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]Sanitary waste matter will .(1)pass through a screen or cutters (2)come into contact with the bacteria in a tank (3)be discharged, normally without bacteriaA．(1)B．(1)(2)C．(2)(3)D．(1)(2)(3)

[名词解释] 废物减量化（Waste Minimization）

[单选题]Passage ThreeIn an age when waste today means a lack tomorrow, making use of every available resource becomes more and more important. As coal is being used in greater and greater amounts to produce electricity, larger amounts of ash, by-product of c