NJ BLACK SEAL FINAL LATEST
EXAM 2026/2027 WITH 180 REAL
QUESTIONS AND 100% CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED PASS | NJ BLACK
SEAL NEW EXAM VERSION
Is it necessary to provide a disconnect switch at an accessible location at the
boiler? - ANSWER-An electrical disconnect switch shall be installed at the boiler
at an accessible location with cover plate that can be locked out in open position.
When a license is improperly or not posted, what is the amount of penalty or fine
that may be imposed on the engineer, by the state? - ANSWER-$500
When preparing a boiler for a hydrostatic test, what is the best temperature for the
boiler water? - ANSWER-75 Degrees
Where in the NJ Administrative Code (NJAC) are the duties of licensed persons
established? - ANSWER-N.J.A.C 12:90- 3.10
,Which is the act that a Mechanical Inspection Bureau exists in New Jersey? -
ANSWER-The NJ Statute Annotated (NJSA) 34:1-38:1
Who is responsible for obtaining pertinent operating, testing, servicing and
cleaning instructions for control and safety devices? - ANSWER-It is the
responsibility of the installing contractor to deliver all the to the user/ owner.
By ASME code, the size of the water column connections to a boiler must be a
minimum of? - ANSWER-1'' inch minimum.
What is the proper procedure for returning a gage glass to service, after installing a
new glass? - ANSWER-Open drain and crack open top valve.
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 physical manual reset.
What would occur if there was a drop in velocity of the liquid flowing through a
heat exchanger? - ANSWER-The temp of the liquid would increase.
Which of the following could cause a tube in a high temp hot water boiler to
overheat? - ANSWER-Poor circulation.
Which of the following is the proper method for testing low-water cut off device? -
ANSWER-Lower the water level in the boiler until the burner shuts down.
A column of water 1-inch squared and 1 foot high weighs how much? - ANSWER-
.43 LBS
, Which of the following valves is used in a steam feedwater supply line to control
the direction of fluid flow and prevent backflow in a system? - ANSWER-Check
valve
Most steam boils are equipped for the gauge glass and water column to be blown
down how often? - ANSWER-Daily/ once a day
What is the basic function of the low water cut off device? - ANSWER-To shut off
fuel supply to burner
A three element feedwater regulator is controlled by what means? - ANSWER-
Steam flow, Feedwater flow and drum level.
A two element feedwater regulator is controlled by what means? - ANSWER-
Water level and steam flow rate.
What condition would cause a feedwater pump to become vapor bound? -
ANSWER-The feedwater temperature is too hot.
How are the tube sheets supported in a fire-tube boiler? - ANSWER-By the shell,
stays and tubes
In a fire-tube boiler, how are the tubes usually attached to the tube sheet -
ANSWER-By rolling the tubes and beading the ends
Where would you find downcomer tubes? - ANSWER-In water-tube boilers
EXAM 2026/2027 WITH 180 REAL
QUESTIONS AND 100% CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED PASS | NJ BLACK
SEAL NEW EXAM VERSION
Is it necessary to provide a disconnect switch at an accessible location at the
boiler? - ANSWER-An electrical disconnect switch shall be installed at the boiler
at an accessible location with cover plate that can be locked out in open position.
When a license is improperly or not posted, what is the amount of penalty or fine
that may be imposed on the engineer, by the state? - ANSWER-$500
When preparing a boiler for a hydrostatic test, what is the best temperature for the
boiler water? - ANSWER-75 Degrees
Where in the NJ Administrative Code (NJAC) are the duties of licensed persons
established? - ANSWER-N.J.A.C 12:90- 3.10
,Which is the act that a Mechanical Inspection Bureau exists in New Jersey? -
ANSWER-The NJ Statute Annotated (NJSA) 34:1-38:1
Who is responsible for obtaining pertinent operating, testing, servicing and
cleaning instructions for control and safety devices? - ANSWER-It is the
responsibility of the installing contractor to deliver all the to the user/ owner.
By ASME code, the size of the water column connections to a boiler must be a
minimum of? - ANSWER-1'' inch minimum.
What is the proper procedure for returning a gage glass to service, after installing a
new glass? - ANSWER-Open drain and crack open top valve.
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 physical manual reset.
What would occur if there was a drop in velocity of the liquid flowing through a
heat exchanger? - ANSWER-The temp of the liquid would increase.
Which of the following could cause a tube in a high temp hot water boiler to
overheat? - ANSWER-Poor circulation.
Which of the following is the proper method for testing low-water cut off device? -
ANSWER-Lower the water level in the boiler until the burner shuts down.
A column of water 1-inch squared and 1 foot high weighs how much? - ANSWER-
.43 LBS
, Which of the following valves is used in a steam feedwater supply line to control
the direction of fluid flow and prevent backflow in a system? - ANSWER-Check
valve
Most steam boils are equipped for the gauge glass and water column to be blown
down how often? - ANSWER-Daily/ once a day
What is the basic function of the low water cut off device? - ANSWER-To shut off
fuel supply to burner
A three element feedwater regulator is controlled by what means? - ANSWER-
Steam flow, Feedwater flow and drum level.
A two element feedwater regulator is controlled by what means? - ANSWER-
Water level and steam flow rate.
What condition would cause a feedwater pump to become vapor bound? -
ANSWER-The feedwater temperature is too hot.
How are the tube sheets supported in a fire-tube boiler? - ANSWER-By the shell,
stays and tubes
In a fire-tube boiler, how are the tubes usually attached to the tube sheet -
ANSWER-By rolling the tubes and beading the ends
Where would you find downcomer tubes? - ANSWER-In water-tube boilers
