单项选择题
A.An adjacent storeroom，containing spare parts B.A storeroom directly above，containing combustible fluids C.An adjacent storeroom，containing mattresses and linen D.An adjacent storeroom，marked "Stewards Stores"
Which item may be substituted for，in the fireman’s outf...
单项选择题Which item may be substituted for，in the fireman’s outfit，on a cargo vessel?（）
A.fire ax B.flashlight C.rigid helmet D.flame safety lamp
Which extinguishing agent will cool down a heated bulkh...
单项选择题Which extinguishing agent will cool down a heated bulkhead in the least amount of time?（）
A.Water stream B.Water fog or apray C.Steam D.Dry chemical
When loading or discharging dry mud or cement，crew memb...
单项选择题When loading or discharging dry mud or cement，crew members should use goggles and（）.
A.facial respirator mask B.ear plugs C.rubberized boots D.fireman's outfit
