【名词&注释】
增压器(turbocharger)、动力装置(power plant)、排气阀(exhaust valve)、排水量(displacement)、安全操作规程、不符合(inconformity)、可靠性。、固定物(fixture)、总重量(total weight)
[单选题]排气阀阀面磨损严重时,采用()修复。
A. 研阀
B. 更换气阀
C. 堆焊
D. 堆焊阀座
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学习资料:
[单选题]已知某船排水量为2OOO0t,主机有效功率为10O00kW,主机重量为350t,动力装置总重量(total weight)为8O0t,则该船动力装置的单位重量为()kg/kW。
A. 35
B. 80
C. 40
D. 17.5
[单选题]贮备可以提高可靠性,它和其他提高可靠性方法的原则区别,在于可使系统的可靠性()部件本身的可靠性。
A. 高于
B. 低于
C. 相当于
D. 等于
[单选题]拆装螺母时,不符合安全操作规程的是()。
A. 一手抓住固定物(fixture)
B. 另一手力用推
C. 少用套筒或梅花扳手
D. 根据需要增加扳手延长套管的长度
[单选题]引起增压器振动的原因有()。Ⅰ.轴承损坏;Ⅱ.转子弯曲变形;Ⅲ.转子冷却不良;Ⅳ.转子不平衡;Ⅴ.油泵安装不良。
A. Ⅱ+Ⅳ+Ⅴ
B. Ⅰ+Ⅱ
C. Ⅰ+Ⅱ+Ⅴ
D. Ⅰ+Ⅱ+Ⅳ
[单选题]A common trouble with the fuel pump plunger or fuel valve spindle is ().
A. water leakage
B. steam leakage
C. oil leakage
D. air leakage
[单选题]It is very important that each cylinder should be () scavenged before the charged air is compressed.
A. well
B. good
C. excellent
D. respectively
[单选题]() the cylinder walls, the heat passes through them by conduction.
A. When receiving by
B. When received by
C. In order to receiving
D. In order to receive
[单选题]Cylinder lubrication oil for low speed main propulsion diesel engines is admitted to each cylinder during ().
A. the power stroke
B. the compression stroke
C. low load operation only
D. periods of standby
[单选题]A magnetic strainer is used in the diesel engine reduction gear oil system to remove small particles of().
A. water
B. babbitt
C. iron or steel
D. acid
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