1
BLACK SEAL TEST 150 QUESTIONS AND CORRECT
DETAILED ANSWERS |NEWLY UPDATED VERSION
FOR 2025-2026 | RATED A +
Where on the Certificate of Inspection would you find the State of New
Jersey jurisdiction number? - ANSWER- upper left corner
What is the maximum temperature and pressure a hot water supply
boiler can have to be considered a low pressure boiler? - ANSWER- 160
psi at 250 degrees F
The observed pressure of a heating system when it is in an idle or non-
operating mode is called: - ANSWER- This is known as the static
pressure of the system
The primary purpose of establishing a set of plant safety rules is to: -
ANSWER- protect the workers and equipment
What are the four systems required to operate a steam boiler? -
ANSWER- steam, feedwater, fuel and draft
Low pressure boilers shall comply with what section of the ASME code?
- ANSWER- IV
,2
What is the official ASME letter stamp used to denote low pressure
heating boilers? - ANSWER- H
Which of the following statements regarding a hydronic heating system
is accurate in its description?
1. the water circulation must take the water from the boiler and move it
through the individual terminals or heating units where the heat is
emitted and then return the water to the condensate tank.
2. the water circulator takes the water from the feed pump discharge and
moves it through the individual terminals or heating units where the heat
is absorbed and any remaining steam turns to liquid then it is returned to
the boiler to be reused again.
3. 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.
4. none of the statements provides an accurate description for a hydronic
heating system. - ANSWER- 3
In a hydronic system, which of the following statements is correct
regarding the heat transfer efficiency of a heating system? - ANSWER-
in a hydronic heating system, if a system has too much air it can't
properly transfer heat
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
By definition, a boiler is an open vessel in which water is turned to
steam under pressure by the application of heat. True or False? -
ANSWER- False
, 3
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.
True or False? - ANSWER- False
According to state boiler regulations, where should the boiler
registration number be located? - ANSWER- on the front of the boiler
A boiler operator's log shall be maintained in each plant containing over:
- ANSWER- 100 Boiler Hp
If in good standing, an expired license can be renewed within a period
of: - ANSWER- 3 years
The low pressure black seal license will permit you to operate boiler
plants of up to: - ANSWER- no limit
What is the maximum penalty for performing the duties of a boiler
operator with an expired license? - ANSWER- $5,000.00
Identify the correct type of heating system, conditions and the Btu value
given in the statement.
1. in a steam heating system to vaporize a pound of water having a
temperature of 210˚F at barometric pressure, 180 BTU's must be added.
BLACK SEAL TEST 150 QUESTIONS AND CORRECT
DETAILED ANSWERS |NEWLY UPDATED VERSION
FOR 2025-2026 | RATED A +
Where on the Certificate of Inspection would you find the State of New
Jersey jurisdiction number? - ANSWER- upper left corner
What is the maximum temperature and pressure a hot water supply
boiler can have to be considered a low pressure boiler? - ANSWER- 160
psi at 250 degrees F
The observed pressure of a heating system when it is in an idle or non-
operating mode is called: - ANSWER- This is known as the static
pressure of the system
The primary purpose of establishing a set of plant safety rules is to: -
ANSWER- protect the workers and equipment
What are the four systems required to operate a steam boiler? -
ANSWER- steam, feedwater, fuel and draft
Low pressure boilers shall comply with what section of the ASME code?
- ANSWER- IV
,2
What is the official ASME letter stamp used to denote low pressure
heating boilers? - ANSWER- H
Which of the following statements regarding a hydronic heating system
is accurate in its description?
1. the water circulation must take the water from the boiler and move it
through the individual terminals or heating units where the heat is
emitted and then return the water to the condensate tank.
2. the water circulator takes the water from the feed pump discharge and
moves it through the individual terminals or heating units where the heat
is absorbed and any remaining steam turns to liquid then it is returned to
the boiler to be reused again.
3. 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.
4. none of the statements provides an accurate description for a hydronic
heating system. - ANSWER- 3
In a hydronic system, which of the following statements is correct
regarding the heat transfer efficiency of a heating system? - ANSWER-
in a hydronic heating system, if a system has too much air it can't
properly transfer heat
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
By definition, a boiler is an open vessel in which water is turned to
steam under pressure by the application of heat. True or False? -
ANSWER- False
, 3
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.
True or False? - ANSWER- False
According to state boiler regulations, where should the boiler
registration number be located? - ANSWER- on the front of the boiler
A boiler operator's log shall be maintained in each plant containing over:
- ANSWER- 100 Boiler Hp
If in good standing, an expired license can be renewed within a period
of: - ANSWER- 3 years
The low pressure black seal license will permit you to operate boiler
plants of up to: - ANSWER- no limit
What is the maximum penalty for performing the duties of a boiler
operator with an expired license? - ANSWER- $5,000.00
Identify the correct type of heating system, conditions and the Btu value
given in the statement.
1. in a steam heating system to vaporize a pound of water having a
temperature of 210˚F at barometric pressure, 180 BTU's must be added.
