【名词&注释】
优越性(superiority)、动力装置(power plant)、汽轮机(steam turbine)、过热器(superheater)、蒸发器(evaporator)、给水预热器(feed unit water preheater)、不断改进(continuous improvement)
[单选题]船轴工作轴颈磨损后,经测量表明()超标准时应予以修复。Ⅰ.圆度;Ⅱ.圆柱度;Ⅲ.椭圆度;Ⅳ.法兰径向跳动;Ⅴ.法兰端面跳动。
A. Ⅱ+Ⅲ
B. Ⅰ+Ⅱ+Ⅳ
C. Ⅰ+Ⅱ+Ⅴ
D. Ⅰ+Ⅲ+Ⅳ
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学习资料:
[单选题]汽轮机动力装置不断改进(continuous improvement)提高,单机功率大、效率有所提高,当功率超过()kW时,汽轮机动力装置的优越性更为突出。
A. 5000
B. 10000
C. 22000
D. 36000
[单选题]MAN-B&W公司推出的带汽轮发电机的废气锅炉系统,主要特点是它带有给水预热器(feed unit water preheater)、蒸发器和过热器的单压蒸汽系统;产生的蒸汽除用于加热外还可用于驱动汽轮发电机;废气锅炉与燃油辅助锅炉之间有循环水泵并共用汽鼓。对其评价可选为()。
A. 该废气锅炉系统布置合理,但满足汽轮发电机所需蒸汽量时,不能满足加热之需
B. 排气余热利用较完善,能满足汽轮发电机和加热系统所需蒸汽量
C. 该废气锅炉系统更先进,不仅满足加热系统的要求,还部分满足汽轮发电机之需
D. 该废气锅炉系统适宜于各类功率大小的船舶
[单选题]Generally the gudgeon pin is fully floating in both connecting rod small end and ().
A. the crosshead
B. the crankshaft
C. large end
D. the piston bosse
[单选题]Modern engines () exhaust gas driven turbo-chargers to supply pressurized fresh air for scavenging and supercharging.
A. are made of
B. are made from
C. make use of
D. are used to
[单选题]The engine in a covered lifeboat is fueled with().
A. kerosene
B. unleaded gasoline
C. diesel oil
D. liquefied ga
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