Spectrum Field Tech Questions and Answers Latest Update 2024 (100% Verified)

Spectrum Field Tech Questions and Answers Latest Update 2024 (100% Verified). Current/ amperage Flow or movement of electric charges Resistor a passive two-terminal material that impedes the flow of current What is the most common workplace hazard involving electricity? Electrical shocks What is minimum approach distance? The shortest safe distance to keep from energized conductors CATV at the pole 40'' CATV at the mid-span 24'' CATV at the house 12'' Spectrum Field Tech Questions and Answers Latest 2023/2024 (100% Pass) Live parts of electric equipment must be guarded against at how many volts? 50 volts What are the 2 kinds of grounds required by Safety standards for electrical systems? Service and Equipment What are circuit protection devices designed to do? 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 Occupational Safety and Health Administration CATV Community Antenna Television HFC Hybrid Fiber Coax What are the four sources of signals? Satellite, local origination, off air, fiber optics Forward 54 MHz-1 GHz G.B. Guard Band Return 5-42 MHz Downstream (forward path) Forward signal from the headend to a customer Upstream (reverse path) Return signal from a customer to the headend Signal frequency 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? Audio Infrasonic frequencies are below what? Audio How many hertz can the human ear hear? 20-20,000 Per NTSC requirements, what is a tv channels bandwidth? 6MHz FCC (Federal Communications Commission) Gov agency responsible or regulating and assigning frequencies throughout the US HFC distributes what? Broadband signals through a network of various elements Nodes Convert the light signals from the headend into radio frequency signals for delivery to customer