©BRIGHTSTARS 2025 ALL RIGHTS RESERVED 9:46 AM A+
NJ Blue Seal Exam Questions And Answers
|Latest 2025 | Guaranteed Pass
Why must alternators run at a constant speed? - Answer✔In order to maintain frequency
What does h represent? - Answer✔The sum of latent heat and sensible heat
If your cold water pump discharge pressure gauge indicated 346 psi, what would be the head in
feet? - Answer✔346 x 2.31= 800psi
Formula for finding Horsepower in a Kilowatt - Answer✔1.341 x kW = HP
If you have a 500 k/W generator, what is the HP? - Answer✔1.341 x 500 = 670.5
What is the formula for finding the Factor of Evaporation ? - Answer✔FE Hs -(Tfw - 32)/970.3
What chemicals cause hard scale in a boiler? - Answer✔Calcium carbonate and magnesium
carbonate
What is the critical speed of a turbine? - Answer✔The speed at which it vibrates the most
An intercooler is found: - Answer✔In a two stage air compressor
1
, ©BRIGHTSTARS 2025 ALL RIGHTS RESERVED 9:46 AM A+
What protects a turbine shaft from bowing? - Answer✔A turning gear
When do you lubricate a turbine with oil? - Answer✔Before starting it up
What is the formula used to calculate Btu's in a pound of fuel? - Answer✔Btu's/lb. fuel=
17,687(57.7 x API) Plus (+) then Times (x)
What suction performance factor is a characteristic of the pump and varies with pump design,
pump size and operating conditions? - Answer✔NPSH
Licenses can be renewed ____ days before expiration. - Answer✔60
To be eligible for 1-C Blue, you must have: - Answer✔High Pressure license & 6 mos. operating
over 500 horsepower boilers
The formula for Torque - Answer✔T = HP x 5252/ RPM
The formula for Frequency - Answer✔F=N x RPM/120
1.34 kilowatt = - Answer✔1 HP
33,475 Btu's= - Answer✔1 Boiler HP
2545 Btu's= - Answer✔1 Horsepower Hour
970.3 Btu's = - Answer✔Latent Heat of Evaporation
2
NJ Blue Seal Exam Questions And Answers
|Latest 2025 | Guaranteed Pass
Why must alternators run at a constant speed? - Answer✔In order to maintain frequency
What does h represent? - Answer✔The sum of latent heat and sensible heat
If your cold water pump discharge pressure gauge indicated 346 psi, what would be the head in
feet? - Answer✔346 x 2.31= 800psi
Formula for finding Horsepower in a Kilowatt - Answer✔1.341 x kW = HP
If you have a 500 k/W generator, what is the HP? - Answer✔1.341 x 500 = 670.5
What is the formula for finding the Factor of Evaporation ? - Answer✔FE Hs -(Tfw - 32)/970.3
What chemicals cause hard scale in a boiler? - Answer✔Calcium carbonate and magnesium
carbonate
What is the critical speed of a turbine? - Answer✔The speed at which it vibrates the most
An intercooler is found: - Answer✔In a two stage air compressor
1
, ©BRIGHTSTARS 2025 ALL RIGHTS RESERVED 9:46 AM A+
What protects a turbine shaft from bowing? - Answer✔A turning gear
When do you lubricate a turbine with oil? - Answer✔Before starting it up
What is the formula used to calculate Btu's in a pound of fuel? - Answer✔Btu's/lb. fuel=
17,687(57.7 x API) Plus (+) then Times (x)
What suction performance factor is a characteristic of the pump and varies with pump design,
pump size and operating conditions? - Answer✔NPSH
Licenses can be renewed ____ days before expiration. - Answer✔60
To be eligible for 1-C Blue, you must have: - Answer✔High Pressure license & 6 mos. operating
over 500 horsepower boilers
The formula for Torque - Answer✔T = HP x 5252/ RPM
The formula for Frequency - Answer✔F=N x RPM/120
1.34 kilowatt = - Answer✔1 HP
33,475 Btu's= - Answer✔1 Boiler HP
2545 Btu's= - Answer✔1 Horsepower Hour
970.3 Btu's = - Answer✔Latent Heat of Evaporation
2
