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85 Cards in this Set
- Front
- Back
When taking over a shift, preliminary safety checks allow the boiler operator to identify any possible problems.
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True
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A routine set of duties helps the operator to complete all assigned tasks.
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True
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In general, boilers should be blown down every 24 hr.
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True
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The main steam stop valve should be closed during normal plant start-up.
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True
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The boiler vent must be closed during warm-up to prevent pressure from escaping.
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False
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A bottom blowdown can be used to control chemical concentrations in the boiler.
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True
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The furnace brickwork should be cooled rapidly for energy efficiency.
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False
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There should be pressure in the boiler when dumping.
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False
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The boiler should be blown down when it is on a heavy load.
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False
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The operator's hand must always be kept on the blowdown valve during blowdown.
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True
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The blowdown valve should be kept open long enough for the water level in the gauge glass to drop out of sight.
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False
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The quick-opening valve is opened first and closed last during blowdown.
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True
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The low water fuel cutoff is checked for proper operation with the burner firing.
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True
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Try cocks can be used as a boiler water level indicator.
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True
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Steam discharged from the top try cock indicates a low water level.
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False
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An evaporation test is performed by blowing down the low water fuel cutoff.
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False
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Water added to a boiler with a low water level condition could cause a boiler explosion.
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True
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Furnace explosions are caused by steam in the fuel oil.
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False
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Any abnormal odor of gas should alert the boiler operator to a possible leak.
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True
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The boiler must be filled with water heated to 50°F before it is started for the first time.
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False
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Bottom blowdown is performed by opening the gauge glass blowdown valve.
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False
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Leaking fuel oil in the furnace could lead to a furnace explosion.
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True
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The boiler should be inspected to determine the cause of a low water level condition.
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True
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The furnace should not be purged after a flame failure.
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False
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A boiler must be taken off-line before it can be inspected.
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True
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Main steam stop valves must be tagged out during a boiler inspection.
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True
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After a boiler is dumped, it should dry completely before cleaning.
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False
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A hydrostatic test is a steam test used to check for boiler leaks.
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False
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A malfunctioning steam trap can result in a steambound feedwater pump.
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True
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Tools and equipment must be provided for the boiler inspector during boiler inspection.
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True
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During a hydrostatic test, the boiler is half filled with water.
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False
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Dry lay-up is recommended for boilers that will be out of service for an extended period.
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True
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Moisture left on metal surfaces during dry lay-up could cause scale buildup.
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False
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More pounds of silica gel than quicklime are required when laying up a boiler dry.
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True
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All valves are opened during dry lay-up.
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False
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A scratch on the inside of a gauge glass can cause it to break.
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True
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A clean gauge glass is necessary to accurately determine boiler water level.
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True
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A boiler inspection is commonly performed by the plant manager.
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False
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An evaporation test lowers the boiler water level rapidly.
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False
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Two people should be present during an evaporation test.
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True
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All plants maintain boiler room logs for an 8-hour period.
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False
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A boiler room log can be used to determine the cause of a boiler shutdown.
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True
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Boiler lay-up is required when the boiler is out of service between shifts.
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False
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When warming up the boiler, the low water fuel cutoff should be blown down before the steam pressure gauge records pressure.
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False
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When shutting down the boiler, the main steam valve should be closed immediately after the furnace is shut down.
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False
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The first thing a boiler operator should do when taking over a shift is ___.
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check the boiler water level
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When the low water fuel cutoff is blown down, ___.
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the burner should shut off
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The boiler pressure should always be ___ the header pressure when cutting a boiler in on the line.
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slightly below
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The boiler should be blown down when it is ___.
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on a light load
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ASME code states that on boilers having two bottom blowdown valves, the ___ valve should be closest to the boiler.
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quick-opening
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After blowing down the water column and gauge glass, the water should ___ the gauge glass.
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quickly enter
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If water cannot be seen in the gauge glass, ___.
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the burner should be secured
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A furnace explosion can be caused by ___.
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a buildup of combustible gases or vapors, leaking gas or fuel oil, & improper furnace purge
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The ___ blowdown valve is used to dump the boiler.
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bottom
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The best method for checking for leaks in gas lines is ___.
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applying soapy water
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A(n) ___ test is used to check for leaks in the boiler.
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hydrostatic
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All traces of coal, soot, and ash must be removed to prevent ___ from forming when mixed with water.
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sulfuric acid
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A steambound pump is caused by ___.
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excessive water temperature
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A(n) ___ test is used to test the low water fuel cutoff.
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evaporation
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A ___ is used to record information regarding operation of the boiler during a given period of time.
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boiler room log
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The boiler must be ___ when the low water fuel cutoff is blown down.
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firing
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The flame scanner is removed with the burner firing, the ___.
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burner should shut off
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To prevent damage to the furnace brickwork, the furnace ___.
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should be cooled slowly
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Boiler ___ is a condition when a boiler is operating at or above its maximum allowable working pressure.
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overpressure
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Before dumping the boiler, the boiler heating surface should be ___.
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cool enough to touch
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The water column whistle valve is ___ during the hydrostatic test.
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removed
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During the hydrostatic test, pressure on the boiler is brought up to ___ times the MAWP.
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1½
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Water used to fill the boiler during the hydrostatic test should be a minimum of ___°F.
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70
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___ is placed on the water side of the boiler when placing the boiler in dry lay-up.
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Quicklime
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Gauge glass nuts are tightened by hand and then turned ___ with a wrench.
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1/4 of a turn
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A ___ test is the most accurate method of testing the low water fuel cutoff.
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evaporation
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When testing a low water fuel cutoff, the burner should shut off when ___.
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water is still visible in the gauge glass
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The internal mechanism of a low water fuel cutoff should be periodically removed from the bowl to check and ___ the float ball.
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clean
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To correct a high water condition, a ___ is performed.
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bottom blowdown
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New ___ should be used when replacing a broken gauge glass.
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packing nuts
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A boiler is given a bottom blowdown to ___.
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discharge sludge
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A leak on gas lines and equipment must be repaired ___.
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by authorized personnel
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For maximum safety in operation of a low pressure boiler, the low water fuel cutoff should be tested ___.
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daily
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Boiler data that is commonly recorded on a boiler room log includes ___.
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boilers on line, steam pressure, & condensate return temperature
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All running auxiliaries (fuel oil pumps, fan, water pump, and burner) should be checked for proper ___.
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temperature, pressure, & lubrication
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The proper testing of boiler accessories is determined by procedures suggested by ___.
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ASME Code
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After testing the flame scanner, ___.
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reset the programmer
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During the evaporation test, the ___ is secured.
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automatic city water makeup feeder
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During a boiler inspection, the main steam stop valve is ___.
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closed and tagged out
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The ___ must be covered with water before water can be added safely.
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heating surface
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