OIL HEAT Questions and All Correct
Answers.
The oil-fired, forced-warm-air furnace has two main systems: Which are... - Answer Heat-
producing system and heat-distributing system
What is the heat-producing system? - Answer consists of the oil burner, fuel supply
components, combustion chamber, and heat exchanger.
What is the heat-distribution system? - Answer composed of the blower, which moves the air
through the ductwork, and other related components
After the thermostat calls for heat, what happens? - Answer The ignition system is powered
and the oil burner motor starts, which turns the fuel pump and combustion air blower wheel.
What is sprayed into the combustion area and ignited? - Answer an oil-air mixture
Why is diesel fuel dyed? - Answer Taxes are higher if diesel fuel is used for transportation, so
dying it helps identify fuel used for residential/commercial purposes.
Where is fuel oil derived from? - Answer crude oil by a process of distillation called cracking.
How many grades of fuel oil are there? - Answer 6
What is a flash point? - Answer Has to do with the maximum safe storage and handling
temperature at which vapors above the liquid fuel oil ignite for a short period of time when
exposed to a flame.
What is the minimum flash point for No. 2 oil? - Answer 100F
What is an ignition point? - Answer few degrees higher than the flash point.
Why does the vapor continue to burn after ignition point? - Answer The vapors will continue
to rise from the liquid.
What is viscosity? - Answer the thickness of the oil under normal temperatures.
, How is viscosity expressed? - Answer Saybolt Seconds Universal (SSU)
How does SSU determine oil viscosity? - Answer how much oil will drip through a calibrated
hole at a certain temperature.
What is carbon residue? - Answer the amount of of carbon left in a sample of oil after it is
changed from a liquid to a vapor by being boiled in an oxygen-free atmosphere.
What residue will there be if oil burned properly? - Answer None
How much water/sediment should be left in oil after refining? - Answer Lowest amount
possible.
How does sediment form? - Answer result of rust forming on the internal pipe and tank
surfaces, which may be be made of iron or steel.
What is pour point? - Answer the lowest temperature at which the fuel can be stored and
handled.
What is one of the lowest pour point oils? - Answer No.2
What is ash content? - Answer indicates the amount of noncombustible materials contained
in the fuel oil.
What is distillation quality? - Answer describes the ability of the oil to become vaporized
Where can oil tanks be placed? - Answer Above or below ground and indoor.
What is an oil deaerator? - Answer an oil piping component that allows a one-pipe system to
function as a two-pipe system. This is accomplished by connecting two pipes between the
deaerator and the fuel pump on the oil burner, but only one pipe between the dearator and the
oil storage tank. This eliminates the are problems that are typically found in one-pipe oil supply
systems.
How does fuel get to the oil deaerator? - Answer fuel travels from the oil tank, through the
oil filter, and into the deaerator.
What happens in the oil deaerator? - Answer any air that is mixed with the oil is separated
from the fuel, allowing fuel to then pass on to the fuel pump.
Answers.
The oil-fired, forced-warm-air furnace has two main systems: Which are... - Answer Heat-
producing system and heat-distributing system
What is the heat-producing system? - Answer consists of the oil burner, fuel supply
components, combustion chamber, and heat exchanger.
What is the heat-distribution system? - Answer composed of the blower, which moves the air
through the ductwork, and other related components
After the thermostat calls for heat, what happens? - Answer The ignition system is powered
and the oil burner motor starts, which turns the fuel pump and combustion air blower wheel.
What is sprayed into the combustion area and ignited? - Answer an oil-air mixture
Why is diesel fuel dyed? - Answer Taxes are higher if diesel fuel is used for transportation, so
dying it helps identify fuel used for residential/commercial purposes.
Where is fuel oil derived from? - Answer crude oil by a process of distillation called cracking.
How many grades of fuel oil are there? - Answer 6
What is a flash point? - Answer Has to do with the maximum safe storage and handling
temperature at which vapors above the liquid fuel oil ignite for a short period of time when
exposed to a flame.
What is the minimum flash point for No. 2 oil? - Answer 100F
What is an ignition point? - Answer few degrees higher than the flash point.
Why does the vapor continue to burn after ignition point? - Answer The vapors will continue
to rise from the liquid.
What is viscosity? - Answer the thickness of the oil under normal temperatures.
, How is viscosity expressed? - Answer Saybolt Seconds Universal (SSU)
How does SSU determine oil viscosity? - Answer how much oil will drip through a calibrated
hole at a certain temperature.
What is carbon residue? - Answer the amount of of carbon left in a sample of oil after it is
changed from a liquid to a vapor by being boiled in an oxygen-free atmosphere.
What residue will there be if oil burned properly? - Answer None
How much water/sediment should be left in oil after refining? - Answer Lowest amount
possible.
How does sediment form? - Answer result of rust forming on the internal pipe and tank
surfaces, which may be be made of iron or steel.
What is pour point? - Answer the lowest temperature at which the fuel can be stored and
handled.
What is one of the lowest pour point oils? - Answer No.2
What is ash content? - Answer indicates the amount of noncombustible materials contained
in the fuel oil.
What is distillation quality? - Answer describes the ability of the oil to become vaporized
Where can oil tanks be placed? - Answer Above or below ground and indoor.
What is an oil deaerator? - Answer an oil piping component that allows a one-pipe system to
function as a two-pipe system. This is accomplished by connecting two pipes between the
deaerator and the fuel pump on the oil burner, but only one pipe between the dearator and the
oil storage tank. This eliminates the are problems that are typically found in one-pipe oil supply
systems.
How does fuel get to the oil deaerator? - Answer fuel travels from the oil tank, through the
oil filter, and into the deaerator.
What happens in the oil deaerator? - Answer any air that is mixed with the oil is separated
from the fuel, allowing fuel to then pass on to the fuel pump.
