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HVAC 1

100

If an MAU isn't working, a building may experience this, making doors hard to open.

Negative Pressure

200

This tool is used to measure air velocity in a duct

Anemometer

300

This device in a duct system opens and closes to control the volume of air

Damper

400

This section of an RTU uses outdoor air to provide "free cooling" when ambient temperatures are low.

Economizer

500

This type of cooling tower air flow design moves air horizontally across the water.

Crossflow

Mechanical

100

This tank stores compressed air to prevent the motor from constantly cycling.

Receiver Tank

200

This type of MAU uses a heat exchanger to keep combustion gases separate from the air stream.

Indirect-Fired Unit

300

This type of fan moves air perpendicular to the shaft.

Centrifugal Fan

400

This mechanical safety device is designed to snap or "fail" first if a machine jams, protecting the expensive motor.

Shear Pin

500

 This instrument measures the rotational speed of a shaft in RPMs.

Tachometer

Design

100

This software platform is the industry standard for 3D Building Information Modeling

Revit

200

This is the term for the "skin" of the building, including the roof, walls, and windows.

Building Envelope

300

This document identifies every piece of equipment, such as pumps or RTUs, by a specific tag number.

Equipment Schedule

400

: This term refers to the total weight of a building's structure, including fixed equipment like chillers and boilers.

Dead Load

500

Which Inventor constraint is used to make two lines stay on the same infinite line without necessarily touching?

Collinear Constraint.

Electrical

100

This unit measures electrical resistance.

Ohm

200

This device allows you to adjust the speed of an AC motor.

VFD

300

What is the calculation for power in a 3 phase system (using volts and amps)

Power = Volts x Amps x 1.732

400

This component stores electrical energy in an electric field.

Capacitor

500

What is the phase-to-neutral voltage in a 3-phase system where the line to line voltage is 480V

~277V

Plumbing

100

This flexible plastic tubing has largely replaced copper for domestic water lines.

PEX

200

This type of valve uses a round disc to stop flow and only requires a 90-degree turn to close

Ball Valve

300

 This tool creates a watertight connection on copper without the use of a torch or solder.

ProPress

400

This material is used to seal the threads on a pipe to prevent leaks.

Teflon tape (or pipe dope)

500

This specific backflow preventer is required for high-hazard connections like chemical mixing vats or boiler feeds.

What is an RPZ