Nora chapter 5 & 6 questions with
verified answers
metering - correct answer ✔✔ a nozzle delivers a fixed amount of atomized fuel to the
combustion chamber
GPH - correct answer ✔✔ gallons per hour
patterning - correct answer ✔✔ a nozzle is expected too perform the right angle spray for
combustion area
hollow cone pattern - correct answer ✔✔ used on low firing units
solid cone pattern - correct answer ✔✔ used for long fires
semi solid pattern - correct answer ✔✔ between solid and hollow
main causes of nozzle failure - correct answer ✔✔ excessive heat and contamination
with gauge after lock out pressure drops - correct answer ✔✔ 20%
check valves - correct answer ✔✔ eliminate incomplete atomization
good heating oil combustion rules - correct answer ✔✔ 1.oil must be atomized
2.oil must burn in complete suspension
verified answers
metering - correct answer ✔✔ a nozzle delivers a fixed amount of atomized fuel to the
combustion chamber
GPH - correct answer ✔✔ gallons per hour
patterning - correct answer ✔✔ a nozzle is expected too perform the right angle spray for
combustion area
hollow cone pattern - correct answer ✔✔ used on low firing units
solid cone pattern - correct answer ✔✔ used for long fires
semi solid pattern - correct answer ✔✔ between solid and hollow
main causes of nozzle failure - correct answer ✔✔ excessive heat and contamination
with gauge after lock out pressure drops - correct answer ✔✔ 20%
check valves - correct answer ✔✔ eliminate incomplete atomization
good heating oil combustion rules - correct answer ✔✔ 1.oil must be atomized
2.oil must burn in complete suspension
