FREE FALL
Chapter 12 Terms
Chapter 8 Terms
ABBREVIATIONS
Chapter 7 Terms
Chapter 6 Terms
100

 a highly efficient, quiet, and reliable positive-displacement pump commonly used in HVAC and refrigeration,

What is a scroll compressor?

100

a component in an HVAC "hard start kit" that provides an extra boost of torque to help an air conditioner or heat pump compressor start up.

What is Rheostat?

100

 A capacitor comprised of two capacitors with different capacity values that share one common plate.

What is a dual capacitor?

100

I am XMFR

What is transformer?

100

A collapsing magnetic in a coil will.............

What is induce EMF?

100

The voltage of a building’s electrical wiring, which is usually 120 Vac or 240 Vac.

What is line voltage?

200

a secondary control unit, often a basic model, that operates in conjunction with a master thermostat to manage additional heating/cooling zones or to extend the capacity of a system.

What is a slave thermostat?

200

 An electronic component that regulates current flow based on an external signal or special condition applied.

What is an active component?

200

The opposition that results in resistance to current flow.

What is captive reactance(XC)

200

I am the letter C

What is COMPRESSOR?

200

Two coils wrapped around a laminated metal core in a transformer.

What is a winding?

200

 A generator that generates dc by using a special slip ring that is split in half, allowing current to flow in one direction only.

What is DC generator?

300

He is the director of the HVAC dept.

Who is Mr. Tate?

300

The maximum current that can be stopped when contacts open.

What is current-interrupting capacity?

300

The unit for capacitance.

What is microfarad?

300

I am rly

What is relay?

300

Components of a relay that are configured in normally open or normally closed combinations.

What are contacts?

300

 The principle used to generate electricity in many devices, resulting from the generation of electromagnetic force (emf).

What is magnetic induction?

400

He is your lead instructor.

Who is Mr. Whatley?

400

 A rectifier that uses two diodes and conducts during the entire cycle but with reduced voltage.

What is a full-wave rectifier?

400

 An insulator located in between two conducting plates of a capacitor.

What is dielectric?

400

I am GPSR.

What is general purpose switching relay?

400

An electromagnetic device used in many trade industries and varies based on its intended purpose.

What is a solenoid?

400

A generator that generates ac by using slip rings and brushes to keep the end loop wires from twisting together as it turns within the magnetic flux.

What is AC generator?

500

 a central control unit for HVAC, specialized heating, or cooling,

What is a master thermostat?

500

The status of a switch that reverts to their normal state after activation.

What is momentary?

500

 A single-phase motor capacitor that is energized while the motor is operating and dissipates the heat generated by current flow.

What is a run capacitor?

500

I am tstat

What is thermostat?

500

In a heating system, a safety control that ensures that a measured temperature does not exceed a certain temp

What is a temperature limit switch?

500

A device with a wire loop arrangement where the loop rotates within the magnetic poles.

What is generator?

600

I need R to make heat.

What is the R wire?

600

 An electronic component that does not require an external signal for operation.

What is passive component?

600

The measure, in ohms, of a capacitor’s ability to store a charge.  

What is capacitance?

600

I am FR

What is fan relay?

600

A reverse flowing current in a magnetic field. Also known as counter emf.

What is back emf?

600

 Current that changes direction at a periodic rate.

What is alternating current?

700

You can operate this thermostat any where in the world

What is a wifi-enabled thermostat?

700

 A transducer that senses current by magnetic induction like the inductive clamp on a multimeter.

What is a current transducer

700

 A single-phase motor capacitor that assists a motor in starting up.

What is a start capacitor?

700

I am COM.

What is common?

700

A transformer with a higher primary voltage than the secondary voltage.

What is a step-down transformer?

700

 A device that only produces alternating current. An alternator has fixed wire loops to form a stator.

What is an alternator?

800

 a measure of how difficult it is for current to flow.

What is Resistance?

800

a component in an HVAC "hard start kit" that provides an extra boost of torque to help an air conditioner or heat pump compressor start up.

What is a hard start capacitor?

800

What is CONT.

What is contactor?

800

A type of magnetism generated by electric current.

What is electromagnetism?

900
I am an energy efficient motor.

What is an ECM?

900

What is SEQR.

What is sequencer?

1000

I am abbreviated LPS?

What is a low pressure switch/

1000

I am GFCI.

What is ground-fault circuit interrupter?