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单选题
Improper maintenance of the fuel oil burners in an automatically fired auxiliary boiler, could result in ()
A
increased fuel consumption
B
increased feed water consumption
C
fuel pump failure
D
combustion control system failure
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单选题Fuel oil is thought to be one of the main factors () the operation and maintenance of an engine.A
have nothing to do withB
having nothing to do withC
have much to do withD
having much to do with
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decrease the fuel oil temperatureC
decrease the fuel oil supply pressureD
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单选题Improper maintenance of an automatic auxiliary boiler oil burner could result in ().A
fuel pump failureB
fan motor failureC
increased feedwater consumptionD
decreased boiler efficiency
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coke depositsB
cylinder water temperatureC
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Shifting suction of main fuel pump to reserve fuel oil tankC
Changing out sprayer plates to adjust for steam demandD
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the engines loadC
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fuel oil instead of diesel oilC
diesel oil instead fuel oilD
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water in the fuel oilB
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单选题Black smoke coming from a boiler can be caused by ().A
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dirty fuel will clog the intake air filter
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