Utilities Preboard Exam Flashcards

Comprehensive vocabulary flashcards covering utilities, HVAC, plumbing, fire protection, and acoustics based on preboard exam materials.

Color Temperature

The lighting characteristic that most affects the mood and atmosphere of a space; for example, $2700\,K$ describes a warm residential atmosphere.

Ambient Lighting

The lighting layer that primarily provides overall illumination for a space.

Grille

An HVAC component installed at the end of a duct to allow conditioned air to enter or return from a space while generally not providing directional control of airflow.

Indirect Waste

A waste connection design where the waste pipe does not connect directly to the sanitary drainage system, instead discharging into a receptor with an air gap to prevent contamination.

Task Lighting

Lighting used with the primary purpose of illuminating specific task areas.

Wall Washing

A lighting technique used to uniformly illuminate museum walls.

Daylighting

A design strategy that reduces energy and improves comfort by utilizing natural light.

Fire Hose

Fire protection equipment used to convey water from a standpipe or hydrant to the fire, allowing firefighters to direct the stream at the flames.

White Ceiling

The surface reflectance type that contributes most to the effectiveness of indirect lighting.

Lumen ($lm$)

The unit used to measure luminous flux.

Lux ($lx$)

The unit of illuminance defined as $Lumen/m^2$.

HDPE (High-Density Polyethylene)

A plastic piping material joined by heat fusion, producing a continuous, leak-resistant connection without solvent cement or threads.

Storm Drainage System

An approved system specifically intended for the discharge of storm drainage, separate from sanitary sewers or septic tanks.

Branch

A horizontal pipe in a plumbing drainage system that receives wastewater from one or more fixture drains and conveys it to a soil stack, waste stack, or building drain.

Data Room

A room specifically designed to house network equipment, servers, patch panels, and communication cabling for data services.

Network Switch

A networking device used to connect multiple computers within a LAN while forwarding data only to the intended destination.

Fire Department Connection (FDC)

Also known as a Siamese Connection; it allows the fire department to connect its pump to a building's standpipe or sprinkler system to supplement the water supply.

Air Chamber

A vertical section of pipe installed near a quick-closing valve containing trapped air to cushion pressure surges and prevent water hammer.

PTZ Camera

A Pan-Tilt-Zoom CCTV camera with the ability to pan, tilt, and zoom remotely to monitor wide areas and focus on specific locations.

Loop Vent

The most appropriate venting method for a kitchen island sink installed away from walls where a conventional vertical vent is impossible.

Building Sewer

The pipe extending from the building drain to the public sewer or private disposal system.

Electrical Metallic Tubing (EMT)

A thin-wall, non-threaded metallic raceway commonly used for exposed and concealed electrical installations.

Shielded LED Panel

The most appropriate luminaire for a lighting designer to use to minimize glare in an office.

ACH

Air Changes per Hour; an HVAC measurement of the number of times the air inside a room is replaced in one hour.

Resilient Flooring with Underlayment

The best method for reducing impact noise between two floors.

Staggered-stud or Double-stud Walls

A design strategy involving these wall types with insulation to effectively reduce noise transmission between hotel rooms.

Reverberation Time

The duration sound lingers in a space; cathedrals generally require the longest time, while classrooms require short times.

Wall-mounted

A term referring to the method of installation for a water closet rather than its flushing action.

Office Illuminance

The recommended illuminance level for office workspaces is typically between $300\,lux$ and $500\,lux$.

Decibel ($dB$)

The unit commonly used to measure sound intensity level.

Flutter Echo

A sound phenomenon most likely to occur in a room with many parallel hard walls.