NJ BLACK SEAL LOW PRESSURE 1 TO 3
LATEST EXAM 2026/2027 WITH QUESTIONS
AND EXPERT-VERIFIED CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED PASS | NJ BLACK SEAL LOW
PRESSURE ACTUAL EXAM 2026
What section of the ASME code do hot water heating boilers fall under? -
ANSWER-Section IV
Which describes the combustion chamber of a serpentine tube heating boiler? -
ANSWER-located below the tubes
What should you do if you walked into a boiler room and the safety valves were
popped? - ANSWER-secure the fire at the burner
What letter stamp denotes a low pressure boiler? - ANSWER-H
In NJ, how often should boilers over 100 horsepower be inspected internally &
externally? - ANSWER-annually
,A manometer is calibrated in what units of measurement? - ANSWER-inches of
water
Bottom blowdown is best performed when the boiler is _____. - ANSWER-under
light load
What is the main purpose of a check valve on the boiler feedwater line? -
ANSWER-allow flow in one direction only
The main function of a water column on a steam pressure boiler is to: - ANSWER-
slow down movement o water to get an accurate reading of water levels
A steam pressure gauge is designed to show steam calibrated in: - ANSWER-
pounds per square inch
The primary function of the MBCS (micro burner combustion system) is: -
ANSWER-combustion safety
What is the purpose of an aquastat? - ANSWER-controls water temperature
What is the name of the device used to keep live steam from getting into a pressure
gauge? - ANSWER-siphon loop
What is the minimum temperature at which a hot water heating boiler should be
operated at to prevent flue gas condensation? - ANSWER-170 degrees
What is the name of the science that is used for heating while using water as a
conveying medium? - ANSWER-hydronics
, The basic function of an automatic feedwater regulator on a boiler is to: -
ANSWER-maintain proper water level
If a one square inch column of water is one foot tall, how much does it weigh? -
ANSWER-.433 lbs
Where is the flame sensing device located on a boiler? - ANSWER-front
Cracking of the boiler metal can be caused by: - ANSWER-caustic embrittlement
How would you test the operation of the flame failure device? - ANSWER-by
shutting off the fuel supply valve
Where are the combustible gases located in a water tube boiler? - ANSWER-
flowing around the tubes
What are you preventing by increasing the pressure within a cold boiler gradually?
- ANSWER-thermal shock
When performing a hydrostatic test, the pressure on the boiler should not exceed: -
ANSWER-10 psi above 1.5 times the MAWP
A boiler operator log must be maintained in a boiler room containing over: -
ANSWER-100 horsepower
If a flame sensing device notices that there is a flame failure, what device does it
secure? - ANSWER-fuel solenoid valve
LATEST EXAM 2026/2027 WITH QUESTIONS
AND EXPERT-VERIFIED CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED PASS | NJ BLACK SEAL LOW
PRESSURE ACTUAL EXAM 2026
What section of the ASME code do hot water heating boilers fall under? -
ANSWER-Section IV
Which describes the combustion chamber of a serpentine tube heating boiler? -
ANSWER-located below the tubes
What should you do if you walked into a boiler room and the safety valves were
popped? - ANSWER-secure the fire at the burner
What letter stamp denotes a low pressure boiler? - ANSWER-H
In NJ, how often should boilers over 100 horsepower be inspected internally &
externally? - ANSWER-annually
,A manometer is calibrated in what units of measurement? - ANSWER-inches of
water
Bottom blowdown is best performed when the boiler is _____. - ANSWER-under
light load
What is the main purpose of a check valve on the boiler feedwater line? -
ANSWER-allow flow in one direction only
The main function of a water column on a steam pressure boiler is to: - ANSWER-
slow down movement o water to get an accurate reading of water levels
A steam pressure gauge is designed to show steam calibrated in: - ANSWER-
pounds per square inch
The primary function of the MBCS (micro burner combustion system) is: -
ANSWER-combustion safety
What is the purpose of an aquastat? - ANSWER-controls water temperature
What is the name of the device used to keep live steam from getting into a pressure
gauge? - ANSWER-siphon loop
What is the minimum temperature at which a hot water heating boiler should be
operated at to prevent flue gas condensation? - ANSWER-170 degrees
What is the name of the science that is used for heating while using water as a
conveying medium? - ANSWER-hydronics
, The basic function of an automatic feedwater regulator on a boiler is to: -
ANSWER-maintain proper water level
If a one square inch column of water is one foot tall, how much does it weigh? -
ANSWER-.433 lbs
Where is the flame sensing device located on a boiler? - ANSWER-front
Cracking of the boiler metal can be caused by: - ANSWER-caustic embrittlement
How would you test the operation of the flame failure device? - ANSWER-by
shutting off the fuel supply valve
Where are the combustible gases located in a water tube boiler? - ANSWER-
flowing around the tubes
What are you preventing by increasing the pressure within a cold boiler gradually?
- ANSWER-thermal shock
When performing a hydrostatic test, the pressure on the boiler should not exceed: -
ANSWER-10 psi above 1.5 times the MAWP
A boiler operator log must be maintained in a boiler room containing over: -
ANSWER-100 horsepower
If a flame sensing device notices that there is a flame failure, what device does it
secure? - ANSWER-fuel solenoid valve
