Relay Circuit Questions - Job #4
Here are questions about this relay circuit. You may consult the
assignment text, diagram, picture, and lecture. You may also use a
dictionary, theory book, and code book as you feel necessary. This in intended
as a learning experience.
Questions
1. How are the stop buttons wired in this diagram?
2. How are the start buttons wired in this diagram?
3. If the stop buttons are separated by a great distance, how many
operators are needed to stop the "C" coil?
4. If the start buttons are separated by a great distance, how many
operators are needed to start the "C" coil?
5. How should stop buttons be wired if all three must be pressed to stop the
"C" coil? (not this diagram)
6. How should start buttons be wired if all three must be pressed to start
the "C" coil? (not this diagram)
7. If the "C" coil is open, what will the voltage reading be on
the coil when the start button is pressed?
8. If no buttons are pressed, what will the voltage reading be on the coil
when proper voltage is applied to L1 and L2?
9. If the coil is energized, what will the voltage reading be on the coil if
proper voltage is applied to L1 and L2?
10. If a voltage reading is taken across a N.O. start pushbutton when L1 L2
is 120 volts, what will it read?
Click HERE to go to the answers page for this diagram.
When satisfied that you have a complete understanding of this diagram, click
HERE to go on to the next one.
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