Chapter 5 Flashcards
Control relays, solenoids, and pilot lights are loads connected directly to line _______________.
L 2
A(n) __________ is a load that is connected indirectly to line 2 through overload contacts.
Magnetic motor starter
In a line diagram, control devices are connected between line 1 and the _________,
operating coil (or load)
_________ systems quickly identify the location and type of contacts controlled by a given device.
Number Cross-Reference
Each wire in a control circuit is assigned a(n) __________ to keep track of the different wires that connect the components in a circuit.
reference point
A control circuit is composed of three basic sections, which are the signal, decision, and _________ sections.
action
The ________ section of a control circuit start or stops the flow of current by closing or opening the control device’s contacts.
signal
The ________ section of a control circuit determines what work is to be done and in what order the work is to occur.
decision
The ______ section of a circuit causes work to take place.
action
A(n) ________ condition refers to any input into a circuit by a person.
manual
A(n) ________ condition refers to any input into a circuit by some moving parts.
mechancial
A(n) ________ condition refers to any input into a circuit from changes in a system.
automatic
when applying the numerical cross-reference system, normally closed contacts are indicated as a number that is
underline
Start pushbuttons are connected in ______ when adding additional start pushbuttons to a standard start/stop motor control circuit.
parallel
Stop pushbuttons are connected in ______ when adding additional stop pushbuttons to a standard start/stop motor control circuit.
series
