Question 1

Name the six parts of an oil burner nozzle.

Accepted Answer

orifice, swirl chamber, distributor, retainer, filter, orifice disc

Question 2

To make combustion efficiency tests, a hole must be made ____.

Accepted Answer

The hole should be made in the flue pipe before the draft control. This allows for accurate measurement of the gases being produced by the combustion process before they are influenced by the draft control.

Question 3

What would happen if the narrow spray angle nozzle were used in a round combustion chamber?

Accepted Answer

The spray would hit the rear of the combustion chamber and cause carbon buildup.

Question 4

How can a technician tell the difference between an upflow furnace and a downflow furnace?

Accepted Answer

The answer of How can a technician tell the difference...

Question 5

The heat content of one gallon of No. 2 fuel oil is _________________________.

Accepted Answer

The answer of The heat content of one gallon of...

Question 6

A condensing oil furnace operates at a higher efficiency because part of the heat output is ____.

Accepted Answer

A condensing oil furnace operates at a higher efficiency because it is able to capture and utilize the latent heat that is normally lost in a non-condensing furnace. This is accomplished through the use of a secondary heat exchanger that allows the furnace to extract heat from the exhaust gases, which causes them to cool and condense. This process releases the latent heat that is trapped in the water vapor and results in higher efficiency.

Question 7

Define atomization.

Accepted Answer

The answer of Define atomization....

Question 8

What tests can a technician perform on an oil furnace that will check the combustion efficiency?

Accepted Answer

The answer of What tests can a technician perform on...

Quiz 14: Burning Oil As Fuel