Low Pressure Boiler Black Seal Exam
LOW PRESSURE BOILER BLACK SEAL EXAM NEWEST
2025/2026 COMPLETE ALL QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW VERSION!
What is the maximum penalty for performing the duties of a boiler operator with
an expired license? - ANSWER-$5,000.00
What is the purpose of an aquastat control device on a boiler system? - ANSWER-
it is used to control water temperature
In a two-pipe direct-return hot water heating system, the supply and return water
flow in the same direction. - ANSWER-false
Which of the following is not an advantage of steam heating systems? - ANSWER-
only small pumps are needed to move steam.
What is the maximum temperature allowed on all low pressure heating boilers? -
ANSWER-250 degrees F
What type of boiler is a Horizontal Return Boiler (HRT)? - ANSWER-a fire-tube
boiler
A steam heating boiler plant consists of 3 fire-tube boilers, each with a burner
input of 5,175 lbs/hr. Calculate the total boiler horsepower (BHP) of this plant. -
ANSWER-450 BHP
1|Page
, Low Pressure Boiler Black Seal Exam
Which of the following statements regarding a hydronic heating system is accurate
in its description? - ANSWER-the water circulator must take the water from the
boiler and move it through the individual terminals or heating units where the
heat is emitted and then returns the water to the boiler to be reheated.
Where on the Certificate of Inspection would you find the State of New Jersey
jurisdiction number? - ANSWER-upper left corner
Which of the following best describes the combustion chamber of a serpentine
tube heating boiler? - ANSWER-it is located below the tubes
By N.J.A.C. rules, a school with a boiler plant with a total interconnected capacity
of 100 BHP would require a properly licensed operator to be present whenever
the building was deemed occupied. - ANSWER-false
Which of the following is not a classification of a hot water system? - ANSWER-a
Hartford loop system
When bringing a steam heating plant on line from a cold start, when the ambient
conditions are about 20 degrees F, what condition are you preventing when the
pressure is increased gradually? - ANSWER-thermal shock
A boiler operator's log shall be maintained in each plant containing over: -
ANSWER-100 Boiler HP
2|Page
, Low Pressure Boiler Black Seal Exam
By definition, a boiler is an open vessel in which water is turned to steam under
pressure by the application of heat. - ANSWER-false
According to state boiler regulations, where should the boiler registration number
be located? - ANSWER-on the front of the boiler
As an operator in a plant you must always be aware of your surroundings. Which
of the following, that should be under the control of the licensed operator, can be
extremely dangerous and cause a catastrophic hazardous event if it is not
inspected annually? - ANSWER-The boiler(s) can be dangerous if not inspected
and maintained properly
The primary purpose of establishing a set of plant safety rules is to: - ANSWER-
protect workers and equipment
The ASME Code states that the setting on the high limit pressure control on a low
pressure steam boiler shall not exceed: - ANSWER-15 psig
In order to be a good operator one must have basic knowledge on the principles
of how energy works in a steam and hot water system. Which of the statements
below is correct? - ANSWER-in a heating system, in order to change state from a
liquid to a gaseous state heat must be added.
What ASME code section is used for the care and operation of heating boilers? -
ANSWER-ASME Code, Section VI
3|Page
, Low Pressure Boiler Black Seal Exam
In a hot water heating system, where would you find an expansion tank and what
is its function? - ANSWER-on the suction side of the pump to avoid negative
pressure in the system
What is the official ASME letter stamp used to denote low pressure heating
boilers? - ANSWER-H
What ASME codes are heating boilers built to? - ANSWER-Section IV
How are the sections of a CIS (cast iron sectional) boiler connected? - ANSWER-by
push nipples and bolts
What is the minimum penalty for not properly posting your license? - ANSWER-
$500.00
In a two-pipe reverse-return hot water heating system, the supply and return
water flow in the same direction. - ANSWER-True
What are the four systems required to operate a steam boiler? - ANSWER-steam,
feedwater, fuel, and draft
The most important rule in the safe operation of a steam boiler is to: - ANSWER-
keep the boiler water at the proper level
In order to produce one pound of steam, it is necessary to evaporate: - ANSWER-
one pound of water
4|Page
LOW PRESSURE BOILER BLACK SEAL EXAM NEWEST
2025/2026 COMPLETE ALL QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW VERSION!
What is the maximum penalty for performing the duties of a boiler operator with
an expired license? - ANSWER-$5,000.00
What is the purpose of an aquastat control device on a boiler system? - ANSWER-
it is used to control water temperature
In a two-pipe direct-return hot water heating system, the supply and return water
flow in the same direction. - ANSWER-false
Which of the following is not an advantage of steam heating systems? - ANSWER-
only small pumps are needed to move steam.
What is the maximum temperature allowed on all low pressure heating boilers? -
ANSWER-250 degrees F
What type of boiler is a Horizontal Return Boiler (HRT)? - ANSWER-a fire-tube
boiler
A steam heating boiler plant consists of 3 fire-tube boilers, each with a burner
input of 5,175 lbs/hr. Calculate the total boiler horsepower (BHP) of this plant. -
ANSWER-450 BHP
1|Page
, Low Pressure Boiler Black Seal Exam
Which of the following statements regarding a hydronic heating system is accurate
in its description? - ANSWER-the water circulator must take the water from the
boiler and move it through the individual terminals or heating units where the
heat is emitted and then returns the water to the boiler to be reheated.
Where on the Certificate of Inspection would you find the State of New Jersey
jurisdiction number? - ANSWER-upper left corner
Which of the following best describes the combustion chamber of a serpentine
tube heating boiler? - ANSWER-it is located below the tubes
By N.J.A.C. rules, a school with a boiler plant with a total interconnected capacity
of 100 BHP would require a properly licensed operator to be present whenever
the building was deemed occupied. - ANSWER-false
Which of the following is not a classification of a hot water system? - ANSWER-a
Hartford loop system
When bringing a steam heating plant on line from a cold start, when the ambient
conditions are about 20 degrees F, what condition are you preventing when the
pressure is increased gradually? - ANSWER-thermal shock
A boiler operator's log shall be maintained in each plant containing over: -
ANSWER-100 Boiler HP
2|Page
, Low Pressure Boiler Black Seal Exam
By definition, a boiler is an open vessel in which water is turned to steam under
pressure by the application of heat. - ANSWER-false
According to state boiler regulations, where should the boiler registration number
be located? - ANSWER-on the front of the boiler
As an operator in a plant you must always be aware of your surroundings. Which
of the following, that should be under the control of the licensed operator, can be
extremely dangerous and cause a catastrophic hazardous event if it is not
inspected annually? - ANSWER-The boiler(s) can be dangerous if not inspected
and maintained properly
The primary purpose of establishing a set of plant safety rules is to: - ANSWER-
protect workers and equipment
The ASME Code states that the setting on the high limit pressure control on a low
pressure steam boiler shall not exceed: - ANSWER-15 psig
In order to be a good operator one must have basic knowledge on the principles
of how energy works in a steam and hot water system. Which of the statements
below is correct? - ANSWER-in a heating system, in order to change state from a
liquid to a gaseous state heat must be added.
What ASME code section is used for the care and operation of heating boilers? -
ANSWER-ASME Code, Section VI
3|Page
, Low Pressure Boiler Black Seal Exam
In a hot water heating system, where would you find an expansion tank and what
is its function? - ANSWER-on the suction side of the pump to avoid negative
pressure in the system
What is the official ASME letter stamp used to denote low pressure heating
boilers? - ANSWER-H
What ASME codes are heating boilers built to? - ANSWER-Section IV
How are the sections of a CIS (cast iron sectional) boiler connected? - ANSWER-by
push nipples and bolts
What is the minimum penalty for not properly posting your license? - ANSWER-
$500.00
In a two-pipe reverse-return hot water heating system, the supply and return
water flow in the same direction. - ANSWER-True
What are the four systems required to operate a steam boiler? - ANSWER-steam,
feedwater, fuel, and draft
The most important rule in the safe operation of a steam boiler is to: - ANSWER-
keep the boiler water at the proper level
In order to produce one pound of steam, it is necessary to evaporate: - ANSWER-
one pound of water
4|Page
