1. A hand-off automatic switch may be a stand alone control or incorporated into a start-stop push button station.
a. True
b. False
2. A C on an HOA switch indicates that the contacts are closed and the O indicates that they are open.
a. True
b. False
3. Selector switches often contain multiple sets of contacts.
a. True
b. False
4. Selector push buttons cannot combine the operation of a selector switch and push button in the same unit.
a. True
b. False
5. If the HOA switch is set in the off position, ____ current can flow to the coil of the starter.
a. precalibrated b. continuous
c. only emergency d. no
Name: Class: Date:
Unit 19 Hand-Off Automatic Controls
6. If set in the ____ position, the coil is connected directly to the power line and the motor will run continuously.
a. auto b. on
c. hand d. off
7. When the switch is set in the hand position, contacts 1 and 2 are closed, and contacts 3 and 4 are ____.
a. in auto position b. open
c. disconnected d. also closed
8. The selector switch is controlled by ____ the push button sleeve.
a. turning b. pushing
c. flipping a lever on d. pulling
Name: Class: Date:
Unit 19 Hand-Off Automatic Controls