單項(xiàng)選擇題

Each part of the fire-main system located on an exposed deck must be（）.

A.protected against freezing
B.locked to prevent theft
C.numbered sequentially
D.pressurized at all times

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Each hose in the fuel transfer system for helicopter refueling must meet the standards of the（）.

A.Federal Aviation Administration
B.Corps of Engineers
C.National Fire Protection Association
D.National Transportation Safety Board

單項(xiàng)選擇題

Each hand portable fire extinguisher must be marked with（）.

A.the name of the vessel on which it is located
B.the date that it was installed
C.the names of the individuals qualified to use it
D.an identification number