MASS OIL BURNER / NFPA 31 & NORA PRACTICE (ACTUAL
2025/2026) QUESTIONS AND VERIFIED ANSWERS (100% PASS)
In a warm air system, return air duct size should never be less
than - ---Answers----80 percent of the supply
3 main causes of nozzle drip - ---Answers----Defective pump
shutoff valve, air trapped in nozzle, oil expansion in nozzle by
radiated heat
Oil burner must be how far from oil tank and panel board - ---
Answers----3 feet from electrical, 5 feet from oil tank
Safety control circuits shall be - ---Answers----2 wire, one
side grounded, with a nominal voltage not exceeding 150volts
Two or more oil burning appliances may be connected to the
same chimney as long as - ---Answers----Draft is sufficient
Air pressure switch will do what if proper draft is not proven -
---Answers----De-energize the burner control circuit
preventing the burner from operating
Burner, automatically ignited - ---Answers----Main burner
fuel may be turned on and ignited automatically
,Burner, manually ignited - ---Answers----Main burner fuel
turned on only by hand
Burner, mechanical draft - ---Answers----Burner that
includes a power driven fan to supply air for combustion
process
Burner, natural draft type - ---Answers----Burner that
depends on the natural draft from the chimney and venting
Form 1 - ---Answers----Certificate of completion
Confined spa e - ---Answers----Any space who's volume is
less than 50 cubic feet per 1,000 BTU/hr of the appliance
Constant level valve - ---Answers----Maintaining constant
level of oil for delivery to burner
Limit control - ---Answers----Responsive to changes in fluid
flow/level, pressure or temperature, shuts off energy supply if
limits are reached
Primary safety control - ---Answers----Responsive directly
to flame properties, sensing presence or absence of flame and
shutting out on safety in event of flame failure
, Safety control - ---Answers----Automatic controls (relays,
switches, etc) that are intended to prevent unsafe operation of
the equipment
Draft inducer - ---Answers----Used to increase the natural
draft from the chimney
Barometric draft regulator - ---Answers----Reduces
excessive draft to the desired value by admitting ambient air
into the appliance chimney connector
Gravity type central furnace - ---Answers----Depends
primarily on circulation of air by gravity
Gravity type furnace with fan - ---Answers----Fan is used to
overcome the internal resistance of air flow
Gravity feed burner - ---Answers----Burner that receives oil
supply by static pressure due to elevation of the oil supply
source
Installation - ---Answers----The installation of an oil burning
appliance or the change in an existing oil burner installation
Oil burner - ---Answers----Device for burning oil in heating
appliances. May be pressure atomizing gun type, horizontal or
vertical rotory type, or mechanical or natural draft vaporizing
type
2025/2026) QUESTIONS AND VERIFIED ANSWERS (100% PASS)
In a warm air system, return air duct size should never be less
than - ---Answers----80 percent of the supply
3 main causes of nozzle drip - ---Answers----Defective pump
shutoff valve, air trapped in nozzle, oil expansion in nozzle by
radiated heat
Oil burner must be how far from oil tank and panel board - ---
Answers----3 feet from electrical, 5 feet from oil tank
Safety control circuits shall be - ---Answers----2 wire, one
side grounded, with a nominal voltage not exceeding 150volts
Two or more oil burning appliances may be connected to the
same chimney as long as - ---Answers----Draft is sufficient
Air pressure switch will do what if proper draft is not proven -
---Answers----De-energize the burner control circuit
preventing the burner from operating
Burner, automatically ignited - ---Answers----Main burner
fuel may be turned on and ignited automatically
,Burner, manually ignited - ---Answers----Main burner fuel
turned on only by hand
Burner, mechanical draft - ---Answers----Burner that
includes a power driven fan to supply air for combustion
process
Burner, natural draft type - ---Answers----Burner that
depends on the natural draft from the chimney and venting
Form 1 - ---Answers----Certificate of completion
Confined spa e - ---Answers----Any space who's volume is
less than 50 cubic feet per 1,000 BTU/hr of the appliance
Constant level valve - ---Answers----Maintaining constant
level of oil for delivery to burner
Limit control - ---Answers----Responsive to changes in fluid
flow/level, pressure or temperature, shuts off energy supply if
limits are reached
Primary safety control - ---Answers----Responsive directly
to flame properties, sensing presence or absence of flame and
shutting out on safety in event of flame failure
, Safety control - ---Answers----Automatic controls (relays,
switches, etc) that are intended to prevent unsafe operation of
the equipment
Draft inducer - ---Answers----Used to increase the natural
draft from the chimney
Barometric draft regulator - ---Answers----Reduces
excessive draft to the desired value by admitting ambient air
into the appliance chimney connector
Gravity type central furnace - ---Answers----Depends
primarily on circulation of air by gravity
Gravity type furnace with fan - ---Answers----Fan is used to
overcome the internal resistance of air flow
Gravity feed burner - ---Answers----Burner that receives oil
supply by static pressure due to elevation of the oil supply
source
Installation - ---Answers----The installation of an oil burning
appliance or the change in an existing oil burner installation
Oil burner - ---Answers----Device for burning oil in heating
appliances. May be pressure atomizing gun type, horizontal or
vertical rotory type, or mechanical or natural draft vaporizing
type
