List some visual and audible distress signals for attracting attention when in

16.   What is the sound alarm for abandoning vessel? 7 short blasts and 1 prolonged blast for l minute.

19.   When will the expanding square search usually be used?

Ditto同卜

20.   List some visual and audible distress signals for attracting attention when in

flare,orange smoke,body language and so on.

21.   Would you please pronounce the correct international code words for aAw, *8% UC"9 "D"？

Alfa,Bravo,Charlie,Delta

22.   By regulation, what is the minimum amount of water required per person in the lifeboat?

Separate from the air or cut off the supply of oxygen.

24. What reason would you think is justified for postponing the fire drill to a more suitable time?

keeping a twenty-four hours watch.

lie DSC distress alert can carry out ship-to-ship, ship to shore and shore to ship distres^many sea

area.

Course directed by the OSG»or other authorized person to be steered at the beginning of a search.