MAN-B&W公司推出的标准废气锅炉系统，主要特点是废气锅炉为

【名词&注释】

增压器(turbocharger)、船舶动力装置(marine power plant)、静平衡试验(static balance test)、正确理解(correct understanding)、动平衡试验(dynamic balance test)

[单选题]MAN-B&W公司推出的标准废气锅炉系统，主要特点是废气锅炉为单压蒸汽系统；产生饱和蒸汽供加热之需；废气锅炉与燃油辅助锅炉之间有循环水泵并共用一个汽鼓，对其评价可选为（）。

A. 具有明显的简单性和低投资成本，又完全满足船舶加热所需蒸汽量的要求
B. 具有明显的简单性和低投资成本，但不能满足船舶加热所需蒸汽量的要求，而需要燃油辅助锅炉补充蒸汽
C. 该废气锅炉系统对排气余热的利用程度已十分充分
D. 该废气锅炉系统适宜于大功率的船舶动力装置

查看答案&解析 查看所有试题

学习资料：

[单选题]要求机座全部底脚螺栓中的（）以上的螺栓采用紧配螺栓，以防机座移位。

A. A．10%
B. B．15%
C. C．20%
D. D．25%

[单选题]消除增压器振动的方法可采用（）。Ⅰ.换新转子；Ⅱ.换新轴承；Ⅲ.动平衡试验^{(dynamic balance test)}；Ⅳ.静平衡试验；Ⅴ.校中测量。

A. A．Ⅰ＋Ⅱ＋Ⅲ＋Ⅴ
B. B．Ⅱ＋Ⅲ
C. C．Ⅰ＋Ⅲ＋Ⅴ
D. D．Ⅱ＋Ⅱ＋Ⅳ

[单选题]备车的正确理解是（）。Ⅰ.保证船舶开航；Ⅱ.保证船舶机动航行；Ⅲ.保证船舶动力装置及设备处于随时可启动和运行

A. Ⅰ+Ⅱ
B. Ⅰ+Ⅲ
C. Ⅱ+Ⅳ
D. Ⅰ+Ⅱ+Ⅲ

[单选题]If the engine does start on air, but combustion does not immediately begin, the cause may be （）.

A. failure of the fuel pumps
B. starting air pressure too low
C. stop valve in air line closed
D. the turning gear still engaged

[单选题]In the （） pressure charging system the pulse of energy that occur as the exhaust is released from the cylinder to improve the output of the turbocharger.

A. constant
B. pulse
C. high
D. none of the above

[单选题]Marine four-stroke diesel engines are mainly （）.

A. of crosshead type
B. of trunk piston type
C. of low speed type
D. all the above

[单选题]Which of the following conditions could cause the feed pump for an auxiliary boiler to lose suction?（）

A. Increased suction head pressure
B. Decreased feedwater temperature
C. Pump recirculating line being open too much
D. Excessive feedwater temperature

[单选题]White smoke exhausting from an operating diesel engine may indicate （）.

A. a cracked liner
B. burning lube oil
C. an overloaded engine
D. insufficient combustion air

[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

本文链接：https://www.51bdks.net/show/qklrz7.html