Exam Coverage
Exam coverage for the Arizona Contractor License CR-67 - Low
Voltage Communication Systems includes the technical knowledge,
business practices, safety requirements, and Arizona contractor
regulations applicable to contractors performing low-voltage
communication systems work. The Arizona Registrar of Contractors
identifies CR-67 as the dual commercial/residential classification
covering the scopes of both C-67 Low Voltage Communication
Systems and R-67 Low Voltage Communication Systems
,The frequency of AC is measured in?
Measured in hertz Hz
What refers to a voltage can convey information?
Electrical Signal
,What refers to the maximum voltage that can be reached by a
signal?
Amplitude
Electricity may flow only when?
There has to be a for it to return making a complete circuit
, Alternating Current (AC) always flows one way then the other?
True. AC always flows one way then the other.
What is the return path for electrical power to flow back to the
service panel?
Neutral
The live wire is always ungrounded?
True. They are very hot caring electrical power