单选题The bilge main is arranged to drain any watertight compartment （） ballast, oil or water tanks and to discharge the contents overboard.A rather thanB other thanC in addition thatD except for

Vessels having main engines arranged for air starting are to be provided with at least__.

A.one automatic drain serving both containers

B.two air starting containers of approximately equal size

C.one control air container and one starting air container

D.one additional means of starting the main engine

If a crewman suffers a second-degree burn on the arm，you should ______.

A.drain any blisters

B.apply antiseptic ointment

C.scrub the arm thoroughly to prevent infection

D.immerse the arm in cold water

(A)arranged to

(B) arranged of

(C) arranged in

(D) arranged with

What is the purpose of limber holes ________．

A.To allow for air circulation

B.To allow for stress and strain in rough waters

C.To allow water in the boat to drain overboard

D.To allow water in the bilge to get to the boat drain

When received the order "Finished With Engine", which of the following operations is wrong?

A.stop the L.O pump, S.W pump, jacket water cooling pump immediately

B.stop the F.O booster pump

C.engage the turning gear, turn the main engine

D.open the main engine scavenge air trunk's drain cocks

Regulations define the bulkhead deck as ______．（subdivision and stability regulations）

A.any deck extending from stem to stern

B.the uppermost deck to which transverse watertight bulkheads extend

C.the lowermost deck to which transverse watertight bulkheads extend

D.the uppermost complete deck

Accidental flooding of the engine room bilges by the bilge main is prevented by( ).

A.stop-check valves installed in the bilge suction manifolds

B.using a positive displacement reciprocating bilge pump

C.installing educators in all bilge rose boxes

D.installing a swing check before each bilge valve