1|Page
Oil Heat Exam|| QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||NEWEST EXAM!!
Combustion air obtained by means of ducts to outdoors
horizontally from two permanent openings one near top of
space one near bottom of space each opening total free
area of not less than - ANSWER-1 square inch per 2000
BTU's per hour
How to test OSV - ANSWER-Perform a vacuum test on oil
line and pump from just after OVS
What height does a power venter need to be over public
way - ANSWER-7ft
Combustion air obtained from freely communicating with
outdoor permanent openings total free area of not less
than - ANSWER-1 square inch per 5,000 btus per hour
Combustion air obtained from two permanent openings
one near top of space and one near bottom of space each
opening total free area of not less than - ANSWER-1
square inch per 1,000 BTU's per hour
,2|Page
Combustion air obtained by means of ducts to outdoors
vertically from two permanent openings one near top of
space one near bottom of space each opening total free
area of not less than - ANSWER-1 square inch per 4,000
BTU's per hour
The main source of air into a hydronic system is the -
ANSWER-Supply water
An automatic air bleed valve controls the airflow out of the
system by means of a - ANSWER-Float
Voltage of oil burner safely control circuit shall not exceed
- ANSWER-150 volts
What is the minimum thickness for a steel flue pipe up to 9
inch round - ANSWER-26 gauge
Can a manually operated draft damper be used in the
chimney connector - ANSWER-No
Can a chimney connector pass through or be hidden
behind a wall to connect to a chimney - ANSWER-No
,3|Page
what would cause pulsating oil pressure and fire -
ANSWER-defective fuel pump, defective burner motor,
defective burner coupling, air leaks in oil line, partially
clogged strainer or filter
what is the final product of burning hydrogen - ANSWER-
water vapor +nitrogen +heat
what is the final product of burning carbon - ANSWER-
carbon dioxide +nitrogen +heat
how do you test stack mounted primary control safety
timing - ANSWER-take heat sensing element out of flue
pipe, take #3 wire off stack switch, and shut oil off to
burner
a zero smoke and low co2 or higher 02 reading at the flue
pipe and over the fire is an indication - ANSWER-too much
air
expansion tanks must always be bled from the top of until
all of the hot air is removed from it - ANSWER-No
, 4|Page
it is possible for hydronic system with many zones to
operate with one circulating pump - ANSWER-yes
Hydronic heat circulators are centrifugal pumps. -
ANSWER-yes
in series loop the water going through the last terminal unit
will be the same temperature as the water through the first
unit - ANSWER-no
the only place a bleed valve is needed is on the top of the
boiler - ANSWER-no
a tank less domestic water system provides hot water from
a coil in the boiler - ANSWER-yes
FF on burner primary control is wired to - ANSWER-cad
cell
TT on the burner primary control is wired to - ANSWER-
thermostat
what is the amount of BTU'S in 1 gallon of No2 heating oil
- ANSWER-140,000 BTU'S
Oil Heat Exam|| QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||NEWEST EXAM!!
Combustion air obtained by means of ducts to outdoors
horizontally from two permanent openings one near top of
space one near bottom of space each opening total free
area of not less than - ANSWER-1 square inch per 2000
BTU's per hour
How to test OSV - ANSWER-Perform a vacuum test on oil
line and pump from just after OVS
What height does a power venter need to be over public
way - ANSWER-7ft
Combustion air obtained from freely communicating with
outdoor permanent openings total free area of not less
than - ANSWER-1 square inch per 5,000 btus per hour
Combustion air obtained from two permanent openings
one near top of space and one near bottom of space each
opening total free area of not less than - ANSWER-1
square inch per 1,000 BTU's per hour
,2|Page
Combustion air obtained by means of ducts to outdoors
vertically from two permanent openings one near top of
space one near bottom of space each opening total free
area of not less than - ANSWER-1 square inch per 4,000
BTU's per hour
The main source of air into a hydronic system is the -
ANSWER-Supply water
An automatic air bleed valve controls the airflow out of the
system by means of a - ANSWER-Float
Voltage of oil burner safely control circuit shall not exceed
- ANSWER-150 volts
What is the minimum thickness for a steel flue pipe up to 9
inch round - ANSWER-26 gauge
Can a manually operated draft damper be used in the
chimney connector - ANSWER-No
Can a chimney connector pass through or be hidden
behind a wall to connect to a chimney - ANSWER-No
,3|Page
what would cause pulsating oil pressure and fire -
ANSWER-defective fuel pump, defective burner motor,
defective burner coupling, air leaks in oil line, partially
clogged strainer or filter
what is the final product of burning hydrogen - ANSWER-
water vapor +nitrogen +heat
what is the final product of burning carbon - ANSWER-
carbon dioxide +nitrogen +heat
how do you test stack mounted primary control safety
timing - ANSWER-take heat sensing element out of flue
pipe, take #3 wire off stack switch, and shut oil off to
burner
a zero smoke and low co2 or higher 02 reading at the flue
pipe and over the fire is an indication - ANSWER-too much
air
expansion tanks must always be bled from the top of until
all of the hot air is removed from it - ANSWER-No
, 4|Page
it is possible for hydronic system with many zones to
operate with one circulating pump - ANSWER-yes
Hydronic heat circulators are centrifugal pumps. -
ANSWER-yes
in series loop the water going through the last terminal unit
will be the same temperature as the water through the first
unit - ANSWER-no
the only place a bleed valve is needed is on the top of the
boiler - ANSWER-no
a tank less domestic water system provides hot water from
a coil in the boiler - ANSWER-yes
FF on burner primary control is wired to - ANSWER-cad
cell
TT on the burner primary control is wired to - ANSWER-
thermostat
what is the amount of BTU'S in 1 gallon of No2 heating oil
- ANSWER-140,000 BTU'S
