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单选题 In a trunk engine the cylinder-lubrication is done by the oil mist thrown up by_________.(图)
学科：轮机英语
时间：2024-06-25 06:56:17
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题目1单选题
The cetane number of a diesel fuel oil indicates it's_________A. heating valueB. viscosityC. ignition qualityD. acid content
题目2单选题
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题目3单选题
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题目4单选题
Which term describes piston pins having bearing surfaces in both the piston bosses and connecting rod eyeA. Semi-floatingB. Full floatingC. StationaryD. Free rolling
题目5单选题
Smaller engines can be made more rigid than large ones and may not have________A. through boltsB. connecting rodsC. crankshaftD. crankcase
题目6单选题
The depth of fuel oil in a tank is normally measured through the _________A. feed lineB. overflow lineC. sounding tubeD. vent line
题目7单选题
For the diesel oil supply line of incinerator , mesh size for strainer is max. ______A. 55-75 umB. 50-70 umC. 60-75 umD. 50-75 um
题目8单选题
Before the lubricating oil is entered into the system again, it must be purified by the ________ in the drain tank.(图)A. purifierB. separatorC. strainerD. Cleaner
题目9单选题
In a trunk engine the cylinder-lubrication is done by the oil mist thrown up by_________.(图)A. the piston rodB. the camshaftC. the crankD. the oil pump
题目10单选题
In addition to planned maintenance requirements and circumstances permitting, crankshaft deflections are to be taken at each ________A. piston removalB. piston replacementC. cylinder replacementD. dry-docking
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