reciprocating at the piston pin, rotary at the crank pin
reciprocating at the crank pin, rotary at the piston pin
straight reciprocation
straight rotation
第1题：
less even torque
higher cylinder head temperatures
fewer power strokes per revolution
greater weight/size requirements
第2题：
camshaft beatings
main bearings
piston crowns
cylinder walls
第3题：
All diesel engines are classified as ______．
A.Four cycle
B.Compression ignition
C.Vacuum ignition
D.External combustion
第4题：
of crosshead type
of trunk piston type
of low speed type
all the above
第5题：
cylinder liners and piston rings
main bearings
crankpin bearings
turboblower
第6题：
rotary；reciprocating
up and down；fore and aft
fore and aft；up and down
up and down；rotary
第7题：
chromium plating piston rings
knurling the piston skirt
extended maximum power operation
applying load to a cold diesel engine
第8题：
the lubricating oil consumption
the turbine blade temperature
the flow rate of fuel
scavenge air pressure
第9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10题：
they are more heavily built
the fuel used is less volatile
they can be easily reversed
they operate at a lower speed