1|Page
OIL HEAT EXAM LATEST 2025 ACTUAL EXAM WITH COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS (100% VERIFIED
ANSWERS) |ALREADY GRADED A+| ||PROFESSOR VERIFIED||
||BRANDNEW!!!||
The valve used to prevent gravity circulation through the system
when the boiler maintains - ANSWER-Flow control valve
steps of the 8 steps of no heat call - ANSWER-1. Check for
voltage 2. Check for oil in fire box 3 reset primary control 4. Check
oil in tank 5. Jump out tt 6 check that all safety are closed 7 check
all valve are open 8 put air or water in furnace or boiler
Is the high limit control an operating control - ANSWER-No
Nozzles can be cleaned to remove any carbonization by using a
very fine wire brush - ANSWER-No
The tangential shots in an oil burner nozzle are to control the
volume of oil flow through the nozzle - ANSWER-No
,2|Page
After several seasons buried oil tanks are very subject to water
under the oil - ANSWER-Yes
Oil burner nozzles are designed and rated at 100 psig nozzle
pressure - ANSWER-Yes
If a parallel hydronic system is installed it may be necessary to
bleed air from each of the parallel circuits - ANSWER-Yes
A zero smoke and low C02 or high 02 reading at the flue pipe and
over the fire is an indication? - ANSWER-Too much air
When draft reading cannot be taken over the fire what range is
acceptable at the boiler outlet? - ANSWER--.04
What is a way to test ignition transformer working properly -
ANSWER-Set springs on secondary side of transformer 1/2 apart
and check if spark jumps gap when power is supplied to primary
side of transformer
,3|Page
A fan / limit switch is found on what type of heating system -
ANSWER-Hot air furnace
Oil burners starts but fire does not it maybe because of -
ANSWER-There is too much combustion air
Dust buildup on combustion air can blades would - ANSWER-
Decrease airflow
If an oil burner is not producing visible can it still produce carbon
dioxide - ANSWER-Yes
When installing oil fired hot water heater into a chimney with oil
fired hot air furnace where should flue for water heater go -
ANSWER-Above furnace flue pipe
Electrical short circuit means - ANSWER-Occurs whenever power
goes directly to nuetral or ground
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Is it recommended for booster fuel units to be used in combustion
with pressure regulating valve as protection when more than one
burner is used - ANSWER-Yes
Electrical closed circuit means - ANSWER-A complete or
operating circuit
Electrical open circuit means - ANSWER-A circuit that does not
allow flow of electricity to complete the circuit such as open switch
or wire disconnected
Calculate vacuum - ANSWER-1" of vacuum for each foot of lift, 1"
of vacuum for each 10'of horizontal run, 1/2" for filter
Increasing the fuel pump pressure will - ANSWER-Increase the
nozzle firing rate
The home for bacterial growth and sludge in the bottom of oil tank
is - ANSWER-water
OIL HEAT EXAM LATEST 2025 ACTUAL EXAM WITH COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS (100% VERIFIED
ANSWERS) |ALREADY GRADED A+| ||PROFESSOR VERIFIED||
||BRANDNEW!!!||
The valve used to prevent gravity circulation through the system
when the boiler maintains - ANSWER-Flow control valve
steps of the 8 steps of no heat call - ANSWER-1. Check for
voltage 2. Check for oil in fire box 3 reset primary control 4. Check
oil in tank 5. Jump out tt 6 check that all safety are closed 7 check
all valve are open 8 put air or water in furnace or boiler
Is the high limit control an operating control - ANSWER-No
Nozzles can be cleaned to remove any carbonization by using a
very fine wire brush - ANSWER-No
The tangential shots in an oil burner nozzle are to control the
volume of oil flow through the nozzle - ANSWER-No
,2|Page
After several seasons buried oil tanks are very subject to water
under the oil - ANSWER-Yes
Oil burner nozzles are designed and rated at 100 psig nozzle
pressure - ANSWER-Yes
If a parallel hydronic system is installed it may be necessary to
bleed air from each of the parallel circuits - ANSWER-Yes
A zero smoke and low C02 or high 02 reading at the flue pipe and
over the fire is an indication? - ANSWER-Too much air
When draft reading cannot be taken over the fire what range is
acceptable at the boiler outlet? - ANSWER--.04
What is a way to test ignition transformer working properly -
ANSWER-Set springs on secondary side of transformer 1/2 apart
and check if spark jumps gap when power is supplied to primary
side of transformer
,3|Page
A fan / limit switch is found on what type of heating system -
ANSWER-Hot air furnace
Oil burners starts but fire does not it maybe because of -
ANSWER-There is too much combustion air
Dust buildup on combustion air can blades would - ANSWER-
Decrease airflow
If an oil burner is not producing visible can it still produce carbon
dioxide - ANSWER-Yes
When installing oil fired hot water heater into a chimney with oil
fired hot air furnace where should flue for water heater go -
ANSWER-Above furnace flue pipe
Electrical short circuit means - ANSWER-Occurs whenever power
goes directly to nuetral or ground
, 4|Page
Is it recommended for booster fuel units to be used in combustion
with pressure regulating valve as protection when more than one
burner is used - ANSWER-Yes
Electrical closed circuit means - ANSWER-A complete or
operating circuit
Electrical open circuit means - ANSWER-A circuit that does not
allow flow of electricity to complete the circuit such as open switch
or wire disconnected
Calculate vacuum - ANSWER-1" of vacuum for each foot of lift, 1"
of vacuum for each 10'of horizontal run, 1/2" for filter
Increasing the fuel pump pressure will - ANSWER-Increase the
nozzle firing rate
The home for bacterial growth and sludge in the bottom of oil tank
is - ANSWER-water
