1. Small DC motors can be connected directly across the line for starting.
a. True
b. False
2. Magnetic across-the-line control of small DC motors is very different from AC control.
a. True
b. False
3. DC arcs are greater than those due to AC.
a. True
b. False
4. Fractional horsepower manual starters or magnetic contactors and starters are used for across-the-line starting of
____ motors.
a. large DC b. small DC
c. large AC d. small AC
5. Some DC across-the-line starter coils have ____ windings.
a. dual b. no
c. multiple d. plain
Name: Class: Date:
Unit 45 Across-the-Line Starting
6. In one of the control methods to start a DC motor, a current-limiting resistor is provided to prevent coil ____.
a. de energization b. energization
c. burnout d. disconnection
Name: Class: Date:
Unit 45 Across-the-Line Starting