【名词&注释】
螺旋桨(propeller)、中心线(center line)、柴油机气缸套(engine cylinder liner)、用柴油机
[单选题]为了检验螺旋桨的螺距,测量时应测出()。Ⅰ.螺旋桨的半径;Ⅱ.桨叶厚度;Ⅲ.各半径截面局部螺距;Ⅳ.各桨叶平均螺距;Ⅴ.螺旋桨总螺距。
A. Ⅰ+Ⅲ
B. Ⅰ+Ⅱ+Ⅳ+Ⅴ
C. Ⅲ+Ⅳ+Ⅴ
D. Ⅰ+Ⅱ+Ⅲ+Ⅳ
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学习资料:
[单选题]Sulzer6RTA84型船用柴油机气缸套最大内径增量为3.6mm,则最大缸径为()。
A. 87.6mm
B. 843.6mm
C. 687.6mm
D. 80.4mm
[单选题]轴系中心线产生同轴度偏差主要是由于()造成。
A. 艉轴管过度磨损
B. 艉轴过度磨损
C. 曲轴过度磨损
D. 艉轴承过度磨损
[单选题]由于螺旋桨的()失效会导致船舶剧烈振动。
A. 桨叶严重腐蚀
B. 桨叶严重磨损
C. 桨叶变形
D. 某一桨叶折断
[单选题]热校正舵杆时,加热温度一般不超过()℃。
A. 550
B. 650
C. 750
D. 850
[单选题]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
[单选题]With regards to a diesel engine crankcase explosion, the most violent is the()(1) primary explosion(2) secondary explosion
A. (1) only
B. (2) only
C. both (1) and (2)
D. neither (1) or (2)
[单选题]How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?()
A. One
B. Two
C. Four
D. Eight
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