海船船员考试
单选题In a diesel engine, excessive cylinder liner wear will cause （） Ⅰ.increased blow-by Ⅱ.wear between the piston ring and grooveA Ⅰonly is correctB Ⅱ only is correctC both Ⅰ and Ⅱ are correctD neither Ⅰ or Ⅱ are correct
题目
Ⅰonly is correct
Ⅱ only is correct
both Ⅰ and Ⅱ are correct
neither Ⅰ or Ⅱ are correct
参考答案和解析
相似问题和答案
第1题：
One cylinder of a diesel engine is persistently knocking and does not cease(停止) when the fuel supply to that cylinder is secured.Which of the following problems may be the cause?
A.Low loading of the cylinder
B.Excessive cooling of that piston
C.Sluggish ring action on the piston
D.A mechanical defect in a working part
第2题：
clogged fuel injection pumps
increased cylinder liner wear
intake valve stem corrosion
varnish deposit on pistons
第3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
解析：scraper：刮刀;groove：槽
译文：柴油机漏气指的是燃气通过压缩环(气环)和刮油环泄漏。
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：
liquid in the cylinder
low compression in the cylinder
high exhaust temperature
poor fuel penetration
第6题：
clogged coolant passages
a leaking cylinder head gasket
low fuel oil pressure
worn or broken cylinder liner sealing rings
第7题：
starting the engine while hot
knurling the piston skirt
operating the engine overheated
scuff resistant piston rings
第8题：
If a diesel engine turned over freely but failed to start, the cause could be ________.
A.water in the fuel
B.cold lube oil
C.excessive starting air pressure
D.excessive fuel pressure
第9题：
electrical overload
surging at governed RPM
loose engine mounting bolts
coolant leaking into the cylinder
第10题：
(1) only is correct
(2) only is correct
both (1) and (2) are correct
neither (1) or (2) axe correct