chromium plating piston rings
knurling the piston skirt
extended maximum power operation
applying load to a cold diesel engine
第1题:
Diesel engine blow-by is the leakage of combustion gases past the( ).
A.oil rings only
B.compression and scraper rings
C.cylinder liner sealing
D.cylinder liner ring grooves
第2题:
clogged coolant passages
a leaking cylinder head gasket
low fuel oil pressure
worn or broken cylinder liner sealing rings
第3题:
An efficient seal between the cylinder block and cylinder heads on many diesel engines is obtained with________.
A.graphite packing
B.sealing compound
C.lubricating oil
D.gaskets
第4题:
starting the engine while hot
knurling the piston skirt
operating the engine overheated
scuff resistant piston rings
第5题:
less even torque
higher cylinder head temperatures
fewer power strokes per revolution
greater weight/size requirements
第6题:
Diesel engines are started by supplying into the cylinders in the appropriate sequence for the required direction.
A.cooling water
B.compressing air
C.compressed air
D.cylinder oil
第7题:
clogged fuel injection pumps
increased cylinder liner wear
intake valve stem corrosion
varnish deposit on pistons
第8题:
Each cylinder liner on the marine medium speed engines _____.
A.is usually cooled by sea water
B.can be replaced when worn out
C.is in direct contact with the water in the bore of the cylinder
D.can t expand when heated
第9题:
the column
the jacket
cylinder cover
cylinder liner
第10题:
inefficiency
oiliness
detergency
purity