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单选题 Smaller engines can be made more rigid than large ones and may not have________
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
______ fitted to engines have to deal with wide load ranges and they cannot be efficient at all loadsA. BlowerB. TurbochargersC. CrossheadD. Piston
题目3单选题
__________valves which can be operated from outside the machinery space must be fitted to all tanks and to the main inlet to the engineA. Quick openingB. Slow closingC. Quick closingD. Slow opening
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
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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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