A.Injection pressures
B.Control air supply pressure
C.Cooling water flow through after-coolers
D.Lube oil temperature
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A.treating with oxygen scavengers
B.securing the boiler and giving it a blowing down
C.increasing the pH
D.reducing the phosphate level
A.caustic embrittlement of the boiler metal
B.acidic corrosion of the boiler metal
C.hard scale deposits on the boiler tubes
D.etching of the heat exchange surfaces
A.assist in a quick cutoff of fuel injection
B.allow oil backflow from the injector to the helix
C.reduce fuel oil pressure between injection strokes
D.meter the quantity of fuel delivered
A.10
B.7
C.4
D.1
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
最新試題
The highest pressure in a diesel engine cylinder normally occurs （）.
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 （）.
White smoke exhausting from an operating diesel engine may indicate （）.
In a simple mechanical governor, the （）.
A diesel engine piston ring face is in direct contact with the （）.
A thrust bearing is used with a propulsion diesel engine to （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
What is the function of the thrust bearing?（）
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.