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【简答题】
微型机中的软件盘、硬盘、光盘都是计算机的____。
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皮皮学刷刷变学霸
举一反三
【单选题】If over a period of time, the oi1 film partially disappears, so that dry areas are formed on the cylinder wall, these areas and the piston surfaces will by frictional interaction, become finely scuffe...
A.
micro-seizure
B.
sticking
C.
scratched
D.
breakage/collapse
【单选题】If the compression rings on a diesel engine piston become stuck in the ring groove, the cause may be due to ______________.
A.
excessive ring action
B.
excessive ring temperature
C.
improper ring rotation
D.
excessive ring face wear
【单选题】If the piston ring gap remains insufficient when installing new rings, youshould（）
A.
install oversized rings
B.
hone the cylinder liner to allow ring installation
C.
compress the rings tighter with a compressing tool
D.
file the ends of the rings
【单选题】If due to thick and hard deposits of carbon, the piston rings cannot move freely in their grooves, dark areas will often appear on the upper part of the cylinder wall (may not be the risible at port i...
A.
micro-seizure
B.
sticking
C.
scratched
D.
breakage/ollapse
【单选题】If due to thick and hard deposits of carbon, the piston rings cannot move freely in their grooves, dark areas will often appear on the upper part of the cylinder wall (may not be the risible at port i...
A.
micro-seizure
B.
sticking
C.
scratched
D.
breakage / collapse
【单选题】If the piston groove drain holes for the oil control rings become clogged, which of the following is likely to occur?
A.
The oil control rings will seal improperly and wear rapidly
B.
The piston will overheat due to insufficient lubrication
C.
Excessive oil will remain on the cylinder wall
D.
Light brown smoke will emanate from the engine exhaust
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