1|Page
Ontario Oil Burner Technician 2 (OBT2) Certification
Exam ACTUAL VERIFIED EXAM COMPLETE
QUESTIONS AND CORRECT ANSWERS LATEST
UPDATE THIS YEAR.pdf||NEWEST EXAM!!!
T/F? A single wall vent connector with a vent temperature
not exceeding 750 °F must be at least three [3] inches
away from combustible materials. - Answer-False
An oil venting system shall terminate from a building
mechanical air inlet, or operable window or door by no
less than _____________________________ feet. -
Answer-6ft
T/F? An unlined masonry chimney, correctly sized and in
good condition, may accommodate a new oil-fired
appliance. - Answer-False
The essential elements of a building are the - Answer-
building envelope, occupants, mechanical systems and
external environment
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Building skin is required to - Answer-protect the underlying
materials
T/F? If the heat loss of a building is 50 000 Btu/h, the
furnace to be selected should have an input of 50 000
Btu/h or more. - Answer-False
The best way to remove dust from a building is to -
Answer-filter the air or exhaust it mechanically
T/F? The most effective way to reduce heat loss is to seal
air leaks around the windows using a caulking gun. -
Answer-True
T/F? The purpose of a heating appliance is to heat the
occupants in a building. - Answer-False
Negative pressure in a building can be caused by a[n] -
Answer-lack of makeup or combustion air
T/F? Evaporation increases the rate of heat transfer. -
Answer-True
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T/F? Occupants will experience higher heat losses as a
result of greater air movement. e.g. from fan blowing air -
Answer-True
T/F? Occupants will experience lower heat losses as a
result of higher humidity levels in a heated building. -
Answer-True
The best location to install a forced air furnace is
______________________________________________
____________________. - Answer-near an outside wall in
a central location in an unfinished basement under the
kitchen
T/F? Make-up air does not replace air being exhausted [or
lost] by a building. - Answer-False
If one of your customer's fuel-oil bills increased greatly this
winter, the cause may be that
______________________________. - Answer-the
system needs an annual maintenance, there's a leaking
storage tank or significant renovations / changes in
building structure
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The recommended domestic hot water temperature setting
for most residential-type water heaters, unless otherwise
stated by provincial building codes, is _____________ °F.
- Answer-130°F
About _____________ cubic feet of air is required to
ensure complete combustion of one [1] gallon of #2 fuel
oil. - Answer-2000
T/F? Air supply openings that communicate with the
outdoors of a building must be located not less than twelve
[12] inches above the outside grade level. - Answer-True
An oil-fired boiler with an input of 0.75 USGPH that is
vented into a clay lined masonry chimney 20 feet high
must maintain a minimum base temperature of
____________ °F. - Answer-320°F
A furnace rated at 0.75 USGPH is connected to a twenty
[20] foot high clay tiled lined masonry chimney. The
thermal resistance is R2. Using the B139 code book vent
tables, determine an acceptable vent diameter range. -
Answer-4 to 5 Inches
Ontario Oil Burner Technician 2 (OBT2) Certification
Exam ACTUAL VERIFIED EXAM COMPLETE
QUESTIONS AND CORRECT ANSWERS LATEST
UPDATE THIS YEAR.pdf||NEWEST EXAM!!!
T/F? A single wall vent connector with a vent temperature
not exceeding 750 °F must be at least three [3] inches
away from combustible materials. - Answer-False
An oil venting system shall terminate from a building
mechanical air inlet, or operable window or door by no
less than _____________________________ feet. -
Answer-6ft
T/F? An unlined masonry chimney, correctly sized and in
good condition, may accommodate a new oil-fired
appliance. - Answer-False
The essential elements of a building are the - Answer-
building envelope, occupants, mechanical systems and
external environment
,2|Page
Building skin is required to - Answer-protect the underlying
materials
T/F? If the heat loss of a building is 50 000 Btu/h, the
furnace to be selected should have an input of 50 000
Btu/h or more. - Answer-False
The best way to remove dust from a building is to -
Answer-filter the air or exhaust it mechanically
T/F? The most effective way to reduce heat loss is to seal
air leaks around the windows using a caulking gun. -
Answer-True
T/F? The purpose of a heating appliance is to heat the
occupants in a building. - Answer-False
Negative pressure in a building can be caused by a[n] -
Answer-lack of makeup or combustion air
T/F? Evaporation increases the rate of heat transfer. -
Answer-True
,3|Page
T/F? Occupants will experience higher heat losses as a
result of greater air movement. e.g. from fan blowing air -
Answer-True
T/F? Occupants will experience lower heat losses as a
result of higher humidity levels in a heated building. -
Answer-True
The best location to install a forced air furnace is
______________________________________________
____________________. - Answer-near an outside wall in
a central location in an unfinished basement under the
kitchen
T/F? Make-up air does not replace air being exhausted [or
lost] by a building. - Answer-False
If one of your customer's fuel-oil bills increased greatly this
winter, the cause may be that
______________________________. - Answer-the
system needs an annual maintenance, there's a leaking
storage tank or significant renovations / changes in
building structure
, 4|Page
The recommended domestic hot water temperature setting
for most residential-type water heaters, unless otherwise
stated by provincial building codes, is _____________ °F.
- Answer-130°F
About _____________ cubic feet of air is required to
ensure complete combustion of one [1] gallon of #2 fuel
oil. - Answer-2000
T/F? Air supply openings that communicate with the
outdoors of a building must be located not less than twelve
[12] inches above the outside grade level. - Answer-True
An oil-fired boiler with an input of 0.75 USGPH that is
vented into a clay lined masonry chimney 20 feet high
must maintain a minimum base temperature of
____________ °F. - Answer-320°F
A furnace rated at 0.75 USGPH is connected to a twenty
[20] foot high clay tiled lined masonry chimney. The
thermal resistance is R2. Using the B139 code book vent
tables, determine an acceptable vent diameter range. -
Answer-4 to 5 Inches
