Deck 2: Symbols and Schematic Diagrams

Question 1

What does it mean when components are shown connected by a dashed line in a schematic diagram?

Answer 1

When components are shown connected by a dashed line in a schematic diagram, it indicates that the components are mechanically connected together. If one is pressed, all that are connected by the dashed line are pressed.

Question 2

Normally open switches are drawn with the movable contact above and touching the stationary contact.

Answer 2

False

Question 3

The most common coil symbol used in schematic diagrams is the ____________________.

Answer 3

circle

Question 4

The movable contact of the normally open held closed switch is drawn below the stationary contact.

Question 5

Name the four basic switch symbols.

Question 6

____________________-automatic switches are generally used to select the function of a motor controller either manually or automatically.

Question 7

The double-acting push button has two terminal screws.

Question 8

____________________ show components in their electrical sequence without regard for physical location.

Question 9

The flow switch symbol is used for both liquid and air flow switches.

Question 10

____________________ switches are drawn by adding a wedge to one of the four basic switches.

Question 11

____________________ push buttons combine the operation of a selector switch and push button in the same unit.

Question 12

What are the two basic types of timers?

Question 13

The symbol for a limit switch illustrates a ball float.

Question 14

Describe the contact symbol.

Question 15

What is the function of the contact referred to as a holding, sealing, or maintaining contact?