Which of the following is NOT a standard type of electrical power?

Which of the following is NOT a standard type of electrical power?

• A. Direct current (DC)
• B. Alternating current (AC)
• C. Cycle current (CC)
• D. Direct current and alternating current (DC/AC)

Answer: (C)

In electrical power terminology, the standard categories are direct current and alternating current. Direct current flows in one direction, while alternating current periodically reverses direction, and many devices are designed to work with either one or with both via power electronics (DC/AC). The term cycle current isn’t a recognized category for standard power types; it doesn’t define a distinct form of power in codes or practice. So, while direct current and alternating current are established types, and some equipment is described as capable of both (DC/AC), cycle current is not a standard power type.

In electrical power terminology, the standard categories are direct current and alternating current. Direct current flows in one direction, while alternating current periodically reverses direction, and many devices are designed to work with either one or with both via power electronics (DC/AC). The term cycle current isn’t a recognized category for standard power types; it doesn’t define a distinct form of power in codes or practice. So, while direct current and alternating current are established types, and some equipment is described as capable of both (DC/AC), cycle current is not a standard power type.