cylinder liners and piston rings
main bearings
crankpin bearings
turboblower
第1题：
Vessels required to be equipped with an approved backfire flame arrester are ______．
A.Those with diesel engines
B.All those with gasoline engines
C.Those with large engines only
D.None of the above
第2题：
stiffen the bedplate in way of the main bearings to increase the engines longitudinal strength
accept most of the tensile loading that results from the firing forces developed during operation
mount the engine frame securely to the hull to prevent shaft coupling misalignment
connect the crosshead solidly to the piston rod
第3题：
Cylinders of marine diesel engines are normally cooled by ___ .
A.sea water
B.fine mineral oil
C.sanitary water
D.fresh water
第4题：
Blank off the exhaust gas inlet to the damaged turbocharger
Secure cooling and lubrication to the damaged turbocharger
Lock the rotor of the damaged turbocharger
All of the above
第5题：
Diesel engines have more advantages in comparison with gasoline engines
Diesel engines have more advantages in comparison to gasoline engines
Gasoline engines have more advantages in comparison with diesel engines
Gasoline engines have more advantages in comparison to diesel engines
第6题：
inefficiency
oiliness
detergency
purity
第7题：
of crosshead type
of trunk piston type
of low speed type
all the above
第8题：
Modern marine diesel engines equipped with mechanical fuel injection operate on a combustion phase within the cycle which is ______.
A.entirely constant pressure
B.entirely constant temperature
C.a combination of constant volume and constant pressure
D.a combination of constant temperature and constant pressure
第9题：
facilitate bi-directional operation
provide the greatest pump efficiency
prevent pump clogging from marine growth
prevent cavitation at the pump outlet
第10题：
sea water
fine mineral oil
sanitary water
fresh water