3rd class Maine Stationary Steam exam with answers

3rd class Maine Stationary Steam exam
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with answers |\




A sample of boiler water can be chemically tested for
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alkalinity by initially adding a few drops of
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phenolphthalein and then slowly titrating the water |\ |\ |\ |\ |\ |\ |\



sample until the __________. - CORRECT ANSWERS
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✔✔Sample color changes from clear to pink |\ |\ |\ |\ |\ |\




High carbon monoxide content in the flue gases of a
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boiler indicate ________ - CORRECT ANSWERS
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✔✔Incomplete combustion |\




One of the operating conditions sensed by a two-element
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feed water regulator __________ - CORRECT ANSWERS
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✔✔Steam flow or Drum level |\ |\ |\ |\




Sediment in fuel oil will cause ________ - CORRECT
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ANSWERS ✔✔clogged atomizer tips |\ |\ |\




Relief valves in the fuel oil service system discharge to
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either the service pump or the ___________ - CORRECT
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ANSWERS ✔✔Settling tanks |\ |\

, White smoke coming from the stack indicates - CORRECT
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ANSWERS ✔✔Too much excess air |\ |\ |\ |\




What casualty is apt to occur immediately after high
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water casualty? - CORRECT ANSWERS ✔✔Water carry
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over to the turbine |\ |\ |\




What characteristic of fuel oil is the most significant when
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determining the temperature to which the oil must be
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heated for proper atomization? - CORRECT ANSWERS
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✔✔Viscosity


The efficiency of boiler combustion can be measured by
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the relative proportions of what elements in the flue
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gases? - CORRECT ANSWERS ✔✔Carbon dioxide, Oxygen,
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and Carbon monoxide
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The overheating of fuel oil in the fuel oil heaters may
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result in _________ - CORRECT ANSWERS ✔✔Clogged fuel
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oil filters
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Excessive carbon dioxide formed by improper chemical
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treatment in the boiler may cause corrosion in the |\ |\ |\ |\ |\ |\ |\ |\ |\



_________ - CORRECT ANSWERS ✔✔Condensate lines|\ |\ |\ |\ |\