正确答案: 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

题目：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、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（）。

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学习资料的答案和解析：

[单选题]（）对发动机加速性影响更为突出，因此（）为优。

受热部件的热惯性/中速机

[单选题]曲轴与艉轴的同轴度误差的参数是（）。

δ总、φ总

[单选题]It is necessary to remove （） from the cooling spaces.

scale

[单选题]Opening of the cylinder （） will admit compressed air into the cylinder.

start valve

[单选题]The film of oil between the rings and the liner is not only essential for the lubrication but also plays an important part in achieving （）.

a gas seal

[单选题]Diesel engine main and connecting rod precision bearings are made in halvesEach half exceeds one-half the bearing circumference by a small amountThe small amount is termed （）.

pitch

[单选题]In order to reverse the rotation of a two-stroke/cycle loop scavenged, direct reversing, propulsion diesel engine, the cam positions must be changed for the （）.

starting air and fuel pumps

[单选题]Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.

all of the above