slightly less than atmospheric pressure
approximately equal to exhaust manifold pressure at all times
that is widely fluctuating constantly
decreasing as engine load increases
第1题：
principle
principal
cause
case
第2题：
ignition lag
engine horsepower
lube oil system pressure
specific fuel consumption
第3题：
My ship’s engine responds well to telegraph orders and takes about 80 seconds to reverse from full speed ahead to full speed astern. This sentence ______.
A.indicates the engine’s particulars
B.tells the engine’s function
C.shows the engine’s type
D.refers to the engine’s information
第4题：
bearing pressure in a four-stroke/cycle acting single diesel engine is continually reversed
bearing pressure in a two-stroke/cycle single acting diesel engine is continually reversed
the maximum bearing pressure is higher in a single acting two-stroke/cycle diesel engine
two-stoke/cycle diesel engines require more complicated lubrication piping
第5题：
Exhaust temperature
Lube oil level
Lube oil pressure
Water level in the expansion tank
第6题：
cylinders
exhaust valves
pistons
fuel valves
第7题：
increasing the quantity of starting air
increasing the lube oil pressure
heating the engine fuel supply
heating the engine coolant
第8题：
Which of the following conditions is realized by the turbo-charging of a previously naturally aspirated diesel engine?
A.Ignition lag increases.
B.Lube oil system pressure increases.
C.Brake specific fuel consumption increases.
D.Mechanical efficiency increases.
第9题：
most critical in a four-stroke cycle diesel engine
most critical in a two-stroke/cycle diesel engine
most critical in a four-stroke/cycle diesel engine if it is turbocharged
of equal importance in a two-stroke/cycle diesel engine as in a four-stroke/cycle diesel engine
第10题：
Increases efficiency
Increases engine horsepower
Increases engine life
Reduces engine horsepower