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22 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Symbols for electrical devices may not always resemble the real thing?
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True
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WHAT DOES THE HEAVIER LINES REPRESENT?
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High-Current Power Circuit conductors
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The heavy lines are used for the Higher-Current power circuit or conductors.
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WHAT DOES THE LIGHTER LINES REPRESENT?
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Lower-current control circuit conductors
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Step down conductors
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CONDUCTORS THAT MAKE CONTACT ARE REPRESENTED BY WHAT?
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Dot.
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Conductors that make contact are represented by a dot at the junction.
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LADDER DIAGRAMS
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focuses on the electrical operation of a circuit, not the physical location of a device.
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Ladder diagrams gives the necessary information for the easily following the sequence of operation of the circuit.
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LOAD
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A circuit component that has resistance and consumes electrical power supplied from L1 and L2.
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Control coils, solenoids, horns, and pilot lights.
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WHAT MUST BE INCLUDED IN THE RUNGS OF A LADDER DIAGRAM?
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At least one LOAD
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RAILS
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The vertical lines connect to the source and are identified as line 1 (L1) and line 2 (L2)
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L1 L2
l l l ----------------------- l |
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RUNGS
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The horizontal lines are connected across L1 and L2 and contain the control circuitry.
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RUNGS l---------------l
RUNGS l---------------l |
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DEVICES THAT START A LOAD ARE CONNECTED?
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In Parallel
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DEVICES THAT STOP A LOAD ARE CONNECTED?
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In Series
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MORE THAN ONE ELECTRICAL LOAD IS CONNECTED IN?
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Parallel
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They need to draw the same amount of Voltage.
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TRUE OR FALSE
Symbols for electrical devices may not always resemble the real thing |
TRUE
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TRUE OR FALSE
In a ladder diagram components are arranged according to their physical position in the installation |
FALSE
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TRUE OR FALSE
The conductors feeding current to a large motor would be considered to be part of the control circuit |
FALSE
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TRUE OR FALSE
All electrical components are normally drawn in their off-state or De-activated position. |
TRUE
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TRUE OR FALSE
When more than one electrical load is connected in a rung of a ladder diagram, the loads are normally connected in series |
FALSE
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TRUE OR FALSE
A pressure switch would be classified as a load |
FALSE
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TRUE OR FALSE
A fuse is never placed on the grounded side of the circuit |
TRUE
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TRUE OR FALSE
The single-line diagram uses blocks along with a single-line to show all the major components of a system |
FALSE
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TRUE OR FALSE
A conduit layout diagram normally does not include the number and size of wires to be run in the conduit. |
TRUE
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TRUE OR FALSE
No wires or components are normally shown on block diagrams. |
TRUE
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