海船船员考试
单选题When a diesel engine is operate at partial load, as compared to full load ,a decrease will occur in the average （）A air quantity aspiratedB fuel injection pressureC combustion pressure on the power strokeD compression on the compression stroke
题目
air quantity aspirated
fuel injection pressure
combustion pressure on the power stroke
compression on the compression stroke
参考答案和解析
相似问题和答案
第1题：
The Chief and 3rd Engineers went below，changed the fuel to diesel oil and reduced the engine to slow ahead．This sentence implies all those below except that ________ ．
A.the Engine was not on slow ahead before Chief and 3rd Engineers went down
B.the Engine was using diesel oil before Chief and 3rd Engineers went down
C.the Engine was using fuel oil before Chief and 3rd Engineers went down
D.the Chief and 3rd Engineers went into the Engine Room to operate the Engine
第2题：
ignition lag
engine horsepower
lube oil system pressure
specific fuel consumption
第3题：
An increase in load on a diesel engine results in _____ of speed of the crankshaft.
A.a reduction
B.an increase
C.an outing
D.a downwards
第4题：
lower the no-load RPMs
provide more air for combine with the fuel
increase the no-load RPMs
provide more fuel combine with the air
第5题：
tension load twice each crankshaft revolution
compression load during power and compression strokes
inertia load once every four crankshaft revolutions
bending loads at bottom and top dead center
第6题：
regulating the speed of the turbocharger
rotating the fuel injector pump plunger
regulating the speed of the fuel oil transfer pump
changing engine timing
第7题：
reduce lube oil temperature
raise exhaust temperature reduce
excessive heating of engine room
reduce load on cooling water pump
第8题：
In a main propulsion turbocharged diesel engine, the speed of the turbocharger varies according to the _____.
A.governor droop
B.speeder spring tension
C.fuel rack lag
D.load on the engine
第9题：
prevent engine back pressure at heavy loads
increase total engine efficiency at low loads
prevent boiler corrosion at low engine loads
improve engine fuel consumption at any load
第10题：
cold intake air
excessive compression pressure
excessive cylinder lubrication
a light load