1. The conventional three-wire, push-button control circuit may be extended by the addition of one or more push-button
control stations.
a. True
b. False
2. The operation of each additional push-button control station is different from that of the single push-button control in
the basic three-wire circuit.
a. True
b. False
3. Pressing any stop button de-energizes the coil.
a. True
b. False
4. An electrician in the field must connect a circuit using a line diagram.
a. True
b. False
5. The motor may be started or stopped from a number of separate stations by connecting all start buttons in parallel and
____ stop buttons in series.
a. two b. three
c. some d. all
Name: Class: Date:
Unit 20 Multiple Push-Button Stations
6. When a motor must be started and stopped from more than one location, ____.
a. any number of start and stop buttons may be connected
b. the number of start and stop buttons that may be connected varies with its size
c. the number of start and stop buttons that may be connected varies with its rating
d. two to four start and stop buttons may be connected
7. Multiple push-button stations are used to control conveyor motors ____.
a. on industrial refrigerating installations
b. on large shipping and receiving freight docks
c. on FCC towers in oil refineries
d. on vacuum towers in oil refineries
8. Whencomponentsareusedtoperformthefunctionofstop,theyaregenerallywired____withthemotorstartercoil.​
a. ​normallyopenandconnectedinseries b. ​normallyclosedandconnectedinseries
c. ​normallyclosedandconnectedinparallel d. ​normallyopenandconnectedinparallel
Name: Class: Date:
Unit 20 Multiple Push-Button Stations