BLACK SEAL CORRECT TEST PAPER QUESTIONS
AND ANSWERS SURE A+
✔✔What is the main purpose of a check valve on the boiler feedwater line? - ✔✔To
allow flow in one direction only
✔✔The main function of a water column on a steam pressure boiler is to: - ✔✔Slow
down movement of water to get accurate reading of water levels
✔✔A steam pressure gauge is designed to show steam calibrated in: - ✔✔Lbs. / Sq.
Inch
✔✔The primary function of the MBCS ( Micro burner combustion system) is: -
✔✔Combustion Safety
✔✔What is the purpose of the aquastat? - ✔✔Control Water Temperature
✔✔What is the name of the device used to keep live steam from getting into a pressure
gauge? - ✔✔Siphon loop
✔✔What is the minimum temperature at which a hot water heating boiler should be
operates at to prevent flue gas condensation? - ✔✔170 F
✔✔The vaporstat should be electrically interlocked with the: - ✔✔Fuel solenoid valve
✔✔What is the name of the science that is used for heating while using water as a
conveying medium? - ✔✔Hydronics
✔✔Automatic feedwater regulators are blown down how often? - ✔✔Daily
, ✔✔A safety valve on a low pressure hot water boiler will have a maximum setting of: -
✔✔160 psig
✔✔Hard water contains____. - ✔✔Scale-forming salts
✔✔According to NJ Mechanical Inspection Bureau rules, the boiler jurisdiction
(regulation) number must be placed on the ___ of each boiler - ✔✔Front
✔✔On a low pressure boiler, after start-up, when do you close the vent valve? -
✔✔When the steam comes out
✔✔How are cast iron sectional boilers put together? - ✔✔With push nipples and bolts
✔✔What is the maximum horsepower a NJ low pressure licenced operator can operate
up to? - ✔✔No limit
✔✔New or retubed boilers should be cleaned with: - ✔✔An alkaline solution
✔✔In the state of NJ, safety valves on low and high pressure boilers should be tested
how often? - ✔✔Monthly
✔✔One boiler horsepower, according to NJ Mechanical Inspection Bureau, equals: -
✔✔34.5 lbs. of steam per hour @ 212 F
✔✔When starting a shift, the first thing a boiler operator should check is: - ✔✔The water
levels of all boilers
✔✔In the event of a flame failure, the programmer will ___. - ✔✔Secure the fire, Purge
the firebox, and then shut down.
✔✔How often would you blow down a boiler with no chemical water analysis? - ✔✔Daily
✔✔Absolute Pressure is equal to _____. - ✔✔Gauge Pressure + Atmospheric Pressure
✔✔Heavy accumulations of soot on heating surfaces can lead to: - ✔✔Decrease in
boiler capacity
✔✔Where should the boiler regulation number be located? - ✔✔On the front of the
boiler
✔✔The ____ regulates the high and low fire of the burner? - ✔✔Modulating Pressure
Control
AND ANSWERS SURE A+
✔✔What is the main purpose of a check valve on the boiler feedwater line? - ✔✔To
allow flow in one direction only
✔✔The main function of a water column on a steam pressure boiler is to: - ✔✔Slow
down movement of water to get accurate reading of water levels
✔✔A steam pressure gauge is designed to show steam calibrated in: - ✔✔Lbs. / Sq.
Inch
✔✔The primary function of the MBCS ( Micro burner combustion system) is: -
✔✔Combustion Safety
✔✔What is the purpose of the aquastat? - ✔✔Control Water Temperature
✔✔What is the name of the device used to keep live steam from getting into a pressure
gauge? - ✔✔Siphon loop
✔✔What is the minimum temperature at which a hot water heating boiler should be
operates at to prevent flue gas condensation? - ✔✔170 F
✔✔The vaporstat should be electrically interlocked with the: - ✔✔Fuel solenoid valve
✔✔What is the name of the science that is used for heating while using water as a
conveying medium? - ✔✔Hydronics
✔✔Automatic feedwater regulators are blown down how often? - ✔✔Daily
, ✔✔A safety valve on a low pressure hot water boiler will have a maximum setting of: -
✔✔160 psig
✔✔Hard water contains____. - ✔✔Scale-forming salts
✔✔According to NJ Mechanical Inspection Bureau rules, the boiler jurisdiction
(regulation) number must be placed on the ___ of each boiler - ✔✔Front
✔✔On a low pressure boiler, after start-up, when do you close the vent valve? -
✔✔When the steam comes out
✔✔How are cast iron sectional boilers put together? - ✔✔With push nipples and bolts
✔✔What is the maximum horsepower a NJ low pressure licenced operator can operate
up to? - ✔✔No limit
✔✔New or retubed boilers should be cleaned with: - ✔✔An alkaline solution
✔✔In the state of NJ, safety valves on low and high pressure boilers should be tested
how often? - ✔✔Monthly
✔✔One boiler horsepower, according to NJ Mechanical Inspection Bureau, equals: -
✔✔34.5 lbs. of steam per hour @ 212 F
✔✔When starting a shift, the first thing a boiler operator should check is: - ✔✔The water
levels of all boilers
✔✔In the event of a flame failure, the programmer will ___. - ✔✔Secure the fire, Purge
the firebox, and then shut down.
✔✔How often would you blow down a boiler with no chemical water analysis? - ✔✔Daily
✔✔Absolute Pressure is equal to _____. - ✔✔Gauge Pressure + Atmospheric Pressure
✔✔Heavy accumulations of soot on heating surfaces can lead to: - ✔✔Decrease in
boiler capacity
✔✔Where should the boiler regulation number be located? - ✔✔On the front of the
boiler
✔✔The ____ regulates the high and low fire of the burner? - ✔✔Modulating Pressure
Control
