【名词&注释】
螺旋桨(propeller)、动力装置(power plant)、工作效率(work efficiency)、符合规定(conforming to prescribed)、理论中心线(theoretical centerline)、增压器转子(blower rotor)
[单选题]增压器自带油泵工作的可靠性与其安装质量有关,安装时应保证()。
A. A.油泵的位置准确
B. B.油泵轴线与增压器转子(blower rotor)轴线垂直
C. C.油泵轴线与转子轴线平行
D. D.油泵轴线与转子轴线同轴
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学习资料:
[单选题]船舶能量利用效率与()有关。Ⅰ.动力装置的热工完善程度;Ⅱ.推进装置的工作效率;Ⅲ.船体状态和航行条件
A. Ⅰ+Ⅱ
B. Ⅰ+Ⅱ+Ⅲ
C. 仅Ⅰ对
D. 仅Ⅱ对
[单选题]轴系理论中心线(theoretical centerline)是()的定位安装基准。
A. 螺旋桨
B. 舵系
C. 中间轴
D. 主机
[单选题]桨叶上C区位于桨叶表面0.7R以外的部分,其内的缺陷通常允许()修理,但其工艺应符合规定。
A. 有机胶黏剂
B. 无机胶黏剂
C. 金属扣
D. 焊补
[单选题]螺旋桨0.4R以内的缺陷()修理。
A. 可焊补
B. 不可焊补
C. 一般不可焊补
D. 可采用喷焊
[单选题]If () are taken at regular intervals, any unequal distribution of load will be easily found out.
A. differential of crank-webs
B. indicator diagrams
C. lube oil reading out
D. misalignment of crank-throw
[单选题]The lube oil cooler is located after the lube oil filter in order for ()
A. the filter to operate more efficiently
B. the lube oil cooler to be bypassed
C. positive lube oil pump suction to be assured
D. galvanic action in the cooler to be minimized
[单选题]Increasing the valve clearance between a valve stem and rocker arm, will result in the valve ()
A. closing later
B. opening sooner
C. staying open for a shorter period of time
D. staying open for a longer period of time
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