A.10
B.7
C.4
D.1
您可能感興趣的試卷
你可能感興趣的試題
A.open air-box drains
B.loss of cooling water to the diffuser
C.gradual fouling of the air filters
D.improperly timed exhaust valves
A.concentrations of calcium sulfate in the boiler water
B.fuel oil in the feed water
C.improper treatment of the feed water with calcium sulfate
D.excessive feed water alkalinity
A.High oxygen concentration
B.Low pH
C.Proper alkalinity
D.All of the above
A.525 RPM
B.775 RPM
C.1550 RPM
D.1800 RPM
A.low firing pressure and low exhaust temperatures
B.low firing pressure and normal exhaust temperatures
C.high firing pressure and low exhaust temperatures
D.high firing pressure and high exhaust temperatures
最新試題
In a simple mechanical governor, the （）.
An automated diesel engine should normally shut down due to （）
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
The main purpose of the piston oil scraper rings is to （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
To determine if the lube oil filter elements need changing, （）.