Bends in the piping
Slowing the pumping rate
Pipeline valves
Backing rings for pipe welds
第1题：
Movement of liquid in a tank when a vessel inclines causes an increase in ______．
A.Righting arm
B.Metacentric height
C.Height of the uncorrected KG
D.Natural rolling period
第2题：
What is classified as a combustible liquid ________．
A.Acetaldehyde
B.Ethyl alcohol
C.Carbon tetrachloride
D.Tetramethylene glycol
第3题：
What is the function of the after-coolers installed in the diesel engine air intake system?
A.Decrease the air density
B.Increase the exhaust temperature
C.Decrease the lube oil temperature
D.Increase the air density
第4题：
What are three valid reasons to assign ports to VLANs on a switch? （）
第5题：
What type of stern tube bearing has the least friction ________．
A.Oil-lubricated bearings
B.Lignum vitae
C.Hard rubber
D.Bronze bushings
第6题：
What is a wet cargo ________．
A.A liquid cargo carried in the deep tanks
B.A canned or bottled liquid such as beer
C.A cargo that contains hygroscopic moisture
D.A cargo particularly susceptible to damage by moisture
第7题：
What best describes benzene ________．
A.Clear colorless liquid with an acrid odor
B.Clear colorless liquid with an aromatic odor
C.Brownish liquid，odorless
D.Brownish liquid，with an acrid odor
第8题：
When referring to dry bulk cargoes，the term "flow state" ______.
A.designates the state of a commodity when the ship is heeled past the angle of repose
B.relates to the suitability of loading a cargo by flowing down inclined chutes
C.refers to the saturation of a dry bulk product with water to the point where it acts as a liquid
D.relates to the minimum granule size of a particular product where it will flow like a liquid at an angle of 30°
第9题：
What are two benefits for prospects, derived from the Cisco SBR Methodology?（）
第10题：
A network administrator is viewing the control plane traffic flowing through their network in real-time. What built-in feature enabled this ability?（）