Heating practice questions

Question 1 of 10

Which method of heat transfer moves heat through solid matter?

• AConvection
• BRadiation
• CConduction
• DInfiltration

Question 2 of 10

About how much of a draft hood furnace heat exchanger can a home inspector see?

• AAbout 20 percent of it
• BAbout 40 percent of it
• CAbout 60 percent of it
• DAbout 80 percent of it

Question 3 of 10

Which component does a vented decorative fireplace not have?

• AA cabinet
• BA burner and controls
• CA heat exchanger
• DA vent

Question 4 of 10

A home inspector finds a vent system rising 3 feet above the flue collar of a gas water heater. How should this be reported?

• AAs acceptable, because the 5 foot figure covers wall furnaces
• BAs acceptable, because no minimum height applies to this
• CAs a defect, because 12 feet or more is expected here
• DAs a defect, because 5 feet or more is expected here

Question 5 of 10

A vent connector is loose where it enters a chimney. What two things could follow?

• AThe flue could block, or the appliance could shut down
• BThe chimney could cool, or condensate could form in the flue
• CThe draft could reverse, or the connector could rust through
• DThe connector could work loose, or gasses could enter the house

Question 6 of 10

What does the spinning disk inside an oil burner's blast tube do?

• AIt meters the quantity of oil reaching the nozzle each cycle
• BIt carries the ignition arc to the electrodes
• CIt senses the presence of the flame
• DIt puts controlled turbulence into the air moving down the blast tube

Question 7 of 10

A home inspector finds an oil appliance venting into a masonry chimney with no cap of any kind at the top. What does the manual recommend for that chimney?

• AA listed vent cap, which is required on every vent
• BA rain cap, which is recommended on every chimney
• CA storm collar, which is recommended on every chimney
• DA listed roof assembly, which is required on every vent

Question 8 of 10

A home inspector finds a portable heater standing in the only bedroom of a house. What may that indicate?

• AThat the heating system has been shut down for the season
• BThat a permanently connected heater has been removed
• CThat the required heat source for the room is inadequate
• DThat the circuit serving the room is already overloaded

Question 9 of 10

What should water pass through on its way into a hot water boiler?

• AAn air scoop and a bladder type expansion tank
• BA monoflow tee and a zone valve
• CA pressure relief valve and an extension pipe
• DA backflow prevention device and a shut off valve

Question 10 of 10

A home inspector finds a wet return with no equalizer pipe and no Hartford Loop anywhere at the boiler. Which statement about these two devices is correct?

• ABoth should be present on any system with a wet return
• BNeither is required below 2 psig of operating pressure
• COne or the other should be present, and not both
• DBoth are optional where the wet return is short