NORA Oil Heat Exam Actual Questions
with verified correct detailed Answers
Graded A+ Latest Update 2025
Nozzle after-drip can be caused by?
A) Too large a nozzle
B)Dirty Oil
C)Air in the nozzle line >"cracked line" --- correct answer ---C)Air in
the nozzle line
When will a barometric damper open wider?
A)Hot summer day
B)Cold winter day
C)No wind day --- correct answer ---B)Cold winter day (there is
higher draft)
When is a burner "over fired"?
A)When the nozzle gph is too high
B)When the pressure is too high
C)When the stack temperature is too high
, D)All --- correct answer ---D) All
When is a power venter used?
A)To ensure sufficient draft
B) When horizontal venting
C)On every installation --- correct answer ---A)To ensure sufficient
draft
Co2 "red fluid" is good for how many tests?
A)100
B)200
C)300
D)400 --- correct answer ---B)200
A Co2 test indicates
A)Smoke
B)Complete Combustion
C)Excess Air
D)Carbon Monoxide --- correct answer ---C)Excess Air
with verified correct detailed Answers
Graded A+ Latest Update 2025
Nozzle after-drip can be caused by?
A) Too large a nozzle
B)Dirty Oil
C)Air in the nozzle line >"cracked line" --- correct answer ---C)Air in
the nozzle line
When will a barometric damper open wider?
A)Hot summer day
B)Cold winter day
C)No wind day --- correct answer ---B)Cold winter day (there is
higher draft)
When is a burner "over fired"?
A)When the nozzle gph is too high
B)When the pressure is too high
C)When the stack temperature is too high
, D)All --- correct answer ---D) All
When is a power venter used?
A)To ensure sufficient draft
B) When horizontal venting
C)On every installation --- correct answer ---A)To ensure sufficient
draft
Co2 "red fluid" is good for how many tests?
A)100
B)200
C)300
D)400 --- correct answer ---B)200
A Co2 test indicates
A)Smoke
B)Complete Combustion
C)Excess Air
D)Carbon Monoxide --- correct answer ---C)Excess Air
