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单选题
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
A
the temperature and flow quantity of the exhaust gas from M/E
B
the quantity of steam demanded
C
the rotary speed and the cooling water temperature of main engine
D
efficiency of M/ turbocharger
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单选题The exhaust pipe must be gas tight throughout its entire length otherwise（）.A
bilge water may enter the exhaust pipeB
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单选题The hot expanding gas rotates the blades of the exhaust turbine, thus giving out large part of its power, which drives （）.A
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the fresh water generatorC
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单选题The water level of an exhaust gas boiler which is independent of the auxiliary boiler and just as the extra heating surface of it （）A
will be modulated in proportionB
will be modulated in proportion and integralC
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will not be modulated at all
考题
单选题For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）A
the temperature and flow quantity of the exhaust gas from M.EB
the quantity of steam demandedC
the rotary speed and the cooling water temperature of main engineD
efficiency of M.E turbocharger
考题
单选题An exhaust gas bypass is installed on a waste heat boiler in order to （）.A
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bypass a portion of the exhaust gas at peak loads for better efficiencyC
recycle exhaust gas to the turbochargerD
minimize moisture condensation in the boiler gas passages at low loads
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单选题The diesel engine exhaust gas bypass, as fitted with some waste heat boilers, is installed to （）A
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单选题The exhaust system of a diesel engine is usually designed to remove exhaust gases and to （）A
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单选题The purpose of designing some waste heat boilers with sinuous fire tubes, is to（）A
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单选题The exhaust boilers are used to recover some of （） carried in the exhaust gas from the main engine.A
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考题
单选题At normal sea going, we use （） instead of donkey boiler.A
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考题
单选题Fins are installed on the generating tube surfaces in waste heat boilers to （）.A
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考题
单选题The boiler is fired （） the demand for steam exceeds that available from exhaust gas heating.A
wheneverB
howeverC
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whether
考题
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