OIL HEAT
Study online at https://quizlet.com/_23lfit
1. The oil-fired, forced-warm-air Heat-producing system and heat-distributing system
furnace has two main systems:
Which are...
2. What is the heat-producing sys- consists of the oil burner, fuel supply components, combus-
tem? tion chamber, and heat exchanger.
3. What is the heat-distribution composed of the blower, which moves the air through the
system? ductwork, and other related components
4. After the thermostat calls for The ignition system is powered and the oil burner motor
heat, what happens? starts, which turns the fuel pump and combustion air blower
wheel.
5. What is sprayed into the com- an oil-air mixture
bustion area and ignited?
6. Why is diesel fuel dyed? Taxes are higher if diesel fuel is used for transportation, so
dying it helps identify fuel used for residential/commercial
purposes.
7. Where is fuel oil derived from? crude oil by a process of distillation called cracking.
8. How many grades of fuel oil are 6
there?
9. What is a flash point? 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.
10. What is the minimum flash point 100F
for No. 2 oil?
11. What is an ignition point? few degrees higher than the flash point.
1/7
, OIL HEAT
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12. Why does the vapor continue to The vapors will continue to rise from the liquid.
burn after ignition point?
13. What is viscosity? the thickness of the oil under normal temperatures.
14. How is viscosity expressed? Saybolt Seconds Universal (SSU)
15. How does SSU determine oil vis- how much oil will drip through a calibrated hole at a certain
cosity? temperature.
16. What is carbon residue? 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.
17. What residue will there be if oil None
burned properly?
18. How much water/sediment Lowest amount possible.
should be left in oil after refin-
ing?
19. How does sediment form? result of rust forming on the internal pipe and tank surfaces,
which may be be made of iron or steel.
20. What is pour point? the lowest temperature at which the fuel can be stored and
handled.
21. What is one of the lowest pour No.2
point oils?
22. What is ash content? indicates the amount of noncombustible materials con-
tained in the fuel oil.
23. What is distillation quality? describes the ability of the oil to become vaporized
2/7
Study online at https://quizlet.com/_23lfit
1. The oil-fired, forced-warm-air Heat-producing system and heat-distributing system
furnace has two main systems:
Which are...
2. What is the heat-producing sys- consists of the oil burner, fuel supply components, combus-
tem? tion chamber, and heat exchanger.
3. What is the heat-distribution composed of the blower, which moves the air through the
system? ductwork, and other related components
4. After the thermostat calls for The ignition system is powered and the oil burner motor
heat, what happens? starts, which turns the fuel pump and combustion air blower
wheel.
5. What is sprayed into the com- an oil-air mixture
bustion area and ignited?
6. Why is diesel fuel dyed? Taxes are higher if diesel fuel is used for transportation, so
dying it helps identify fuel used for residential/commercial
purposes.
7. Where is fuel oil derived from? crude oil by a process of distillation called cracking.
8. How many grades of fuel oil are 6
there?
9. What is a flash point? 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.
10. What is the minimum flash point 100F
for No. 2 oil?
11. What is an ignition point? few degrees higher than the flash point.
1/7
, OIL HEAT
Study online at https://quizlet.com/_23lfit
12. Why does the vapor continue to The vapors will continue to rise from the liquid.
burn after ignition point?
13. What is viscosity? the thickness of the oil under normal temperatures.
14. How is viscosity expressed? Saybolt Seconds Universal (SSU)
15. How does SSU determine oil vis- how much oil will drip through a calibrated hole at a certain
cosity? temperature.
16. What is carbon residue? 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.
17. What residue will there be if oil None
burned properly?
18. How much water/sediment Lowest amount possible.
should be left in oil after refin-
ing?
19. How does sediment form? result of rust forming on the internal pipe and tank surfaces,
which may be be made of iron or steel.
20. What is pour point? the lowest temperature at which the fuel can be stored and
handled.
21. What is one of the lowest pour No.2
point oils?
22. What is ash content? indicates the amount of noncombustible materials con-
tained in the fuel oil.
23. What is distillation quality? describes the ability of the oil to become vaporized
2/7
