单项选择题

A.causes colloid suspension in the cooling waterB.reduc……

The most serious effect of air trapped in a diesel engine jacket water cooling system is that it（）.

A.causes colloid suspension in the cooling water
B.reduces the capability of the lubrication system
C.can form pockets which block the flow of coolant through the system
D.leads to the scuffing of cylinder walls

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热门试题

单项选择题The engine in a covered lifeboat is fueled with（）.

A.kerosene
B.unleaded gasoline
C.diesel oil
D.liquefied gas

单项选择题Sudden unloading of a diesel engine can cause（）.

A.decreased fuel efficiency
B.increased exhaust temperature
C.black smoke
D.overspeed trip

单项选择题Storage batteries on T-Boats must be located（）.

A.in sight of the main engine(s)
B.in a tray lined with suitable material that resists damage from the electrolyte
C.in locked closets with restricted ventilation
D.near the bilge to lower the center of gravity and improve stability

单项选择题Please supply my vessel（）120 tons of diesel oil.

A.for
B.with
C.to
D.on

单项选择题Overspeed of the diesel engine driving an electric generator could cause（）.

A.low voltage trip
B.reverse power trip
C.damage to windings
D.excessive exhaust temperatures