A.three barrels
B.four barrels
C.six barrels
D.eight barrels
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A.procedures for accepting cargo securing devices
B.procedures for maintaining and repairing cargo-securing devices
C.record of cargo securing device inspections
D.All of the above
A.a tug comes alongside while the tanker is loading grade
B.and E cargoes B. a large,fresh oil spill is discovered immediately adjacent to the side of the tanker
C.there is an electrical storm in the vicinity
D.there is a fire on the dock or on a nearby vessel
A.was experienced
B.were experienced
C.has experienced
D.have experienced
A.rotor blades and landing gear
B.unloading of passengers
C.loading of cargo
D.pilot's visibility
A.prevent the generation of flammable or combustible gas in tanks
B.blow out cargo lines to prevent the build up of gas concentrations
C.dilute tank atmospheres to keep gas concentrations below the lower explosive limit
D.prevent fires in the pumproom by continually displacing flammable vapors
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A heavy,thick-walled tube,usually steel,used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its performance is called a().
An inert gas system on a tanker should be used to().
Cargo transfer operations on a tank vessel need NOT be stopped when().
Permanent magnetism is caused by().
A frame with two,or sometimes four,arms through which are threaded the guidelines and which is used to keep the drill stem and bit in line with the center opening in the temporary guide base is the().
A fire pump may be used for other purposes if().
A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?()
A safe fuel system must().
It is not necessary to declare()in the Health List.
A large basin cut into the shore,closed off by a caisson,and used for dry docking of ships is known as a().