Fechar
A(n) ___ is a subatomic particle that has a positive electrical charge of one unit
___ current is current that reverses its direction of flow at regular intervals.
Current is measured in ___.
___ is the amount of electrical pressure that causes electrons to move in a circuit.
T or F
Three-phase circuits do not always require a neutral wire.
T or F
The larger the AWG number, the larger the diameter of the wire.
T or F
All points in a DC circuit have polarity.
T or F
in a step-up transformer, the secondary coil has more turns of wire then the primary coil.
A(n) ___ is a device that automatically opens a circuit to prevent damage from a high_current condition.
A(n) ___ is the conducting part of a switch that operates with another conducting part to complete (close) or break (open) circuit.
A ___ is an OCPD with a fusible link that melts and opens the circuit when an overload condition or short circuit occurs.
Contact fails when they ___.
A(n) ___ is an electrical switch that is actuated by a separate circuit.
T or F
All lamp ballasts produce some noise.
T or F
Overheating is the most common cause of motor failure.
A(n) ___circuit is a circuit having an incomplete path, which prevents current flow.
___ is the opposition to the flow of electrons.
A(n) ___ switch is a switch that is operated by a person.
A(n) ___ drawing contains building information in the form of floor plans, elevation views, section drawings, and detail drawings.
A(n) ___ is a material that has little resistance and permits electrons to move through it easily.
A(n) ___ is the smallest building block of matter that cannot be divided into a smaller unit without changing the basic character.
A(n) ___ is a subatomic particle that has a negative electrical charge of unit.
___ is the flow of electrons through a conductor.
___ is the positive or negative state of an object.
