Generating tubes in waste heat boilers are finned to （）.

[单选题]A SECONDARY function of a waste heat boiler is to （）.A . reduce engine exhaust noiseB . reduce engine back pressureC . increase engine cycle efficiencyD . increase turbocharger efficiency

[单选题]The PRIMARY function of a waste heat boiler is to （）A . reduce engine exhaust noiseB . reduce engine back pressureC . recover heat which otherwise would be lostD . increase turbocharger efficiency

[单选题]Auxiliary boilers are divided into several classifications, one of which is （）.A . water-tube supercritical circulationB . water-tube forced circulationC . fire-tube controlled circulationD . fire-tube express circulatio

[单选题]Fins are installed on the generating tube surfaces in waste heat boilers to （）.A . prevent soot fires in the exhaust systemB . prevent exhaust gas erosion of the tubesC . increase the velocity of exhaust gas flowD . increase the rate of heat transfer

[单选题]（ ）More and more waste has __________ a lot of space.We should do something to reduce it.A．taken placeB．taken awayC．taken upD．taken off

[问答题] HEAT SOAK “SET”何时设置？HEAT SOAK SET 何时复位？汽轮机复位后MSVCVRSVICV如何动作？

[名词解释] 余热 residual heat

[单选题]A．My parents taught me not to waste food. My mom always found ways to make leftovers (剩余食物) taste good. I went to Ilan to learn about some of their special foods. As I was there, I learned about the food and the history of the area. I learned that th

[单选题]Do not waste timeon [insignificant] points.A.interestingB.dullC.unimportant

[单选题]Do not waste timeon [insignificant] points.A.interestingB. dullC. unimporta