A.prevent engine overheating
B.have proper air/gasoline fuel mixture ratio
C.be liquid- and vapor-tight
D.supply sufficient air to the intake manifold
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A.When dead in the water，it is often difficult to find the neutral position and slight headway or sternway may result
B.When going directly from full ahead to full astern，there is complete steering control
C.When the vessel has headway and the propeller is in neutral，there is no effect on rudder control
D.When maneuvering in port，full ahead or astern power can usually be obtained without changing shaft RPM
A.annular blowout preventer
B.annulus
C.accumulator
D.automatic choke
A.flame arrestor
B.flame screen
C.detonation arrestor
D.detonation blocker
A.slipway
B.graving dock
C.ground warp
D.caisson dock
A.a 2-second blast every 20 seconds
B.a 4-second blast every 20 seconds
C.an 8-second blast every 30 seconds
D.a 10-second blast every 30 seconds
最新試題
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 obstruction on a helodeck is any object that might present a hazard to the（）.
A helmsman receives the command “Right 15 degrees rudder.”The helmsman’s IMMEDIATE reply should be（）.
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（）.
How could lashing gear used aboard Ro-Ro vessels be stowed when not in use? （）
A fishing vessel displaying the lights shown is（）.
A fishing vessel casualty must be reported to the Coast Guard if it involves（）.
A green buoy has a yellow triangle on it. This is a(n)（）.
It is not necessary to declare（）in MARITIME HEALTH DECLARATION.
Permanent magnetism is found in（）.