7/4/26, 11:46 AM NJ Blue Seal Exam Comprehensive Questions and Answers (Verified Answers) Updated (Actual Exam) 2025\2026 LATEST VERSI…
NJ Blue Seal Exam Comprehensive Questions and
Answers (Verified Answers) Updated (Actual
Exam) 2025\2026 LATEST VERSION!!
Save Add to calendar
Terms in this set (71)
Why must alternators run at a In order to maintain frequency
constant speed?
What does h represent? The sum of latent heat and sensible heat
If your cold water pump discharge 346 x 2.31= 800psi
pressure gauge indicated 346 psi,
what would be the head in feet?
Formula for finding Horsepower in a 1.341 x kW = HP
Kilowatt
If you have a 500 k/W generator, 1.341 x 500 = 670.5
what is the HP?
What is the formula for finding the FE Hs -(Tfw - 32)/970.3
Factor of Evaporation ?
What chemicals cause hard scale in a Calcium carbonate and magnesium carbonate
boiler?
https://quizlet.com/1193092213/nj-blue-seal-exam-comprehensive-questions-and-answers-verified-answers-updated-actual-exam-20252026-latest-ver… 1/8
, 7/4/26, 11:46 AM NJ Blue Seal Exam Comprehensive Questions and Answers (Verified Answers) Updated (Actual Exam) 2025\2026 LATEST VERSI…
What is the critical speed of a The speed at which it vibrates the most
turbine?
An intercooler is found: In a two stage air compressor
What protects a turbine shaft from A turning gear
bowing?
When do you lubricate a turbine with Before starting it up
oil?
What is the formula used to calculate Btu's/lb. fuel= 17,687(57.7 x API) Plus (+) then Times
Btu's in a pound of fuel? (x)
What suction performance factor is a NPSH
characteristic of the pump and varies
with pump design, pump size and
operating conditions?
Licenses can be renewed ____ days 60
before expiration.
To be eligible for 1-C Blue, you must High Pressure license & 6 mos. operating over 500
have: horsepower boilers
The formula for Torque T = HP x 5252/ RPM
The formula for Frequency F=N x RPM/120
1.34 kilowatt = 1 HP
33,475 Btu's= 1 Boiler HP
https://quizlet.com/1193092213/nj-blue-seal-exam-comprehensive-questions-and-answers-verified-answers-updated-actual-exam-20252026-latest-ver… 2/8
NJ Blue Seal Exam Comprehensive Questions and
Answers (Verified Answers) Updated (Actual
Exam) 2025\2026 LATEST VERSION!!
Save Add to calendar
Terms in this set (71)
Why must alternators run at a In order to maintain frequency
constant speed?
What does h represent? The sum of latent heat and sensible heat
If your cold water pump discharge 346 x 2.31= 800psi
pressure gauge indicated 346 psi,
what would be the head in feet?
Formula for finding Horsepower in a 1.341 x kW = HP
Kilowatt
If you have a 500 k/W generator, 1.341 x 500 = 670.5
what is the HP?
What is the formula for finding the FE Hs -(Tfw - 32)/970.3
Factor of Evaporation ?
What chemicals cause hard scale in a Calcium carbonate and magnesium carbonate
boiler?
https://quizlet.com/1193092213/nj-blue-seal-exam-comprehensive-questions-and-answers-verified-answers-updated-actual-exam-20252026-latest-ver… 1/8
, 7/4/26, 11:46 AM NJ Blue Seal Exam Comprehensive Questions and Answers (Verified Answers) Updated (Actual Exam) 2025\2026 LATEST VERSI…
What is the critical speed of a The speed at which it vibrates the most
turbine?
An intercooler is found: In a two stage air compressor
What protects a turbine shaft from A turning gear
bowing?
When do you lubricate a turbine with Before starting it up
oil?
What is the formula used to calculate Btu's/lb. fuel= 17,687(57.7 x API) Plus (+) then Times
Btu's in a pound of fuel? (x)
What suction performance factor is a NPSH
characteristic of the pump and varies
with pump design, pump size and
operating conditions?
Licenses can be renewed ____ days 60
before expiration.
To be eligible for 1-C Blue, you must High Pressure license & 6 mos. operating over 500
have: horsepower boilers
The formula for Torque T = HP x 5252/ RPM
The formula for Frequency F=N x RPM/120
1.34 kilowatt = 1 HP
33,475 Btu's= 1 Boiler HP
https://quizlet.com/1193092213/nj-blue-seal-exam-comprehensive-questions-and-answers-verified-answers-updated-actual-exam-20252026-latest-ver… 2/8
