A （）is the foundation of the engine, without the support o

【名词&注释】

柴油机(diesel engine)、往复式(reciprocating)、汽轮机(steam turbine)、说明书(specification)、气缸套(cylinder liner)、蒸汽动力装置(steam power plant)、蒸汽机(steam engine)、具体情况(concrete conditions)

[单选题]A （）is the foundation of the engine, without the support of which the shaft alignment in particular, and engine structure as a whole, would inevitably be lost.

A. Frame
B. Bedplate
C. Cylinder
D. Liner

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学习资料：

[单选题]最早用于海船上的蒸汽动力装置^{(steam power plant)}是（）。

A. 汽轮机
B. 往复式蒸汽机^{(steam engine)}
C. 往复式与透平联合装置
D. A+C

[单选题]柴油机纵向校中是指在（）上活塞运动部件与固定件有准确的相对位置。

A. 柴油机首、尾方向
B. 船舶首、尾方向
C. 气缸套首、尾方向
D. 活塞首、尾方向

[单选题]测量曲轴臂距差后，应对所测数据依据（）进行分析和判断。

A. 柴油机说明书
B. 具体情况^{(concrete conditions)}
C. 有关标准
D. 柴油机说明书和有关标准

[单选题]For a main diesel engine the lube oil in the bearings is drawn from （）, usually located in the bedplate.

A. a gravity tank
B. a sump
C. a vessel
D. a bottle

[单选题]Pistons of marine medium speed diesel engines may be made of （） in order to keep the weight down for balancing purpose at high speed.

A. lead
B. forged steel
C. alloy steel
D. aluminum alloy

[单选题]Smaller engines can be made more rigid than large ones and may not have （）.

A. connecting rods
B. crankshaft
C. crankcase
D. through bolt

[单选题]Which of the following may cause that an engine doesnt run on starting air?（）

A. too low starting air pressure
B. main start valve closed
C. neither A nor B
D. A and B

[单选题]The concentration of total dissolved solids in the water of an auxiliary boiler can increase as a result of （）.

A. seawater contamination
B. frequent surface blows
C. dissolved oxygen deaeration
D. frequent bottom blow

[单选题]Exhaust valve grooving and corrosion is caused by certain components of residual fuel oilThese components are sodium, sulfur, and （）.

A. vanadium
B. carbon
C. copper
D. ash

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