Vessel in distress（）indicate their pos

1、Which display indicates a vessel condu

Which display indicates a vessel conducting mineclearance operations（）.AThree balls in a vertical lineBTwo balls in a vertical lineCOne ball near the foremast and one ball at each yardarmDOne diamond near the foremast and one ball at each yardarm

2、（）indicates the weight of the vessel a

（）indicates the weight of the vessel and is,therefore,according to a well known principle of physics,equal to the weight of the water it displaces.AGross tonnageBNet tonnageCDisplacement tonnageDDeadweight tonnage

3、Gross tonnage indicates the vessel’s（）

Gross tonnage indicates the vessel’s（）.Adisplacement in metric tonsBtotal weight including cargoCvolume in cubic feetDthe volume of the enclosed space

4、They handed in their paper（）

They handed in their paper（）Ain lineBby turnCat turnDin tur

5、A vessel in distress should send by ra

A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the（）.Adistress positionBspoken words "Mayday，Mayday，Mayday"Cship's nameDship's call letter

6、You can indicate that your vessel is i

You can indicate that your vessel is in distress by（）.Adisplaying a large red flagBdisplaying three black balls in a vertical lineCsounding four or more short rapid blasts on the whistleDcontinuously sounding the fog whistle