A.bilge water may enter the exhaust pipe
B.entry of air may cause vapor lock
C.carbon monoxide may enter the interior of the vessel
D.the joint gaskets may be blown
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A.string
B.stand
C.joint
D.standpipe
A.break glass，pull valve，break glass，pull cylinder control
B.sound evacuation alarm，pull handle
C.open bypass valve，break glass，pull handle
D.open stop valve，open control valve，trip alarm
A.you are entering a space containing poisonous vapors
B.you are entering a space containing explosive gases
C.the regulator of the breathing apparatus malfunctions
D.the face piece of the breathing device is too tight
A.Crescent
B.Sheath-screw boom
C.Quadrantal
D.Radial
A.flow of petroleum through pipes
B.spraying or splashing of petroleum
C.settling of solids or water in petroleum
D.All of the above
最新試題
Limit switches are used on which davits?（）
The rudders are amidships and both screws are going ahead. What will happen if the starboard screw is stopped?（）
The C02 flooding system is actuated by a sequence of steps which are（）.
The holding capability of an anchor is primarily determined by the（）.
Centrifugal pumps have what advantage(s) over reciprocating pumps?（）.
In relation to cargo gear，what does SWL mean?（）.
As the propeller turns，voids are formed on the trailing and leading edges of the propeller blades causing a loss of propulsive efficiency，pitting of the blades，and vibration. These voids are known as（）.
The function of the bypass valve on the self-contained breathing apparatus is to（）.
In ship construction，frame spacing is（）.
If the engine of a survival craft does not start，check to see（）.