题目内容
（请给出正确答案）
If the piston ring gap remains insufficient when installing new rings, you should＿.
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
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（由简答题聘请的专业题库老师提供的解答）
更多“If the piston ring gap remains insufficient when installing new rings, you should＿.A.insta”相关的问题
If the back clearance of a piston ring is excessive, .
A.compression pressure in the cylinder will be higher
B.carbon will accumulate behind the ring
C.combustion gases will penetrate beneath the ring land
D.piston side thrust will be increased
The carbon deposits on the piston crown and in the ring grooves _____.
A.should be scraped
B.should be derusted
C.should be drilled out
D.to be brushed off
The lowest ring of a piston is _____.
A.a coil spring
B.a sealing ring
C.an oil distributor ring
D.main seal ring
A diesel engine piston ring face is in direct contact with the _____.
A.top of the ring groove
B.cylinder liner oil film
C.bottom of the ring groove
D.back of the ring groove
A．coil spring
B．a sealing ring
C．an oil distributor ring
D．main seal ring
A.upwards / inwards
B.upwards / outwards
C.downwards / inwards
D.downwards / outwards
A.is coming upward, cylinder ring belt
B.is going downward, piston ring belt
C.is coming upward, piston ring belt
D.is going downward, cylinder ring belt
For any piston ring to operate smoothly without scuffing ,the ring must be ______.
A.of a material harder than the cylinder liner
B.properly lubricated
C.prevented from compressing
D.prevented from rotating during engine operation
A.piston crown
B.piston ring groove
C.piston skirt
D.piston ring area
Ring groove inserts are occasionally used on aluminum alloy piston to_______.
A.reduce the ring groove wear rate
B.seal against crankcase vapors
C.lessen the wear on aluminum part of the cylinder
D.allow for the greater expansion rate of aluminum
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