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Residential Energy Analyst
The AFUE rating of a heating system is the:
a) Ratio of annual input energy to annual output energy.
b) Ratio of semi-annual input energy to annual output energy.
c) Ratio of heat rise to heat loss of heating system.
d) Ratio of annual output energy to annual input energy.
The rate of combustion air intake for a Catagory I fan assisted atmospheridally vented appliance is controlled by:
a) Draft inducer
b) Outside ambient temperature
c) Flame temperature
d) Stack draft
Which blower door fan configuration allows the most air movement?
a) No rings.
b) One ring.
c) Three rings.
d) Two rings.
Which leaky faucet is most costly to a homeowner?
a) Bathroom hot water faucet.
b) Bathroom cold water faucet.
c) Outdoor faucet.
d) Kitchen cold water faucet.
The primary purpose of a blower door fans adjustable configuration is to:
a) Control the net free area of the fan housing.
b) Control the gross free area of the fan housing.
c) Allow for greater fan speed to reach test pressure.
d) Allow for minimal fan speed to reach test pressure.
Negative pressures measured in the lower levels of a structure and positive
a) Cold air rising and hot air falling.
b) The ambient temperature being adjusted too high.
c) Stack effect.
d) Oversized attic venting equipment.
What type of burner has no air adjustment on a nid efficiency heating system.
A(n)__________ is an instrument used to measure air velocities.
a) CFM meter
d) micron gauge
How many tons(weight) of air moved by a 3-ton A/C system with a base of 400 cfm per ton over a 12-hour period of time.
Which of the following is the mnost misleading influence for thermal images?
a) Light at distance from the object.
b) Effects of solar radiation.
c) Areas of shading.
d) Surface dryness.
Two identical homes are pressurized to the standard test pressure. Which has the greater air leakage?
a) The home with the greater volume of air flowing through the fan housing of the blower door.
b) The home with the least volume of air flowing through the fan housing of the blower door.
c) The home with the largest heating and cooling system.
d) The home with the greatest number of windows and doors.
A required step in preperation for a negative pressure blower door test is to:
a) Direct the fan outlet toward the interior of the building.
b) Direct the fan outlet toward the exterior of the building.
c) Direct the fan inlet toward an interior door oening facing out.
d) Direct the fan inlet toward the exterior of the building.
The inverse of the U value is:
a) T factors
b) K factors
c) R=X factors
d) R value
How many dimensions are used to calculate volume?
What is the recommended CFM for the net free area of a return air filter grill per square inch?
a) 1.7 CFM
b) 2 CFM
c) 2.7 CFM
d) 1 CFM
Gas leaks can be safely located.
a) With a good sense of smell and a match.
b) With the sense of touch and a cigarette lighter.
c) With soap solution and/or an electronic gas leak detector.
d) With water and/or visual observations.
Which is the best test method for calculating total CFM when using an electric furnace?
a) The return air grill velocity times the gross area.
b) Temperature rise method.
c) All supply air grills velocity times the gross area.
d) Humidity rise method.
Which of the following best describes the job of a technical energy auditor?
a) Collect and analyze data and perform diagnostic tests and water analysis.
b) Write investment reports and perform diagnostic tests and water analysis.
c) Write investment reports, perform diagnostic tests, and inspect building envelopes.
d) Collect and analyze data, inspect building envelopes, and perform diagnostic tests.
Air leakage points and pathways can be located using a thermal imager while a blower door creates:
a) Air movement of different temperatures.
b) Moisture laden areas whiuch are the same temperature.
c) Pressure anomalies between internal walls of a structure.
d) A smoke filled room.
Which best describes a blower door?
a) A diagnostic tool designed to measure the characteristics of a bulding's air tightness.
b) A diagnostic tool used to measure the volume of a structure.
c) A diagnostic tool used to ventilate a building.
d) A diagnostic tool designed to depressurize the building only.
When disrupting discovered lead, contractors are required to:
a) Notify building occupants, reduce humidity, minimize work area dust, and clean up thoroughly.
b) Wear Personal lead exposure monitors in compliance with EPA and OSHA regulations.
c) Be certified, contain the work area, minimize dust, and clean up thoroughly.
d) Increase humidity levels, use a blower door to pressurize the building, minimize dust, and clean the area.
When Testing a duct systems air leakage using a duct tester.
a) A blower door is used to neutralize pressure between the inside of the conditioned space and the inside of the duct work.
b) A blower door is used to neutralize pressure between the inside of the conditioned space and the outside of the duct work.
c) A blower door is used to neutralize pressure between the outside of the conditioned space and the inside of the duct work.
Asbestos becomes a hazard when:
a) It begins fracturing in the human blood stream.
b) Exposed to oopen woru d a nd olfactory cells.
c) Microscopic fibers become airborne and are breathable.
d) It is found in enviroments with over 71.5 relative humidity.
Who sets the standard for the expected level of customer service?
If a natural gas furnace cycle begins and ends twice before reaching the thermostat set point, this is a symptom of:
a) A malfunctioning control baord.
b) A low heat anticipator setting.
c) A defective high-limit switch.
d) A high heat anticipator setting.
Which of the following has the highest resistance to current flow?
a) Copper wire.
d) Rubber insulation.
To accurately measure steady state temperature rise of a gas furnace, it is critical that:
a) Ambient temperature is added to the supply temperature.
b) Temperature measurements are taken as far away from the furnace as possible.
c) Temperature measurements are taken as close to the furnace as possible.
d) Temperature probes are within 24 inches of the plenum, and avoid radiant influences.
Which is the most deadly product of incomplete combustion.
a) Carbon Monoxide.
b) Carbon Dioxide.
c) Hydrogen monoxide,
ONe kilowatt is equivalent to:
a) 3.413 BTU.
b) 3.1416 BTU.
c) 1.08 BTU.
d) 3413 BTU.
What is the primary reason for closing interior garage doors before blower door testing?
a) Garages are always considered outside the pressure boundary of the living area.
b) Garages can never be sealed off properly when conducting a blower door test.
c) Garages are always considered inside the pressure boundary of the living area.
d) The fresh air in a garage is "bonus" air, but can't be relied on all the time.
When checking an elecrtric water heater thermostat's settings:
a) The lower element comes on first, so it must be set at a higher temperature.
b) Both upper and lower thermostats are set to the same temperature.
c) The top elwemwnt should always be set higher than the lower element.
d) The top element should always be set lower than the top element.
When testing a medium-efficiency gas furnace, the draft test location should be:
a) Just above the flames.
b) In the flue piping at the chimney entrance and after the regulator.
c) In the flue piping within 18 inches of the breach.
d) At the gas manifold.
To protect the reference tube from fan generated turbulence, it is necessary to extend it:
a) Approximately 1 foot outside through the temporary enclosure.
b) Approximately 5 feet outside through the temporary enclosure.
c) Approximately 5 feet inside the temporary enclosure.
d) Approximately 15 feet outside throgh the temporary enclosure.
Dead or living mold may cause health issues including:
a) Hearing loss.
b) Joint pain.
c) Allergis reactions.
d) Internal bleeding.
What are some wind pathways for air penetration during heating season?
a) Through items inside a foundation/wall, floor/wall, or wall/window.
b) Through items in a solid foundation/wall, floor/wall, wall/window, or wall/roof, and through holes purposely left exposed in the concrete blocks and mortar joints.
c) Through connections at a foundation/wall, floor/wall, wall/window, or wall/roof, and through materials such as concrete blocks and mortar joints.
d) Through items inside a foundation/wall, floor/wall, or wall/roof, and through materials found near concrete blocks and mortor joints.
If a marterial like asbestos is described as "friable," that means:
a) It has the ability to refracrt heat molecules.
b) It is lighter than air.
c) It is not easily melted.
d) It is continuously inb the process of fracturing.
Air flow is most affected by which of the following:
b) Air filters.
c) Heated load.
d) Cooling load.
Typical ex-filtration points of a structure are:
a) Walls, floors, sill plates, and drains.
b) Cantilevered floor assemblies, attic knee walls, and cathedral ceilings.
c) Insulated crawl spaces.
d) Attic hatches, chimney flues, dropped ceilings, lighting fixtures, and plumbing penetrations.
Compact fluorescent lamps use approximately:
a) One-third as much electricity as incandescent lamps and last about twice as long.
b) Two-thirds as much electricity as incandescent lamps and last about twice as long.
c) One-third as much electricity as incandescent lamps and last about 5 times as longer.
d) Two-thirds as much electricity as incandescent lamps and last about 5 times as long.
When testing supply duct air leakage with a duct tester.
a) Remove all supply air registers and seal the return air grills.
b) Make sure all supply air registers and return air grills are open.
c) Seal off all supply air registers and return air grills.
d) Connect an air vent tube to the outside of the structure.
A standard-efficiency natural gas furnace is identifiable by its:
a) Draft hood and standning pilot.
b) ECM motor and PVC vent.
c) ABS and PVC vent materials.
d) Gas valve and draft regulator.
Rate air flow for a blower door tester can be calculated if:
a) The velocity back pressure and area of the room are known.
b) The area of the opening and pressure difference are known.
c) The height, length, and width of the structure are known.
d) The height and shading of the structure are known.
Which of the following older building products would most likely contain lead.
a) Counter tops.
b) Knob and tube wiring.
d) Concrete floors and foundations.
What is heat infiltration loss?
a) Heat generated in a structure that does not heat any specific place, but does heat some rooms by condition.
b) The result of radiant heat that causes expansion, indirectly causing cold air to leak into a structure; cold air moves into warmer area.
c) Loss that results from a faulty fan and ventilation through the duct work in a structure.
d) Energy required to warm outdoor air leaking in through cracks and crevices around doors and windows, or open doors and windows, and through some building materials.
Which of the following is considered a type of mold?
A mid-efficiency propane furnace is identifiable by its:
a) Natural draft, metal venting, and electronic ignition.
b) Draft inducer, metal venting, and electronic ignition.
c) Natural draft, plastic venting, and standing pilot.
d) Draft inducer, plastic venting, and electronic ignition.
All differential pressure manometers have two taps, which are:
a) A reference and an output.
b) An input and a reference.
c) Both for output.
d) An input and an output.
Which weighs more per cubic foot?
a) Dry air.
b) Superheated air.
c) Moist air.
d) None of the above: all air weighs the same.
R-value increases proportionately with the:
a) Time and date of the materials.
b) Thickness of the material.
c) Cost of the material.
d) Length of the material.
What are the major components of a blower door assembly?
a) Temporary door enclosure, fan, speed control, and manometer.
b) Temporary door enclosure, hoses and tubing, and flexible duct.
c) Door enclosure, electric motor, hoses and tubing, and anemometer.
d) Permanent door enclosure, fan, speed controller, and manometer.
Flow sensors in a blower doors fan housing are designed to measure:
A blower door can induce or force air through:
a) All windows and doors of a structure.
b) All holes and penetrations in the shell of a structure.
c) The holes and penetrations in the roof of a structure.
d) All walls, ceilings, and floors of a structure.
What is the primary purpose of a blower door?
a) To be used to calculate the air flow of a bulding heating and cooling system.
b) To prevent air leakage in a building.
c) To detect solar energy entering the shell of a structure.
d) To quantify and locate air leakage.
Flue gas levels of oxygen for atmnospheric natural gas furnaces and boilers should be between:
a) 4% and 14%
b) 6% and 9%
c) 3% and 6%
d) 2% and 10%
Calculate the area in inches of an exterior door with dimensions of 6.67' by 3'.
a) 20.01 SqIn.
b) 216 SqIn.
c) 2916.12 SqIn.
d) 2881.44 SqIn.
Turbulaiton of hot flue gases helps:
a) Slow the combustion process and prevent burner soot.
b) Slow the rate of flue gas flow, keeping gases in the heat exchanger longer.
c) Increase the rate of flue gas flow, keeping gases in the heat exchanger longer.
d) Decrease the rate of the combustion process and keep gases in the heat exchanger.
How a person looks, talks, writes, acts, and works determines whether a customer thinks they are a(n):
What is the ambient tempoerature?
a) The temperature at which ice forms.
b) The temperature surrounding an object.
c) The temperature in a refrigerator.
d) The temperature inside an object.
An electrical problem in which current is re-routed from its projected path to a path of much lower resistance is called a(n):
a) Open circuit.
b) Direct circuit.
c) Grounded circuit.
d) Shorted circuit.
When water is not a provided utility, total water usage in a residence is found by:
a) Subtracting water used for toilets and sewage from the total amount.
b) Using the water bill from a neighbor and adding an amount for waste water usage.
Subtracting of all gray water and adding 50% to the total amount used.
c) Adding the water usage in each area together to represent the total.
Which of the following electrical conditions redquires correction before adding insulation in an attic.
a) Wiring laid perpendicular to the ceiling joists.
b) Wires joined outside a junction box.
c) Oversized conductors in a junction box.
d) Lightning rods mounted to the roof decking.
Outdoor water audit calculations include water usage for:
a) Irrigation systems.
b) Water fountains.
c) House pressure washing.
d) Swimming pools.
A thermal imager can detect:
a) Any color of all materials.
b) Convection of air streams.
c) Radiation based on pressure.
d) Radiation based on temperature.
Calculate the area of a knee wall in the shape of a triangle with a base of 12'6" and a height of 6'2". Round all figures to two decimal places.
a) 77.13 SqFt.
b) 38.75 CuFt
c) 38.56 SqFt.
d) 39.06 SqFt.
A visual inspection of an entire air conditioning system reveals traces of oil fittings or connections. These traces are potentially:
a) Normal oil leakage.
b) Not a problem.
c) Refrigerant leaks.
d) Air leaks.
The standard test pressure for measuring duct system tightness is:
a) 33 pa
b) 5 pa
c) 0 pa
d) 0 pa
The neutral wire on a 120-volt AC circuit is normally:
Scanning with a thermal imager while a blower door tester is operating is considered a(n)___process.
The correct size of the return air pathway to the air handler can be determined by:
a) Measuring the CFM and velocity.
b) The sum of all of the return grill areas.
c) Multiplying 1.08 times the pressure difference across the A coil.
d) Measuring the area of the supply opening at the air handler.
Which is required to convey products of combustion to the outside from a mnid-efficiency furnace.
a) Draft inducer.
b) Inducer fan.
c) Stack draft.
d) A power pump.
What is the recomended CFM for the net free area of a return air filter grill per square inch.
a) 2 CFM
b) 1.7 CFM
c) 1 CFM
d) 2.7 CFM
Customer expectations of service should always be;
a) Completed to a satisfactory level.
b) Relative to the quoted price for service.
c) Secondary to profit margins.
d) Exceeded for quoted service.
Which energy source produces most of the electricity in the U.S.?
a) Wind and solar.
b) Fossil fuel.
How is building integrity determined?
*QBy inspection, sight testing, and reports from previoius owners.
a) Only by a heating and air conditioning technician.
b) Only by duct blower tests conducted by a heating and cooling technician.
c) By inspection, testing, and visual, quantitative, and qualitative means.
Zero psia (pounds per square inch absolute) is:
a) A pressure which cannot be further reduced.
b) Approximately 14.7 psig at sea level.
c) Equal to 0 psig.
d) The same as atmospheric pressure.
A differential pressure manometer measures pressure of one zone:
a) With Reference To (WRT) another zone.
b) While Reading Tone (WRT) for another location.
c) With Regulated Turbulence (WRT) of another location.
d) With Real Time (WRT) in another location.
If an air conditioning system ahs excessive air flow:
a) Condensate will form too fast.
b) Too much moisture will be removed.
c) The latent load will not be satisfied.
d) The A coil will freeze up.
Flue gas levels of carbon monoxide air free in the venting system of natural gas, fuel oil,
and propane furnaces and boilers must never exceed:
a) 150 PPM
b) 400 PPM
c) 100 PPM
d) 200 PPM
Blower door results reveal potential energy savings by:
a) Educating clients.
b) Revealing air leakage.
c) Charging mechanical equipment.
d) Improving ventilation.
Which of the following is an accurate definition of accountability?
a) Being personally responsible for balancing one's own check book.
b) Being personally responsible for one's own actions.
c) The ability to balance books, place blame, and invoice quickly.
d) The ability to manage and place blame for employee actions.
A thermal break is:
a) A metal frame around a door or window acting to retard heat flow.
b) A wooden material added to a window to enhance its beauty and usefulness.
c) A non-conducting frame around a door or window acting to retard heat flow.
d) A level operated vent that can be added to windows and doors.
During a call for heat, the burner of a natural gas furnace cycles off after 6 minutes of runtime.
The fan continues to run, and after 3 minutes the burner cycles on and completes the heating cycle. This is a symptom of:
a) An oversized duct system.
b) A correctly adjusted heat anticipator.
c) A furnace cycling on the high-limit switch.
d) A furnace cycling correctly.
What two devides operated in tandem most accurately quantify duct leakage to the outside of a structure?
a) A duct tester and thermal camera.
b) A duct tester and a blower door.
c) A blower door and a pressure pan.
d) A pressure pan and a duct testing device.
Carbon monoxide poisoning is frequently misdiagnosed as:
a) Flu symptoms.
c) Addison's disease.
d) Coronary aretery disease.
Gross stack temperature minus combustion air temperature is the:
a) Minimum stack temperature allowed.
b) Condensation point temperature.
c) Net stack temperature.
d) Gross stack temperature.
Excess carbon build up on and around burners and scorching on the front of a atmospheric gas boiler is likely caused by:
a) High gas pressure and high flue gas oxygen levels.
b) Spillage and low oxygen levels.
c) Excess draft and high gas pressure.
d) Low gas pressre and high oxygen levels.
Understanding a customer's generation helps employees:
a) Better relate to customers.
b) Prepare more effective written reports.
c) Price products more effectively.
d) Take measurements more rapidly.
Complete combustion is only possible:
a) With end-shot burners.
b) With newer furnaces that have higher efficiency levels.
c) When the furnace has no combustion air.
d) In the presence of excess air.
Outer elements of a bulding, including walls, windows, doors, roofs, and floors, including those below grade, is ASHRAE's description of:
a) The structural integrity.
b) The thermal structure.
c) The structure only.
d) The building envelope.
Calculate the volume of a bulding with a length of 50'9", a width of 30'3", and a height of 8'.
a) 12,000 CuFt.
b) 12,281.5 CuFt.
c) 12,338.16 CuFt.
d) 12,190.15 CuFt.
The number one source of accidental carbon monoxide poisoning in North America is:
a) Back-drafting appliances or appliances that do not vent all the time.
b) Automobile exhaust.
c) Cracks in heat exchangers.
d) Unvented cooking appliances.
Air flow volume of an electric furnace can be calculated using the:
a) Temperature rise method.
b) Pressure velocity method.
c) Pressure rise method.
d) Velocity time method.
When using the temperature rise method to calculate air flow, which formula is used?
a) CFM = BTU/H X 1.08 X Delta T
b) CFM = BTU/H / 1.08 X Delta T
c) CFM = BTU/H / 1.08 / Delta T
d) CFM = BTU/H X 1.08 / Delta T
Increasing fuel pressure on a natural gas Category IV appliance will:
a) Increase flame temperature and decrease excess air.
b) Increase flue gas velocity and increase excess air.
c) Decrease flue gas velocity and increase excess air.
d) Increase excess air and decrease flame temperature.
Typical infiltration points of a structure are:
a) Rim joists, knee wall partitions, and utility penetrations.
b) Knee wall partitions, doors and windows, and utility penetrations.
c) Windows and doors, duct work, and knee wall partitions.
d) Rim joists, doors and windows, utility penetrations, and baseboards.
Which of the following is used to eliminate mold?
a) Sulfuric acid.
The standard unit for measuring the quantity of heat in a substance is:
a) Degrees Rankin.
b) Degrees Celsius.
c) Degrees Fahrenheit.
d) British Thermal Unit (BTU).
What is heat transmission loss?
a) Heat gained to the indoors from solar collection materials.
b) Heat transferred thorugh confining walls, glass, ceilings, floors, or other surfaces.
c) Heat that is contained for later use in a structure or residence.
d) Heat contained in insulation and non-conducting materials for transfer purposes.
Lead is a safety concern because:
a) IT is poisonous when ingested.
b) It attracts small children because of its sweet taste.
c) Lead oxide gas is now found to be the leading cause of respiratory disease.
d) It absorbs moisture and vitalizes mold growth.
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