HVAC electrical controls

Name this device

• Step up transformer

• DPDT Relay

• Controller

• HOA switch

What's a relay?

• A competition

• A power controlling device

• An automatic switch

• A phase monitor

A ladder wiring diagram is

• Instructions on how to safely use a ladder

• A description of power consumption

• A kind of power distribution

• A representation of electrical circuitry in a system

What is an example of a pilot duty control ?

• The main breaker of an electrical panel

• A motor starter

• A low voltage thermostat

• A defrost timer

What is a step down transformer?

• A voltage converting device

• A safety device

• An operating control

• A power generator

What does lock rotor current means ?

• Problem cause by defective motor

• Maximum starting torque of an electric motor

• The relation between working current and theoretical current of a motor

• The current inrush pulled by a motor at start up

What is the purpose of a grounding circuit on a high current load ?

• Safety

• To lower the magnetic field emissions

• To reduce power consumption

• To improve efficiency

What enables electric current flow ?

• Earth magnetic fields

• A switch

• Voltage potential differential

• A transformer

Which of these materials is a good insulator?

• Plastic and metal
• Metal and rubber
• Plastic and rubber

What type of circuit is used in your house?

• Light Circuits
• The best circuits
• Series Circuits
• Parallel Circuits