HVAC electrical controls

HVAC electrical controls

Assessment

Flashcard

Professional Development

Hard

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8 questions

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1.

FLASHCARD QUESTION

Front

Name this device: Step up transformer, DPDT Relay, Controller, HOA switch

Back

DPDT Relay

2.

FLASHCARD QUESTION

Front

What's a relay?

Back

An automatic switch.

3.

FLASHCARD QUESTION

Front

A ladder wiring diagram is

Back

A representation of electrical circuitry in a system

4.

FLASHCARD QUESTION

Front

What is an example of a pilot duty control?

Back

A low voltage thermostat

5.

FLASHCARD QUESTION

Front

What is a step down transformer?

Back

A voltage converting device

6.

FLASHCARD QUESTION

Front

What does lock rotor current mean?

Back

The current inrush pulled by a motor at start up.

7.

FLASHCARD QUESTION

Front

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

Back

Safety

8.

FLASHCARD QUESTION

Front

What enables electric current flow? Options: Earth magnetic fields, A switch, Voltage potential differential, A transformer

Back

Voltage potential differential