BLACK SEAL TEST COMPREHENSIVE TEST
2026 QUESTIONS WITH ANSWERS GRADED
A+
⩥ In the state of NJ, safety valves on low and high pressure boilers
should be tested how often? Answer: Monthly
⩥ One boiler horsepower, according to NJ Mechanical Inspection
Bureau, equals: Answer: 34.5 lbs. of steam per hour @ 212 F
⩥ When starting a shift, the first thing a boiler operator should check is:
Answer: The water levels of all boilers
⩥ In the event of a flame failure, the programmer will ___. Answer:
Secure the fire, Purge the firebox, and then shut down.
⩥ How often would you blow down a boiler with no chemical water
analysis? Answer: Daily
⩥ Absolute Pressure is equal to _____. Answer: Gauge Pressure +
Atmospheric Pressure
, ⩥ Heavy accumulations of soot on heating surfaces can lead to: Answer:
Decrease in boiler capacity
⩥ Where should the boiler regulation number be located? Answer: On
the front of the boiler
⩥ The ____ regulates the high and low fire of the burner? Answer:
Modulating Pressure Control
⩥ The water column and gauge glass should usually be blown down
_____. Answer: Daily
⩥ Pressure gauges are calibrated in pounds per ____. Answer: Square
inch
⩥ The primary function of a low water fuel cutoff is to ____. Answer:
Shut down burner if the water level drops
⩥ The low water fuel cutoff should be tested____. Answer: Daily
⩥ Which of these similar size valves requires the most manual valve
steam rotation to move from fully opened to fully closed? (each has non-
rising stem) Answer: Gate
2026 QUESTIONS WITH ANSWERS GRADED
A+
⩥ In the state of NJ, safety valves on low and high pressure boilers
should be tested how often? Answer: Monthly
⩥ One boiler horsepower, according to NJ Mechanical Inspection
Bureau, equals: Answer: 34.5 lbs. of steam per hour @ 212 F
⩥ When starting a shift, the first thing a boiler operator should check is:
Answer: The water levels of all boilers
⩥ In the event of a flame failure, the programmer will ___. Answer:
Secure the fire, Purge the firebox, and then shut down.
⩥ How often would you blow down a boiler with no chemical water
analysis? Answer: Daily
⩥ Absolute Pressure is equal to _____. Answer: Gauge Pressure +
Atmospheric Pressure
, ⩥ Heavy accumulations of soot on heating surfaces can lead to: Answer:
Decrease in boiler capacity
⩥ Where should the boiler regulation number be located? Answer: On
the front of the boiler
⩥ The ____ regulates the high and low fire of the burner? Answer:
Modulating Pressure Control
⩥ The water column and gauge glass should usually be blown down
_____. Answer: Daily
⩥ Pressure gauges are calibrated in pounds per ____. Answer: Square
inch
⩥ The primary function of a low water fuel cutoff is to ____. Answer:
Shut down burner if the water level drops
⩥ The low water fuel cutoff should be tested____. Answer: Daily
⩥ Which of these similar size valves requires the most manual valve
steam rotation to move from fully opened to fully closed? (each has non-
rising stem) Answer: Gate
