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MD Stationary Engineer
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MD Stationary Engineer
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MD Stationary EngineerA boiler horsepower is defined as - ANS-The Evaporation of 34.5 pounds of water per
hour and at feed water temp of 212 degrees
Adirect cause oh overheating of the boiler tubes is..... - ANS-Scale formation on the
tubes
Air needed for combustion of fuel is made up of approximately _________% oxygen
and ________ nitrogen - ANS-20, 80
AUTOMATIC NONRETURN VALVE - ANS-Valve located on the steam line closest to
the shell of the boiler that cuts the boiler in on the line and off-line automatically. This
valve also protects the system in the event of a large steam leak on any boiler.
Bituminous coal has a high ______ content - ANS-Volatile
Boil the water must be conditioned to prevent ______ (3 Answers) - ANS-Formation of
scale, oxygen pitting, carryover
Boiler tubes are sized using the - ANS-outside diameter
Carbon dioxide ( CO2) in the flue gas indicates.... - ANS-Complete combustion
Carbon Dioxide in the flue has is a sign of what kind of combustion? - ANS-Complete
Carbon monoxide (CO) in the flue gas indicates ______ - ANS-incomplete combustion
Compressor does what? - ANS-Changes low pressure gas to a high pressure liquid
Deposits of calcium and magnesium carbonates on the boiler heating surface cause___
- ANS-scale
Flow meters measure the rate of flow of.... - ANS-A variety of fluids
Gases of Combustion that cool on Contact with the boiler heating Surface before
combushion is completed Cause a(n) _________ - ANS-Formation of soot and smoke
Gauge pressure plus atmospheric pressure equals what? - ANS-Absolute pressure
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