Magnetic Control and Switching Circuits I - Relays and Controls

Objective: Identify the parts of a relay.

• Coil, Armature, Contacts, Spring

• Resistor, Diode, LED, Switch

• Transistor, Capacitor, Inductor, Fuse

• Battery, Motor, Lamp, Buzzer

Refer to the diagram of the relay. What is the part labeled as 'Release spring'?

• Release spring

• Armature

• Coil

• Contact

Refer to the diagram of the relay. What is the part labeled as 'Armature'?

• Armature

• Coil

• Contact

• Spring

Refer to the diagram of the relay. What is the part labeled as 'Moving contact'?

• Moving contact

• Fixed contact

• Coil

• Armature

What is the part labeled as 'Fixed NO contact'?

Refer to the diagram of the relay. What is the part labeled as 'Fixed NC contact'?

Refer to the diagram of the relay. What is the part labeled as 'Core'?

• Core

• Armature

• Spring

• Contact

Refer to the diagram of the relay. What is the part labeled as 'Coil'?

• Coil

• Armature

• Contact

• Spring

Refer to the diagram of the relay. What is the part labeled as 'Coil terminals'?

• Coil terminals

• Armature contacts

• Normally open contacts

• Common terminal

Refer to the diagram of the Typical Simplified Electromechanical Relay Schematic. What is the name of the part labeled as the pivot?

• Pivot

• Coil

• Armature

• Contact