A ship helicopter landing deck on which fueling operations are conducted must have a fire protection system that is capable of discharging at 100 psi pressure a foam spray of at least（）.
1、The helicopter deck of a ship must be
The helicopter deck of a ship must be marked with the units identification，appropriate aiming circles，and a continuous line on the perimeter which is（）.A8 inches wideB16 inches wideC24 inches wideD32 inches wide
2、On a semisubmersible ship，reserve buoy
On a semisubmersible ship，reserve buoyancy is increased by the presence of void spaces above the waterline in the（）.Asubmerged hullsBquartersCcolumns and upper structureDsubmerged connecting structure
3、Deck beams on a vessel are generally s
Deck beams on a vessel are generally spaced at equal intervals and run（）.AlongitudinallyBverticallyCtransverselyDintermittently
4、A large oil fire on the deck of a ship
A large oil fire on the deck of a ship can be fought most effectively with（）.Adry chemicalBfoamChigh-velocity fogDwater
5、Each ship shall carry on board a ship
Each ship shall carry on board a ship security plan approved by （）Athe chief engineer officerBthe master of the shipCthe manager of the companyDthe Administratio
6、The deck loads on a ship are distribut
The deck loads on a ship are distributed through the deck beams to the（）.AframesBhullCstringersDplate