the heat compressed fuel/air mixture in the cylinder
the fuel igniter
the fuel injector
the fuel pump
第1题：
When fuel is injected late into a diesel engine cylinder_______.
A.the exhaust will be clear
B.fuel consumption will be low
C.all the fuel will be burned at top dead center
D.fuel consumption will be high
第2题：
quantity of fuel injected is decreased
quantity of fuel injected will always be increased
start of injection is advanced
duration of injection will always be greater
第3题：
Fuel droplets injected into a diesel engine cylinder must have adequate penetration to ____.
A.prolong the ignition delay period
B.ensure the beginning of fuel injection
C.thoroughly utilize the air charge
D.allow controlled fuel combustion
第4题：
feel the high pressure fuel line
check the cylinder exhausts for white smoke frequently
check the cylinder exhaust temperature
isolate each cylinder and inspect the injector
第5题：
spark plugs
glow plugs
heat of compression
a magneto
第6题：
Generally speaking, the fuel injected into a marine diesel engine combustion chamber is ignited by ______.
A.spark plugs
B.glow plugs
C.heat of compression
D.a magneto
第7题：
employing fuel oil as a cooling medium
preventing hard carbon deposit on nozzle tips
avoiding fuel oil temperature exceeding builder’s specification
ensuring good metallic contact between nozzles and cylinder heads
第8题：
Indirect cooling of fuel injector nozzle holders for diesel engines is accomplished primarily by
A.heat conduction into the injected fuel oil
B.heat conduction into the water jacket wall
C.water circulation through passages in the holder
D.fuel oil circulation through passages m the holder
第9题：
controlling the amount of fuel injected into the cylinders
varying the speed of the turbocharger
adjusting the compression ratio
changing the timing of the fuel injection camshaft
第10题：
Quantity of fuel injected tends to be decreased
Quantity of fuel injected will always be increased
Start of injection tends to be advanced
Duration of injection will always greater