單項選擇題The purpose of a preventer as it is used on a conventional yard and stay cargo rig is to（）.

A.allow greater than normal loads to be handled by the gear
B.act as an inboard guy in the event the inboard guy parts during cargo handling
C.assist the outboard guy in supporting stresses during cargo handling
D.prevent the inboard guy from parting due to stresses during cargo handling


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1.單項選擇題The preventer guy，as used on a conventional yard and stay rig，（）.

A.is rigged at an angle of 70°to 90°from the guy it assists
B.takes the strain imposed on the schooner guy when burtoning cargo
C.is rigged when lifting cargo that exceeds the SWL of a single whip
D.should take the strain if the regular guy parts

2.單項選擇題The payment proportionate to the part of the voyage accomplished or to the part of the cargo delivered is referred as（）.

A.advance freight
B.back freight
C.dead freight
D.pro rata freight

3.單項選擇題The patches where rust have been removed should be wiped clean before paint is（）.

A.applied
B.supplied
C.replied
D.complied

4.單項選擇題The necessity of the segregation of cargoes is determined by（）.

A.experience from practice
B.various types of cargoes
C.different types of ships
D.personal abilities

5.單項選擇題The National Cargo Bureau represents the（）.

A.agent
B.operator
C.shipper
D.All of the above