Auxiliary boilers are divided into several classifications, one of which is()
- Afire-tube controlled circulation
- Bfire-tube supercritical circulation
- Cwater-tube natural circulation
- Dwater-tube express circulatio
Auxiliary boilers are divided into several classifications, one of which is()
1、Before an auxiliary boiler is shutdown
Before an auxiliary boiler is shutdown for an extended period of time, the water in the boiler should have a pH value of ().A10B7C4D1
2、Statutory survey could be divided into
Statutory survey could be divided into two kinds, they are ()Afirst survey and certificate exchange surveyBfirst survey and operation surveyCfirst survey and periodic surveyDclassification survey and certificate exchange survey
3、Australia is politically divided into(
Australia is politically divided into()states and()territories.Afour/three Bfive/twoCsix/three Dsix/two
4、Ireland is divided into two political
Ireland is divided into two political parts:().ANorthern Ireland and Southern IrelandBSouthern Ireland and the Republic of IrelandCThe Republic of Ireland and Northern IrelandDNorthern Ireland and Britai
5、In an auxiliary boiler steam and water
In an auxiliary boiler steam and water system, the highest pressure will be in the ().Asteam stop valveBdry pipeCfeedwater systemDgenerating tube
6、The water in an auxiliary boiler shoul
The water in an auxiliary boiler should be tested daily for ().Adissolved oxygenBchloridesCsludgeDdissolved nitroge