If in doubt as to the true water level when a boiler is bein

I can’t tell you the exact time when she will bein Guilin. (英译汉)

The water level showing in a boiler water gauge glass is usually ( ) duringworking.

A.higher than the actual drum water level

B.equal to the actual drum water level

C.increasing due to steam condensation in the glass

D.lower than actual drum wafer level

The correct procedure for giving an auxiliary boiler a bottom blow, is to begin .

A.when the boiler has been secured long enough for most solids to settle

B.when the boiler has been cooled to ambient temperature

C.only after raising the water level to within 0.5 inch of the high water cutout only

D.after bypassing the low pressure

If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause may be ______.

A.high steam pressure in the boiler

B.abnormally high feed-water temperature

C.abnormally high boiler water temperature

D.steam demand exceeding feed pump capacity

A.salinity is abnormally

B.high steam demand is too

C.feed-water flow is low

D.water level is abnormally low

what chemicals did you use to treat the boiler water ?when you test alkalinity and acidity of water in boiler by pH test paper ? the result shows the boiler water is in acidiity . please describe what the possible cause is .

The water level in the gauge glass when a boiler is operating is _____ when the boiler is shut down.

A.lower than

B.higher than

C.below

D.equal to

Which statement about the inert gas system is TRUE ________．

A.Boiler soot blowers should never be used when the IG system is operating

B.The boiler will produce the best quality of flue gas for the IG system when the boiler load is very light

C.The boiler will produce the most quantity of flue gas for the IG system when the boiler load is very light

D.Flue gas with excessive oxygen content is de-oxygenated in the scrubber