NIULPE PRACTICE TEST 2025/26 QUESTIONS WITH
100% VERIFIED ANSWERS|| LATEST UPDATE 2025/26
The most popular name for a variable resistor is a: -CORRECTANSWER Potentiometer
All venting of a natural gas train should be vented to: -CORRECTANSWER Outside
atmosphere
An electric device that uses a primary and secondary coil is a: -CORRECTANSWER
Transformer
The main function of the flame safe guard system is to: -CORRECTANSWER Close the
main fuel valve if the flame goes out
Harmonic frequencies are: -CORRECTANSWER Detrimental to electric equipment
To convert degrees Celsius into Fahrenheit, the formula is: -CORRECTANSWER (9/5 x
C) + 32
32 degree F is equal to __________C degree: -CORRECTANSWER 0
Which of the following causes a loss of efficiency in a refrigeration system with an air
cooled condenser: -CORRECTANSWER Dirty condenser fins
, Cold air affects the amount of _______________draft produced: -CORRECTANSWER
Natural
A siphon fitting protects the steam pressure gauge from: -CORRECTANSWER High
temperature steam from entering the Bourdon Tube
According to the ASME Boiler and Pressure Vessel Code, a water column has to be
installed on all steam boilers: -CORRECTANSWER False
To reduce the free oxygen in the boiler feedwater it must be: -CORRECTANSWER
Heated and/or chemically treated
The definition of a British Thermal Unit is: -CORRECTANSWER The amount of heat
required to raise 1 pound of water 1 degree F
A strainer in the suction line pump on a No. 6 fuel oil system should be of
________mesh -CORRECTANSWER 16 to 20
When electrons flow: -CORRECTANSWER One electron knocks another electron out of
orbit
Convert the temperature 365 degree Fahrenheit to Rankin: -CORRECTANSWER 825 R
100% VERIFIED ANSWERS|| LATEST UPDATE 2025/26
The most popular name for a variable resistor is a: -CORRECTANSWER Potentiometer
All venting of a natural gas train should be vented to: -CORRECTANSWER Outside
atmosphere
An electric device that uses a primary and secondary coil is a: -CORRECTANSWER
Transformer
The main function of the flame safe guard system is to: -CORRECTANSWER Close the
main fuel valve if the flame goes out
Harmonic frequencies are: -CORRECTANSWER Detrimental to electric equipment
To convert degrees Celsius into Fahrenheit, the formula is: -CORRECTANSWER (9/5 x
C) + 32
32 degree F is equal to __________C degree: -CORRECTANSWER 0
Which of the following causes a loss of efficiency in a refrigeration system with an air
cooled condenser: -CORRECTANSWER Dirty condenser fins
, Cold air affects the amount of _______________draft produced: -CORRECTANSWER
Natural
A siphon fitting protects the steam pressure gauge from: -CORRECTANSWER High
temperature steam from entering the Bourdon Tube
According to the ASME Boiler and Pressure Vessel Code, a water column has to be
installed on all steam boilers: -CORRECTANSWER False
To reduce the free oxygen in the boiler feedwater it must be: -CORRECTANSWER
Heated and/or chemically treated
The definition of a British Thermal Unit is: -CORRECTANSWER The amount of heat
required to raise 1 pound of water 1 degree F
A strainer in the suction line pump on a No. 6 fuel oil system should be of
________mesh -CORRECTANSWER 16 to 20
When electrons flow: -CORRECTANSWER One electron knocks another electron out of
orbit
Convert the temperature 365 degree Fahrenheit to Rankin: -CORRECTANSWER 825 R
