A hot air start pipe indicates that there is （）.

【名词&注释】

增压器(turbocharger)、舵系中心线

[单选题]A hot air start pipe indicates that there is （）.

A. inefficient cooling
B. a leaking air start valve
C. a clogged drain valve
D. a leaking air bottle

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学习资料：

[单选题]航行中一旦发现增压器振动，则首先应该（）。

A. A．停机检修
B. B．查明原因
C. C．降低转速
D. D．锁住转子

[单选题]目前钢质海船建造时安装的轴系广泛采用（）。

A. 直线校中
B. 按轴承允许负荷校中
C. 合理校中
D. A或B或C

[单选题]铁梨木轴承产生（）时应予以部分或全部换新。

A. 变形与开裂
B. 磨损
C. 轴承间隙超差
D. 腐蚀

[单选题]舵系中心线与轴系中心线应该（）。

A. 垂直
B. 相交
C. 平行
D. 重合

[单选题]（） of an engine crankshaft can be detected by measuring deflections of crank webs for each unit of the engine.

A. Misalignment
B. Length
C. Strength
D. Stresse

[单选题]The injector pump is operated by a cam which drives the （） up and down.

A. piston
B. drum
C. plunger
D. barrel

[单选题]The position of the piston parts in relation to each other is secured by means of （） and a dowel pin in the crown.

A. bosses
B. through bolts
C. machine-turned recesses
D. long stud

[单选题]Diesel engine jacket water is used in the distillation process as the （）.

A. coolant for the distillate
B. coolant for the brine cooler
C. means of heating the feedwater
D. primary means of producing a vacuum within the distiller

[单选题]What is an advantage of a steam turbine over a diesel for the main propulsion?（）

A. Faster response from ahead to astern
B. Less fuel consumption
C. Cheaper initial installation cost
D. Less weight per unit of horsepower

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