JJ Hand Cooling Flashcards
If a system designed for use with natural gas is supplied with propane gas
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The gas regulator and valve must be replaced
The flame will be too low unless a larger orifice is installed
No changes are needed for the equipment to function properly
The flame will be too high unless a smaller orifice is installed
supplied备有…的
orifice孔,穴,腔
The flame will be too high unless a smaller orifice is installed
Which of the problems listed below could occur发生 if gas fired equipment has incorrect venting or not enough combustion燃烧 air:
Untempered air from outside will flow into the house
Tripping绊倒 of a circuit breaker
Gas leak
Carbon monoxide一氧化碳 buildup
Carbon monoxide buildup
A device that automatically closes the gas valve if the pilot light goes out is called:
Thermocouple
Drip leg
Globe valve
Temperature pressure relief valve
Thermocouple
The house you are inspecting currently has a gas fired furnace or boiler. Each of the following clues may indicate表明 that the house also has an abandoned被遗弃的 buried fuel oil storage tank except
The brick chimney servicing\ the furnace or boiler has deteriorated变质的 mortar joints
Your knowledge that the neighborhood had or still has some houses served by oil heat
Small diameter copper tubes emerging from the inside of the foundation wall or the floor near the furnace or boiler
An approximately大约 1 ¼ inch diameter vent pipe outside coming from underground up against反对 the foundation
Small diameter copper tubes emerging from the inside of the foundation wall or the floor near the furnace or boiler
An inspector notes that the heat pump is not functioning and that the condensate pan under the air handler is full of water. Why might these two things be related?
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The full condensate pan tripped绊倒 a condensate overflow switch. The unit turned off in order to ensure确保 that condensate did not spill溢出
The full condensate pan indicates that the air handler fan is not functioning as it should
The full condensate pan indicates that there is a leak in the heat exchanger, which as depressurized减压 the unit, causing it to turn off
The full condensate pan means that combustion燃烧 byproducts condensed 浓缩and are flowing back into the house via the flue. This tripped the flue gas spill switch, turning the unit off
The full condensate pan tripped绊倒 a condensate overflow switch. The unit turned off in order to ensure确保 that condensate did not spill溢出
The 3 main controls on a furnace are:
The thermostat, the primary control, and the photocell.
The thermostat, the limit control, and the fan control.
The thermostat, the gas valve, and the thermocouple.
The thermostat, the limit control, and the pump control
The thermostat, the limit control, and the fan control.
Which action is required during the Heating Inspection according to the S.O.P.?
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- Required to observe the interior of flues and fireplace insert flue connections
- Required to operate automatic safety controls
- Required to inspect the uniformity or adequacy of the heat supply to rooms
- Required to inspect the heat distribution分布 system
Required to inspect the heat distribution分布 system
A large rectangular duct protruding from the heating system is called a _________.
- Plenum
- Register
- Loop
- Perimeter
Plenum
What color should flames be in a properly operating oil burner?
- Any color as long as they have sooty or smoky edges
- White or red
- Bright orange or yellowish white
- Blue
Bright orange or yellowish white
Air is the heat-conveying medium for Hydronic Heating Systems.
- True
- False
False
Which of the following need not be observed in the heating system inspection?
Underground oil storage tanks
Ventilation in a furnace room
An abnormal amount of soot in and around the furnace
Gas burners inside the heat exchanger
Underground oil storage tanks
If the ducts of the HVAC System run through unconditioned spaces in the house, such as a crawlspace or an attic, then the ductwork should be _______.
Metal
Dampered
Shortened
Insulated
Insulated
In a forced air furnace, the burners are used to generate heat in the
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Flue
Plenums
Draft diverter
Heat exchanger
Heat exchanger
Where is the reset button on an oil furnace?
Adjacent to the inspector
Below the filter
Next to the fuel pump
On the primary control attached to the burner
On the primary control attached to the burner
The heat source for an Air-to-Air Heat Pump is:
Outside Air
Thermal Panels
Electric Resistors
The Ground Temperature
Outside Air
You see during your inspection that the air conditioning system has supply registers in each bedroom, but only one large return register is located in the center hallway. Your first course of action would be:
Report that the life of the A/C equipment will be reduced
Recommend to your client that return ducts be installed in each bedroom
Check to see if the bedroom doors are undercut at the bottom
Report that the A/C system will not work well
Check to see if the bedroom doors are undercut at the bottom
If part of the air-conditioning unit is in the attic and there is moisture on the ceiling below, what air-conditioner component might be causing the moisture?
Fan
Evaporator Coil Pan
Condenser
Compressor
Evaporator Coil Pan
An AC unit has a 3 ton capacity. What is the BTU ?
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36,000
24,000
48,000
12,000
36,000
What is a “Cross Connection” as it relates to Plumbing?
When wastewater can be siphoned into the water supply system
When dissimilar metals are used in a single plumbing run
Low water pressure in the supply system
A dielectric connector
When wastewater can be siphoned into the water supply system
What is the overall purpose of the Heating Inspection?
To identify the brand name of the heating unit
To identify major deficiencies in the heating system
To open all access panels on equipment
To verify a heat source in each room
To identify major deficiencies in the heating system
When a lit match is held at the barometric damper and leans inward toward the smoke pipe, this indicates what?
- A downdraft is occurring.下沉气流正在发生。
- Exhaust is moving up the chimney as it should be
- The damper is broken.
- Carbon monoxide is escaping into the home.
Exhaust is moving up the chimney as it should be
When evaluating the operation of an AC system during the summer months, the temperature differential between the supply and renew air should typically be?
15-20° F
10-15° F
15-30° F
20-25° F
15-20° F
Which of the following need NOT be observed as part of the Heating System Inspection?
- Ventilation in a furnace room
- An abnormal amount of soot in and around the furnace
- Underground oil storage tanks
- Gas burners inside the heat exchanger
Underground oil storage tanks