Deck 7: Startstop Push Button Control

Question 1

What is the function of a holding contact?

Answer 1

The function of a holding contact is to maintain or hold a current path to the coil when the push button is released.

Question 2

A contactor is a relay that contains ____________________ contacts.

Answer 2

load

Question 3

A contactor may or may not contain auxiliary contacts.

Answer 3

True

Question 4

What is a motor starter?

Question 5

In a schematic, any contact that is marked with the same letter or number as a coil is controlled by that coil regardless of where it is located in the schematic.

Question 6

In schematics, what do dashed lines between components indicate?

Question 7

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

Question 8

Figure 7-1
The accompanying figure shows a(n) ____________________ diagram of a basic START-STOP push button control circuit.

Question 9

Schematic or ladder diagrams are read from right to left and from bottom to top.

Question 10

In schematics, electrical components are always shown in their energized or on state.

Question 11

What do wiring diagrams show?

Question 12

To simplify the task of converting the schematic diagram into a wiring diagram, ____________________ are added to the schematic diagram.

Question 13

The START-STOP push button circuit is the basis for many other control circuits.

Question 14

Figure 7-2
In the accompanying figure, when the START button is pressed, current flows through ____________________ coil.