海船船员考试
单选题The highest loads applied to the diesel engine crankshaft main bearings are （）A axial loadsB firing loadsC inertia loadsD centripetal loads
题目
axial loads
firing loads
inertia loads
centripetal loads
相似问题和答案
第1题：
Planetary gear set
Torsional vibration damper
Friction clutch
Air bladder clutch
第2题：
slow-speed diesel
medium-speed diesel
high-speed diesel
constant-speed diesel
第3题：
An increase in load on a diesel engine results in _____ of speed of the crankshaft.
A.a reduction
B.an increase
C.an outing
D.a downwards
第4题：
increase thermal efficiency
cause clogging of the fuel system
increase the ability of the engine to start in cold weather
produce corrosion in the cylinder and exhaust system at low loads
第5题：
placed as near the crankpin axis as possible
removed each time the crankshaft is repositioned
left in place for all four readings
reset to zero for all four readings
第6题：
tension load twice each crankshaft revolution
compression load during power and compression strokes
inertia load once every four crankshaft revolutions
bending loads at bottom and top dead center
第7题：
one half crankshaft speed in a two-stroke cycle diesel engine
crankshaft speed in a two-stroke cycle diesel engine
two times crankshaft speed in a two-stroke cycle diesel engine
one-fourth times crankshaft speed in a four-stroke cycle diesel engine
第8题：
once every crankshaft revolution
once every two crankshaft revolutions
once every piston stroke
twice every piston stroke
第9题：
overloading the engine
low exhaust valve lift
excessive cylinder cooling
insufficient mechanical clearance
第10题：
heavy carbon deposits will buildup on the valves and in the exhaust
fuel dilution is increased at low load
exhaust valves may be damaged
all of the above