The PRIMARY function of a waste heat boiler is 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]Generating tubes in waste heat boilers are finned to （）.A . reduce gas flow turbulenceB . prevent exhaust gas corrosionC . increase the rate of combustionD . increase the rate of heat transfer

[单选题]For relation where primary key contains multiple attributes， no non-key att

[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

[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