Exercise 2: Switches

What is the main use of switches in electrical circuits?

Which of the following is a type of switch?

• Toggle switch

• Rotary switch

• Slide switch

• Dimmer switch

What happens when a switch is in its open state?

Which switch type allows selection between only two states?

• Knife switch

• Toggle switch

• Selector switch

• Push-button switch

What is the circuit diagram symbol for a toggle switch?

• 
• 
• 

What is the state of a normally open (NO) push-button switch when the button is released?

• Open

• Closed

What happens to the circuit when a normally open (NO) push-button switch is pressed?

• The circuit opens and current stops flowing.

• The circuit closes and current flows.

• Nothing happens to the circuit.

• The circuit becomes short-circuited.

Fill in the blank: The normally closed (NC) push-button switch is ______ when the button is pressed.

What is the symbol for the closed state of an NC push-button switch?

Fill in the blank: The selector switch allows connection to any of three different circuit ________.