1|Page
NJ Black Seal Exam Newest 2026 Complete All
Questions And Correct Detailed Answers (Verified
Answers) |Already Graded A+||Newest Version!!!
What ASME code symbol is used to denote a high
pressure power boiler? - Answer-S
According to the regulation, a licensed operator on watch
shall give constant attention and remain within sight and
natural sound in both HP and LP boilers. T / F - Answer-
false
What is the range of capacity that a High Pressure Boiler
Operator can be the Chief Engineer and work as Shift
Engineer (stand watch) based on the 12:90 Boiler,
Pressure Vessel and Refrigeration rules? - Answer-Can
act as Chief Engineer and stand watch of a plant with a
minimum capacity of 100 HP and up to 500 HP
Any person found performing the duties of a license and
holding an expired license, shall be subject to what type of
penalty? - Answer-They shall be subject to a min penalty
of $500 up to a max of $5,000 per day.
,2|Page
Pursuant to N.J.A.C. 12:90, what is the temperature and
pressure that defines a high-temperature hot water
heating boiler? - Answer-exceeds 250 degrees F at 160
psi
Why are staybolts used in the construction of HRT power
boilers? - Answer-to strengthen and support flat plates on
a fire-tube boiler
In a fire-tube boiler, how are the tubes usually attached to
the tube sheet? - Answer-by rolling the tubes and beading
the ends
How are the tube sheets supported in a fire-tube boiler? -
Answer-by the shell, stays, and tubes
Where would you find downcomer tubes? - Answer-in
water-tube boilers
Why are baffles used in the steam drums of water-tube
boilers? - Answer-to prevent the carry-over of water
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In the State of New Jersey, when is it permissible to have
only one bottom blow off valve on a boiler? - Answer-when
the MAWP does not exceed 100 psi
The maximum size of the bottom blowdown line and the
surface blowdown line is: - Answer-2.5 inches (2.5")
N.J.A.C. 12:90 requires that sewer lines be protected from
high temperatures and pressure coming from boiler blow-
off lines. What device is used for this purpose? - Answer-a
blowdown tank
By N.J.A.C. 12:90 rules, what is the minimum thickness
allowed for atmospheric type blowdown tank? - Answer-
5/16 inch
What effect would frequent blowing down of a boiler have
on the system? - Answer-blow down heat loss
When a low-water fuel cutoff (LWFCO) has activated on a
hot water heating boiler what shall happen? - Answer-
Operation of the LWFCO shall cause a safety shutdown
and lockout, requiring a manual reset
NJ Black Seal Exam Newest 2026 Complete All
Questions And Correct Detailed Answers (Verified
Answers) |Already Graded A+||Newest Version!!!
What ASME code symbol is used to denote a high
pressure power boiler? - Answer-S
According to the regulation, a licensed operator on watch
shall give constant attention and remain within sight and
natural sound in both HP and LP boilers. T / F - Answer-
false
What is the range of capacity that a High Pressure Boiler
Operator can be the Chief Engineer and work as Shift
Engineer (stand watch) based on the 12:90 Boiler,
Pressure Vessel and Refrigeration rules? - Answer-Can
act as Chief Engineer and stand watch of a plant with a
minimum capacity of 100 HP and up to 500 HP
Any person found performing the duties of a license and
holding an expired license, shall be subject to what type of
penalty? - Answer-They shall be subject to a min penalty
of $500 up to a max of $5,000 per day.
,2|Page
Pursuant to N.J.A.C. 12:90, what is the temperature and
pressure that defines a high-temperature hot water
heating boiler? - Answer-exceeds 250 degrees F at 160
psi
Why are staybolts used in the construction of HRT power
boilers? - Answer-to strengthen and support flat plates on
a fire-tube boiler
In a fire-tube boiler, how are the tubes usually attached to
the tube sheet? - Answer-by rolling the tubes and beading
the ends
How are the tube sheets supported in a fire-tube boiler? -
Answer-by the shell, stays, and tubes
Where would you find downcomer tubes? - Answer-in
water-tube boilers
Why are baffles used in the steam drums of water-tube
boilers? - Answer-to prevent the carry-over of water
, 3|Page
In the State of New Jersey, when is it permissible to have
only one bottom blow off valve on a boiler? - Answer-when
the MAWP does not exceed 100 psi
The maximum size of the bottom blowdown line and the
surface blowdown line is: - Answer-2.5 inches (2.5")
N.J.A.C. 12:90 requires that sewer lines be protected from
high temperatures and pressure coming from boiler blow-
off lines. What device is used for this purpose? - Answer-a
blowdown tank
By N.J.A.C. 12:90 rules, what is the minimum thickness
allowed for atmospheric type blowdown tank? - Answer-
5/16 inch
What effect would frequent blowing down of a boiler have
on the system? - Answer-blow down heat loss
When a low-water fuel cutoff (LWFCO) has activated on a
hot water heating boiler what shall happen? - Answer-
Operation of the LWFCO shall cause a safety shutdown
and lockout, requiring a manual reset
