OIL BURNER LICENCE EXAM WITH REAL QUESTIONS AND VERIFIED ANSWERS || ALREADY GRADED A+ | GUARANTEED PASS | LATEST VERSION 2024
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OIL BURNER LICENCE
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OIL BURNER LICENCE
OIL BURNER LICENCE EXAM WITH REAL
QUESTIONS AND VERIFIED ANSWERS ||
ALREADY GRADED A+ | GUARANTEED PASS |
LATEST VERSION 2024
When a thermostat appears to be out of calibration, before recalibration it is
important to first: - ANSWER- -Be sure the thermostat is level
-Check to see that the...
OIL BURNER LICENCE EXAM WITH REAL
QUESTIONS AND VERIFIED ANSWERS ||
ALREADY GRADED A+ | GUARANTEED PASS |
LATEST VERSION 2024
When a thermostat appears to be out of calibration, before recalibration it is
important to first: - ANSWER- -Be sure the thermostat is level
-Check to see that the hole behind the thermostat is sealed off properly
-Be sure that the thermostat is acclimated to the room temperature
The primary control must be capable of: - ANSWER- -Reacting to the absence of
flame
-Controlling the ignition and motor
-Locking out on safety in the event of flame failure
When an interrupted ignition stack mounted primary is energized call - ANSWER-
The motor and ignition relays pull in together
When using a remote-mounted heat sensing primary control, the flame detector is
often referred to as: - ANSWER- Pyro stat
Because of the cad cell eye's limited sensing range, it can only be used effectively
to: - ANSWER- Monitor an oil flame
,It has been established that _________ of steam is sufficient to operate any
residential one-pipe steam system. - ANSWER- 2 psi
When installing a replacement steam boiler, it is important to: - ANSWER- Follow
the manufacturer piping instruction
In the early 1900's the ________ was invented to prevent water from leaving the
steam boiler should a return line spring a leak. - ANSWER- Hartford Loop
One of the reasons a radiator on a two-pipe system fails to heat may be: -
ANSWER- A faulty thermostat trap
A steam pigtail should always be installed between the pressuretrol and the boiler
to: - ANSWER- Place a water seal between the boiler and the pressuretrol
In a one-pipe system, the minimum distance between the water level and the
bottom of the lowest steam carrying pipe is: - ANSWER- 28 inches
To prevent scalding temperatures at the domestic water fixtures when using a
tankless coil, it is important to install a: - ANSWER- Tempering valve
A typical residential zone valve for a hot water heating system normally operates
on: - ANSWER- 24 volts
In most residential hot water heating systems, the design temperature difference
between the supply and return water is: - ANSWER- 20° F
To properly size a zone circulator, you must know the following: - ANSWER- The
gpm and feet of head of the piping
, The _____ is used to prevent gravity circulation through the system when the
boiler maintains temperature. - ANSWER- Flow control valve
Tribulations in the tubes of a fire tube boiler: - ANSWER- Increase efficiency
In a forced warm air system, the return air duct size should never be less than
______ of the supply air duct size. - ANSWER- 80 percent
What type of motor is used on a residential high-pressure oil burner? - ANSWER-
-Permanent split capacitor
-Split phase
If a home has an oil-fired system with an inside oil storage tank, what is added as a
safety feature to protect against liquid fuel fires? - ANSWER- An automatic fuse-
type globe valve
When a CAD cell is located in the light, its resistance is: - ANSWER- Below 1600
ohms of resistance
When A CAD cell is located in the dark, its resistance is: - ANSWER- Above
100,000 ohms of resistance
What two flame detection devices are used in oil fired primary controls? -
ANSWER- Bimetal and cadmium sulfide
Which component is used to control primary air in a high-pressure gun burner? -
ANSWER- An adjustable air damper
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