a reduction
an increase
an outing
a downwards
第1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2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：
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5题：
reduce lube oil temperature
raise exhaust temperature reduce
excessive heating of engine room
reduce load on cooling water pump
第6题：
remains the same
is reduced
is increased
is eliminated
第7题：
water
babbitt
iron or steel
acids
第8题：
When transmitted by a reduction gear, diesel engine speed is reduced and the torque available for work
A.remains the same
B.is reduced
C.is increased
D.is eliminated
第9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10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