A . 10
B . 7
C . 4
D . 1
[单选题]The water in an auxiliary boiler should be tested for chloride content to determine ( ).A.total dissolved solidsB.salt contaminationC.water harcnessD.chlorine contamination
[单选题]When an auxiliary boiler is panting and emitting black smoke, you should ().A . increase the fuel oil temperatureB . decrease the fuel oil temperatureC . decrease the fuel oil supply pressureD . increase the air supply
[单选题]The water in an auxiliary boiler should be tested for chloride content to determine ().A . total dissolved solidsB . salt contaminationC . water hardnessD . chlorine contaminatio
[单选题]If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause maybe ().A . high steam pressure in the boilerB . abnormally high feed water temperatureC . abnormally high boiler water temperatureD . steam demand exc
[单选题]In an auxiliary boiler steam and water system, the highest pressure will be in the ().A . steam stop valveB . dry pipeC . feedwater systemD . generating tube
[单选题]H.ow to operate boiler?
[名词解释] 停堆 shutdown
[单选题]The procedures recommended for auxiliary boilers having high salinity include ().A . treating with oxygen scavengersB . securing the boiler and giving it a blowing downC . increasing the pHD . reducing the phosphate level
[单选题]The water level showing in a boiler water gauge glass is usually ( ) duringworking.A.higher than the actual drum water levelB.equal to the actual drum water levelC.increasing due to steam condensation in the glassD.lower than actual drum wafer level
[单选题]The auxiliary engine and a cgenerator can be connected with ().A . camB . crossheadC . bulgeD . coupling