Quiz 4: Building Systems

Series

the parts of a circuit are connected one after another, and the resistances and voltages add up

Parallel circuits

when two or more branches or loads in a circuit are connected between the same two points

Short circuit

sometimes an accidental connection is made between points on a circuit, this connection shortens the circuit and lets the electricity take a shortcut back to the source

Circuits are the pathways; electrical current is the movement that flows through the circuit pathways.

What are disadvantages of fluorescent lamps

They contain small amounts of mercury, which is a toxic material. This makes it hard to dispose of and fails the EPA TCLP

Convection

The transfer of heat due to the bulk movement of molecules within fluids

Voltage

the electrical potential difference that pushes electrons through a wire

Amperage

the electrical current, or the volume and speed of electrons flowing past a specific point in a circuit per second.

Ohm ( Resistance)

how much a material opposes or slows down the flow of electrical current.

Wattage (watt)

measures total electrical power—the rate at which electrical energy is generated, consumed, or converted into another form of energy over time.

What is the primary use of ambient lighting?

To illuminate a space using the glow of diffused and indirect lighting

basics of electrical transmission

Starts at the generating station, then to transmission substation, then to transmission line, then to area substation, then to transformers, and lastly to the residential or commercial customer.

type of electrical information included in the interior design drawings portion of CD

Electrical outlets, switches, and lighting fixtures and their type

What (4 things need to be present) biological contaminants need to grow in a building

1. Source 2. Water 3. Nutrients 4. Temp between 40-100 degrees F

what type of heat system is hydronic?

Hot Water System or Steam System

What does HVAC stand for?

Heating, Ventilating, and Air Conditioning

What does VOC stand for?

Volatile organic compounds

What does R-value measure for?

Thermal resistance

What is a lamp in lighting terms

Light bulb

Vacancy sensors

require the person to manually turn on but will automatically turn off

Occupancy sensors

automatically turns both on and off

PIR (passive infrared)

detects body heat and motion

Ultrasonic sensors

bounce high-frequency sound waves around a space to detect minor movements

Photocells

measure amount of sunlight entering a space, if there is plenty, the system automatically turns off or dims electric lights to save energy

Timeclocks and Timers

programmed controllers that turn lights on or off based on a specific schedule

color temperature

Based on the temp to which a light-absorbing body must be heated to radiate a light similar in color to the color of the source in question

Where is GFCI, or ground fault circuit interrupter required?

In areas where any leaking electricity would cause extreme hazard

What is Color Rendering Index (CRI)

used to measure the

ability of a light source to reproduce colors of objects

true to a natural light source

Federal Energy label that compares energy efficiency

Energy Guide Label

AC current

alternating

DC Current

constant/continuous

Know the difference between panel board and switchboard

Panel board and switchboard have the same function but a panel board is a smaller scale than switchboards

What is a conduit

Protective tubing that shields electrical wires from damage

What is a junction box

Enclosures for housing and protecting electrical wires or cables that are joined together in connecting or branching electrical circuits

What is Glare

A result of excessive contrast or of light coming from the wrong direction

Volt

a unit of voltage

What is color Temperature measured in

Degrees kelvin

What is a type of glare from a light source called

veiling reflection and reflected glare