Quiz on Switching Circuits and Electrical Components

What is the primary purpose of symbols in electrical control circuits?

• To represent electrical components

• To show circuit resistance

• To indicate voltage levels

• To measure current flow

What does a Normally Open (NO) switch do when pressed?

• It changes to Normally Closed

• It turns off the circuit

• It lights the lamp

• It remains in the closed state

What is a maintained contact switch?

• A switch that cannot be turned off

• A switch that has multiple poles

• A switch that only operates momentarily

• A switch that changes state and stays in that state

How many circuits can a single-pole switch control?

• Four

• Three

• Two

• One

What is the function of a Single Pole Double Throw (SPDT) switch?

• To connect one input to two outputs

• To control multiple circuits simultaneously

• To measure electrical resistance

• To act as a dimmer switch

What is the common terminal in a double-throw switch?

• The terminal that is always open

• The terminal that is always closed

• The terminal that connects to the power source

• The terminal that connects to one of two outputs

What does an SPST switch do?

• Acts as a dimmer switch

• Controls two circuits at once

• Turns a single circuit on or off

• Connects to multiple outputs

What is a three-way switch also known as?

• A Single Pole Double Throw (SPDT) switch

• A series circuit switch

• A Double Pole Single Throw (DPST) switch

• A momentary contact switch

What happens when a momentary contact switch is pressed?

• It opens the circuit

• It changes the voltage level

• It connects the movable contact to stationary contacts

• It permanently closes the circuit

What is the role of traveller terminals in a three-way switch?

• To indicate voltage levels

• To connect to a second three-way switch

• To serve as a common terminal

• To measure current flow