NJ BLUE SEAL QUESTIONS AND
ANSWERS WITH COMPLETE
SOLUTIONS ALREADY PASSED!!!
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
, 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
ANSWERS WITH COMPLETE
SOLUTIONS ALREADY PASSED!!!
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
, 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
