Deck 2: Symbols and Schematic Diagrams

Question 1

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

Answer 1

True

Question 2

Normally ____________________ switches are drawn with the movable contact below and not touching the stationary contact.

Answer 2

open

Question 3

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

Answer 3

The function of a holding, sealing, or maintaining contact is to maintain a current path to the coil when the push button returns to its normal open position.

Question 4

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

Question 5

What are the two basic types of timers?

Question 6

____________________ symbols are employed to represent many common control sensing devices.

Question 7

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

Question 8

The symbol for a limit switch illustrates a ball float.

Question 9

Describe the contact symbol.

Question 10

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

Question 11

Name the four basic switch symbols.

Question 12

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

Question 13

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

Question 14

The double-acting push button has two terminal screws.

Question 15

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