Question 1

LED lamps are not as energy efficient as fluorescent lighting fixtures and they don't last as long.

Accepted Answer

LED lamps are actually more energy efficient than fluorescent lighting fixtures and have a longer lifespan.

Question 2

Energy efficiency is one of the most important features of a green home.

Accepted Answer

Energy efficiency is crucial in reducing the carbon footprint of a home and conserving natural resources, making it one of the primary features of a green home.

Question 3

A __________ can be set to lower the temperature inside the house at night while home owners are sleeping and when they are away during the day at work or school.
A) motion sensor
B) occupancy sensor
C) programmable thermostat
D) dimmer switch

Accepted Answer

A programmable thermostat is specifically designed to allow homeowners to set a schedule for when their HVAC system turns on and off or adjusts temperature settings, allowing for energy savings and greater efficiency. Motion and occupancy sensors could potentially help with energy savings, but they do not provide the same level of control over temperature settings that a programmable thermostat does. Dimmer switches are not related to HVAC systems and are used for controlling lighting levels.

Question 4

One of the best choices for energy-efficient lighting is incandescent lighting fixtures.

Accepted Answer

Incandescent lighting fixtures are actually one of the least energy-efficient options available. LED and CFL (compact fluorescent) bulbs are much more energy-efficient choices for lighting.

Question 5

Electric water heaters supply domestic hot water and come in a remotely located tank type that supplies the hot water needs of an entire house or a ___________ type that is located near the fixture(s) it supplies.
A) tankless
B) round
C) square
D) seamless

Accepted Answer

Tankless water heaters are the type that are located near the fixture(s) they supply, making them a better choice than the remotely located tank type when hot water is only needed in one or two locations in the house.

Question 6

Electric heat pump water heaters are more than __________ as efficient as electric resistance water heaters.
A) two times
B) three times
C) four times
D) five times

Accepted Answer

Electric heat pump water heaters are more than two times as efficient as electric resistance water heaters because they use electricity to move heat from one place to another instead of generating heat directly, making them much more energy-efficient.

Question 7

One way to eliminate lights being left on when either they are not needed or when no one is in a room is to install a __________ to turn lights on and off automatically.
A) motion detector
B) dimmer switch
C) photo cell
D) double-pole switch

Accepted Answer

A motion detector is the best choice as it will detect when someone enters or leaves a room and turn the lights on or off accordingly, ensuring that lights are only on when they are needed. Dimmer switches allow the user to adjust the brightness of the lights but do not turn them off automatically. Photo cells can detect changes in natural light and adjust lighting levels accordingly, but do not turn the lights off when no one is in the room. Double-pole switches control power to two separate circuits and are not designed to automatically turn lights on or off.

Question 8

Green building is the process of designing and building a home that minimizes its impact on the environment both during construction and over its useful life.

Accepted Answer

Green building focuses on sustainable and environmentally conscious practices such as using energy-efficient materials, reducing waste, and maximizing indoor air quality. These practices aim to minimize the negative impact of construction and the home's operations on the environment.

Question 9

Fan power is measured in __________.
A) foot pounds
B) cubic feet per minute
C) square feet per minute
D) None of the above

Accepted Answer

Fan power is typically measured in cubic feet per minute (CFM), which is a measure of the amount of air that a fan can move in a minute. Foot pounds and square feet per minute are not typically used to measure fan power.

Question 10

There are three features of exhaust fans to consider when selecting one: electrical efficiency, noise level, and __________.
A) color
B) mounting options
C) location
D) power

Accepted Answer

The answer of There are three features of exhaust fans...

Question 11

Without mechanical ventilation, the __________ level inside the house will rise to an unhealthy level and the durability of the structure may suffer as well.
A) light
B) sound
C) humidity
D) smoke

Accepted Answer

Without mechanical ventilation, the humidity level inside the house can rise to unsafe levels, leading to growth of mold and mildew, which can cause health problems and weaken the structure.

Question 12

Fluorescent lamps only use one-quarter of the electricity that incandescent lamps use and they last up to 10 times longer.

Accepted Answer

This statement is true, fluorescent lamps are more energy-efficient and have a longer lifespan compared to incandescent lamps.

Question 13

Energy-efficient appliances may cost __________ less-efficient models; but the reduced operation expense more than offsets the upfront cost over the life of the equipment.
A) less than
B) more than
C) the same as
D) None of the above

Accepted Answer

Energy-efficient appliances typically cost more than less-efficient models initially, but the savings in operational costs over time can compensate for the higher upfront price.

Question 14

Attenuation is the internationally recognized unit of loudness and is measured in decibels (dB).

Accepted Answer

Attenuation refers to the reduction in power of a signal, sound, or other physical property, while loudness is a subjective measure of sound intensity perceived by the human ear and is not measured in decibels (dB). Decibels are used to quantify sound intensity levels, not loudness directly, and are not a unit of loudness.

Question 15

A family of chlorinated chemicals that are toxic under certain exposure conditions are called dioxins.

Accepted Answer

This statement is true. Dioxins are a family of toxic chemicals that can be harmful to human health and the environment. They are formed as byproducts during certain industrial processes and can also be found in small amounts in some natural sources. Exposure to dioxins has been linked to a range of health effects, including cancer, reproductive and developmental problems, and immune system dysfunction.

Question 16

Loads that consume electricity even when the load is not performing its intended function are called ghost loads.

Accepted Answer

The answer of Loads that consume electricity even when the...

Question 17

Photovoltaic is the name used to describe the effect of sunlight striking a specially prepared surface and producing electricity.

Accepted Answer

Photovoltaic is indeed the term used to describe the process of converting sunlight into electricity using a specially designed panel (often called a solar panel).

Question 18

Automatic controls such as timers will reduce electricity waste in a house.

Accepted Answer

Automatic controls such as timers can help to reduce electricity waste in a house by turning off lights or other appliances when they are not in use. This can lead to significant energy savings over time.

Question 19

The __________ of a house blocks air from moving between the inside of the house and the outside and holds the conditioned (heated or cooled) air in the house.
A) floor
B) basement
C) roof
D) air barrier

Accepted Answer

The air barrier of a house is responsible for preventing air from moving between the inside and outside of the house. It is what holds the conditioned air in the house, making it an essential component of a well-insulated and energy-efficient home. The floor, basement, and roof all play important roles in preventing heat loss and regulating temperature, but they do not serve the same function as the air barrier.

Question 20

The higher the CFM number, the more air an exhaust fan can exhaust into the outside air.

Accepted Answer

This is correct. CFM stands for cubic feet per minute, which is a measurement of how much air a fan can move in one minute. Therefore, a higher CFM number indicates a greater capacity to move air and exhaust it to the outside.

Quiz 21: Green Wiring Practices

LED lamps are not as energy efficient as fluorescent lighting fixtures and they don't last as long.

Energy efficiency is one of the most important features of a green home.

A __________ can be set to lower the temperature inside the house at night while home owners are sleeping and when they are away during the day at work or school.

One of the best choices for energy-efficient lighting is incandescent lighting fixtures.

Electric water heaters supply domestic hot water and come in a remotely located tank type that supplies the hot water needs of an entire house or a ___________ type that is located near the fixture(s) it supplies.

Electric heat pump water heaters are more than __________ as efficient as electric resistance water heaters.

One way to eliminate lights being left on when either they are not needed or when no one is in a room is to install a __________ to turn lights on and off automatically.

Green building is the process of designing and building a home that minimizes its impact on the environment both during construction and over its useful life.

Fan power is measured in __________.

There are three features of exhaust fans to consider when selecting one: electrical efficiency, noise level, and __________.

Without mechanical ventilation, the __________ level inside the house will rise to an unhealthy level and the durability of the structure may suffer as well.