單項選擇題The disinfection of various compartments in a vessel by filling them with a gaseous agents to destroy rats etc.means().

A.fire drills
B.washing and cleaning
C.fumigation
D.quarantine


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題Progressive flooding on a ship is controlled by securing watertight boundaries and().

A.transferring drill water
B.dumping bulk materials
C.pumping out flooded compartments
D.evacuating the unit

2.單項選擇題When a vessel is stationary and in a hogging condition,the main deck is under().

A.compression stress
B.tension stress
C.shear stress
D.racking stress

4.單項選擇題In vessel construction,beam brackets are triangular plates that join the deck beam to a().

A.bulkhead
B.frame
C.stanchion
D.deck longitudinal

5.單項選擇題Oceangoing dry bulk cargo vessels over 1000 GT must have approved combination-type fire nozzles at all().

A.fire stations aboard the vessel,except for those in open deck areas weatherdeck and cargo hold fire stations
B.interior fire stations
C.engine room fire stations
D.all of the above

6.單項選擇題Transverse frames are more widely spaced on a ship that is designed with the().

A.centerline system of framing
B.isometric system of framing
C.longitudinal system of framing
D.transverse system of framing

7.單項選擇題In any case the draught of the vessel at the()shall not be less than that which is necessary to obtain full immersion of the propeller.

A.forward perpendicular
B.amidships
C.longitudinal center of floatation
D.after perpendicular

8.單項選擇題When a wind force causes a floating ship to heel to a static angle,the().

A.centers of buoyancy and gravity are in the same vertical line
B.righting moment equals the wind-heeling moment
C.downflooding point is below water
D.deck-edge immersion occurs

9.單項選擇題Lighter longitudinal stiffening frames on the vessel side plating are called().

A.stringers
B.side frames
C.side stiffeners
D.intercostals

10.單項選擇題Most very large ocean going vessels,such as bulk carriers and large tankers,tend to squat().

A.by the bow
B.by the stern
C.at the end nearest the bottom
D.evenly fore and aft