A.125 mm
B.183 mm
C.215 mm
D.It depends on outside pipe diameter
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A.canister-type gas mask
B.fresh-air breathing apparatus
C.self-contained breathing apparatus
D.combustible gas indicator
A.One man report the fire, and the other two men fight the fire
B.One man report the fire, one man fight the fire, and one man evacuate and secure the area
C.One man report the fire, one man fight the fire, and one man act as a safety observer
D.All three men fight the fire and report it immediately after it is extinguished
A.holding its slops onboard until they can be pumped into the city sewer system
B.circulating them through the lube oil purifier to remove water and debris
C.holding its slops onboard until they can be discharged to a shore side reception facility
D.pumping them into a settling tank for separation before pumping the oily water residue overboard
A.locate the fire
B.determine which type of fire is burning
C.sound the alarm
D.fight the fire
A.flame relief valve
B.flame stopper
C.safety valve
D.flame arrester
最新試題
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
Which of the following items don’t belong to dock repair works?（）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
If separating effect is not good, which measure should be taken （）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
Using a file without a handle may result in （）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
The main purpose of port State control is not to（）