Ch 9

Fuses and circuit breakers are used for ground-fault and short-circuit protection.

• T

• F

A typical overload occurs when the insulation between two wires is broken.

• T

• F

A continuous overload occurs when a motor is driving a load greater than the design load.

• T

• F

Most modern overcurrent protection devices are non-current limiting devices.

• T

• F

Eutectic alloys are installed in the combination starter, safety switch, or fuse panel.

• T

• F

Cartridge fuses are classified according to their performance, operation, and construction characteristics.

• T

• F

Motor circuits are the most common type of circuit that includes low-level overloads.

• T

• F

Overload relays are available in single-, two-, and three-pole configuration.

• T

• F

One of the most common circuit breaker designs combines a magnetic clement with a thermal element.

• T

• F

The current rating of the OCPD is determined by the size and type of conductors, control devices used, and loads connected to the circuit.

• T

• F