(1) only is correct
(2) only is correct
both (1) and (2) are correct
neither (1) or (2) are correct
第1题：
exhaust gas pressure
exhaust gas temperature
speed
load
第2题：
the pressure of the starting air is high enough
there is enough air in the air reservoirs
the air is supplied into the cylinders in the appropriate sequence
all of the above
第3题：
The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by_______.
A.large conical springs
B.compressed air pressure
C.hydraulic pressure
D.exhaust gas pressure
第4题：
reduce mean effective pressure
decrease average compression pressure
decrease air charge density
increase power output
第5题：
starting air pressure
scavenge air pressure
over-speed trip
banjo oiler line
第6题：
Holding the valve open for a long period
Increasing the starting air pressure used
Opening the stating air valve quickly
Reducing the starting air valve size
第7题：
internal crankshaft passages
immersion in oil
splash lubrication
injection lubrication
第8题：
Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger? .
A.Reduce engine speed to idle before removing the filter
B.Soak the dirty filter in kerosene only
C.Blow out the air inlet with compressed air
D.Cover the air inlet after removing the filter
第9题：
an air start cam
cylinder compression pressure
starting air pressure
valve springs
第10题：
both of them are ignited by compressed air
both of them are the forms of external combustion engines
both of them have spark plugs
the power is developed by the piston in the cylinder