HVAC drill: Wiring and motors

10 questions · Untimed · Every option explained

Thermostat wiring, ladder and pictorial diagrams, single- and three-phase motors, capacitors, ECMs, actuators and meter use. Ten questions from our wiring and motors bank, with an explanation for every option.

Line drawing of a condensing unit control panel with a contactor and a dual run capacitor, a condenser fan motor beside it and a bundle of thermostat wires

Before you start

Every question has four options and one best answer.
Check each answer to see why every option is right or wrong before moving on. Checked answers cannot be changed.

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