Spectrum Field Tech Exam Questions with Correct Answers

Spectrum Field Tech Exam Questions with Correct Answers Current/ amperage - Answer-Flow or movement of electric charges Resistor - Answer-a passive two-terminal material that impedes the flow of current What is the most common workplace hazard involving electricity? - Answer-Electrical shocks What is minimum approach distance? - Answer-The shortest safe distance to keep from energized conductors CATV at the pole - Answer-40'' CATV at the mid-span - Answer-24'' CATV at the house - Answer-12'' Live parts of electric equipment must be guarded against at how many volts? - Answer50 volts What are the 2 kinds of grounds required by Safety standards for electrical systems? - Answer-Service and Equipment What are circuit protection devices designed to do? - Answer-Automatically limit or shift off the flow of electricity in the event of a ground fault, overload, or short circuit in the wiring system OSHA - Answer-Occupational Safety and Health Administration CATV - Answer-Community Antenna Television HFC - Answer-Hybrid Fiber Coax What are the four sources of signals? - Answer-Satellite, local origination, off air, fiber optics Forward - Answer-54 MHz-1 GHz G.B. - Answer-Guard Band Return - Answer-5-42 MHz Downstream (forward path) - Answer-Forward signal from the headend to a customer Upstream (reverse path) - Answer-Return signal from a customer to the headend Signal frequency - Answer-Number of times that an RF signal completes a cycle from a positive value to a negative value and back in one second Ultrasonic frequencies are higher than what? - Answer-Audio Infrasonic frequencies are below what? - Answer-Audio How many hertz can the human ear hear? - Answer-20-20,000