Two types of manual speed controllers are used with shunt and cumulative compound motors, above-normal speed controllers and ____ speed controllers.
A)over-and-under
B)above-and-below-normal
C)below-normal
D)normal

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The Answer of Two types of manual speed controllers are used with shunt and cumulative compound motors, above-normal speed controllers and ____ speed controllers.
A)over-and-under
B)above-and-below-normal
C)below-normal
D)normal

Two Types of Manual Speed Controllers Are Used with Shunt