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单选题
On the top of the cylinder is mounted the cylinder cover which is pressed onto （） of the cylinder liner by means of nuts and studs.
A
the camshaft
B
the flange
C
the ridge
D
the bulge
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break in the most worn part of the cylinder when the rings expandC
wear eccentrically on the side opposite the end gapD
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单选题Fix the fuel injector into （） after repair.A
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feel the high pressure fuel lineB
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单选题Blow-off of the relief valves of the main cylinders during operation indicates （）.A
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单选题In each cylinder cover is a large central opening for mounting （）A
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the starting valveC
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单选题In order to inspect both piston and cylinder wall thoroughly, the cylinder cover should be taken off and the piston should be （）.A
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单选题Each cylinder is closed at the top by a （）, made of a special heat-resistant steel.A
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单选题The joint face between the cylinder cover and the liner is arranged （）the combustion process as possible.A
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单选题（）during the last repair?A
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a leaking cylinder linerD
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cylinder linerC
piston crownD
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refrigerantD
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单选题The cylinder covers and the liners are bolted together by means of （）.A
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studs screwed into the cylinder frames
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opening the exhaust portsB
placed on top of the engine along its centerlineC
farthest from the cylinder headD
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check cylinder lubricationB
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