OIL BURNER LICENSE EXAM AND PRACTICE
EXAM NEWEST ACTUAL EXAM COMPLETE 250
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+
Oil lines that are buried in concrete should: - ANSWER Be sleeved in non-metallic pipe
We install oil safety valves and oil pressure reducing valves to: - ANSWER Reduce the
head pressure at the pump and prevent the tank from siphoning in the event of a
suction line leak
One advantage of a two stage fuel unit on a one pipe system application is: - ANSWER
There are no advantages
If the vacuum gauge reading is substantially above the calculated reading with the
burner running, the cause could be: - ANSWER Restriction in supply line
Pulsating oil pump pressure and a pulsating fire could be caused by: - ANSWER Air
leaks in the suction line
The flow rate stamped on the nozzle is based on what pressure? - ANSWER 100 PSI
Increasing the fuel pump pressure will: - ANSWER Increase the flow rate
One gallon of #2 oil contains approximately: - ANSWER 140,000 BTU's
Dirt or lint build-up in the bevel of the burner fan blades will: - ANSWER Reduce the
amount of combustion air
To change the air ratio for different firing rates with an adjustable head burner, you: -
ANSWER Adjust the position of the drawer assembly in the air tube
One advantage of high static pressure burners is: - ANSWER They enable boiler and
furnace manufacturers to design more efficient heat exchangers
The key final adjustment for most oil burners is: - ANSWER Combustion air
All petroleum products are chemical compounds of: - ANSWER Carbon and hydrogen
To ensure clean, uncontaminated fuel reaches the oil burner: - ANSWER - Install tanks
properly
- Regularly inspect them and fix minor defects before they lead to major problems
, - Install a quality oil filter
Water in oil tanks come from: - ANSWER - Condensation
- On outside tanks-broken tank gauges, loose or missing fill and vent caps
- Failing to drain water from a tank before installation
When installing a tank be sure: - ANSWER - The fill and vent lines are pitched
downwards towards the tank
- To install a vent alarm and a tank gauge
- To install an oil filter and a fusible valve where required
Oil lines buried in concrete should be: - ANSWER Sleeved in plastic or PVC pipe with
no fittings below the floor
The purpose of fuel units (oil pumps) is: - ANSWER - Lift oil from the tank to the burner
- Prevent contaminants that passed the external oil filter from clogging the nozzle
- Deliver oil at a constant and regulated pressure to the nozzle
True or False:
When replacing the nozzle to increase the spray pattern the electrodes must be
adjusted - ANSWER False
The fusible link melts at what temperature? - ANSWER 165
When checking for fuel line leaks: - ANSWER Vacuum check first
True or False:
When the thermostat calls for heat, the burner and blower start at the same time? -
ANSWER False
Boiler water limit control indicates? - ANSWER Pressure and Temperature
A siphon is used to prevent _________ from entering the control? - ANSWER Steam
The flow of natural chimney draft is caused by? - ANSWER Negative pressure
True or False:
Power venters should be installed closest to the exterior wall? - ANSWER True
Unconfined space - ANSWER Total BTU's Div 1000 x 50
All fill and vent piping shall be made of: - ANSWER - Steel
- Brass
- Pipe-malleable
Piping used in the installation of oil burners? - ANSWER 3/8 (1/2 O.D.)
EXAM NEWEST ACTUAL EXAM COMPLETE 250
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+
Oil lines that are buried in concrete should: - ANSWER Be sleeved in non-metallic pipe
We install oil safety valves and oil pressure reducing valves to: - ANSWER Reduce the
head pressure at the pump and prevent the tank from siphoning in the event of a
suction line leak
One advantage of a two stage fuel unit on a one pipe system application is: - ANSWER
There are no advantages
If the vacuum gauge reading is substantially above the calculated reading with the
burner running, the cause could be: - ANSWER Restriction in supply line
Pulsating oil pump pressure and a pulsating fire could be caused by: - ANSWER Air
leaks in the suction line
The flow rate stamped on the nozzle is based on what pressure? - ANSWER 100 PSI
Increasing the fuel pump pressure will: - ANSWER Increase the flow rate
One gallon of #2 oil contains approximately: - ANSWER 140,000 BTU's
Dirt or lint build-up in the bevel of the burner fan blades will: - ANSWER Reduce the
amount of combustion air
To change the air ratio for different firing rates with an adjustable head burner, you: -
ANSWER Adjust the position of the drawer assembly in the air tube
One advantage of high static pressure burners is: - ANSWER They enable boiler and
furnace manufacturers to design more efficient heat exchangers
The key final adjustment for most oil burners is: - ANSWER Combustion air
All petroleum products are chemical compounds of: - ANSWER Carbon and hydrogen
To ensure clean, uncontaminated fuel reaches the oil burner: - ANSWER - Install tanks
properly
- Regularly inspect them and fix minor defects before they lead to major problems
, - Install a quality oil filter
Water in oil tanks come from: - ANSWER - Condensation
- On outside tanks-broken tank gauges, loose or missing fill and vent caps
- Failing to drain water from a tank before installation
When installing a tank be sure: - ANSWER - The fill and vent lines are pitched
downwards towards the tank
- To install a vent alarm and a tank gauge
- To install an oil filter and a fusible valve where required
Oil lines buried in concrete should be: - ANSWER Sleeved in plastic or PVC pipe with
no fittings below the floor
The purpose of fuel units (oil pumps) is: - ANSWER - Lift oil from the tank to the burner
- Prevent contaminants that passed the external oil filter from clogging the nozzle
- Deliver oil at a constant and regulated pressure to the nozzle
True or False:
When replacing the nozzle to increase the spray pattern the electrodes must be
adjusted - ANSWER False
The fusible link melts at what temperature? - ANSWER 165
When checking for fuel line leaks: - ANSWER Vacuum check first
True or False:
When the thermostat calls for heat, the burner and blower start at the same time? -
ANSWER False
Boiler water limit control indicates? - ANSWER Pressure and Temperature
A siphon is used to prevent _________ from entering the control? - ANSWER Steam
The flow of natural chimney draft is caused by? - ANSWER Negative pressure
True or False:
Power venters should be installed closest to the exterior wall? - ANSWER True
Unconfined space - ANSWER Total BTU's Div 1000 x 50
All fill and vent piping shall be made of: - ANSWER - Steel
- Brass
- Pipe-malleable
Piping used in the installation of oil burners? - ANSWER 3/8 (1/2 O.D.)
