A.increasing the linear velocity of the exhaust gases
B.changing directions of exhaust gas flow
C.decreasing the temperature of the exhaust gases
D.accelerating the exhaust gas through a reduced size orifice
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A.change from heavy fuel oil to diesel oil for mail engine
B.pumping oil bilge water
C.change sea chest form high level one to lower one
D.test emergency generator
A.The cetane number has no affect on injection lag
B.The cetane number is an indication of the fuel’s viscosity
C.Ignition lag is reduced with fuels having a high cetane number
D.The cetane number is of little significance in the combustion
A.Ignition lag increases
B.Lube oil system pressure increases
C.Brake specific fuel consumption increased
D.Mechanical efficiency increaded
A.atop the piston crown
B.beneath the piston crown
C.at the base of the piston skirt
D.inside the cylinder liner cooling water jacket
A.the ship security plan
B.the company security plan
C.the port security plan
D.the national security plan
最新試題
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
Which of the following items don’t belong to dock repair works?（）
The cetane rating of diesel fuel is an indication of the （）
The shipboard oil pollution emergency plan will be invalid after （）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
Using a file without a handle may result in （）