoothing out of the vessel's wake
A.administer oxygen
B.immediately check his pulse and start CPR
C.make the victim comfortable in a bunk
D.immediately give a stimulant,by force if necesssary
最新試題
You are proceeding to a distress site.The survivors are in liferafts.What will make your ship more visible to the survivors().
If an airplane circles a vessel 3 times,crosses the vessel’s course close ahead while rocking the wings,and heads off in a certain direction,what does this indicate().
When a rescue vessel approaches a lifeboat in heavy seas,the person in charge of the lifeboat should().
Course directed by the OSC or CSS to be steered at the beginning of a search is().
()is a/an aircraft used in SAR.
The self-contained breathing device should not be used in which situation().
Generally speaking,the most favorable bottom for anchoring is().
HM Coastguard is primarily()for the initiation and co-ordination of civil maritime SAR operations in the UK.
All the traces are()old ones.
In case of your steering gear failed,()should be exhibited in shapes or lights.