What term indicates a curvature of the decks in a longitudinal direction?（）

The heavier outboard strake of deck plating on a ship is called the deck（）.

Before loading bulk grain，bilge wells must be covered to（）.

Atmospheres laden with coal dust or grain dust caused by loading these cargoes（）.

I（）rather not shift the rice to Hatch No.2.

On a vessel，the keel is the primary strength member of the lower hull form in which direction?（）.

Ship’s officers should check every cargo compartment after it is filled with bulk grain to ensure（）.

In Hatch No.3 the cargo（）bulk is peaked．

In a transversely framed ship，the transverse frames are supported by all of the following EXCEPT（）.

A venetian vent or rice ventilator is used in stowage of which cargo?（）.