BICSI INSTALLER 2: FIBER MODULE QUESTIONS WITH ACCURATE ANSWERS

BICSI INSTALLER 2: FIBER MODULE QUESTIONS WITH ACCURATE ANSWERS Loose tube furcating harness = - ANSWER -- Provides support of 250 micron - Provides stand management - Sizes strand for 900 micron connection Couplers/adapters = - ANSWER -To create a mated pair Aramid yarn = - ANSWER -Protects fibers from stress SC Subscriber connector = - ANSWER -* A keyed, contact, moderate loss, pull and wiggle-proof connector - Beige in multimode - Blue in singlemode Fire stopping ASTM = - ANSWER -American standard test method for test of firestop systems UL 1479 = - ANSWER -Standard for fire test of a through penetration firestops Optical fiber bend radius up to four strands at rest = - ANSWER -25 millimeter 1 inch Optical fiber bend radius up to four strands during pull = - ANSWER 51 millimeter 2 inch Intra building bend radius optical fiber during installation = - ANSWER -15 times the outside cable diameter Inter building bend radius optical fiber during installation = - ANSWER -20 times the outside cable diameter Backbone fiber bend radius at rest = - ANSWER -10 times LC Connecter = - ANSWER -Latching connector End face geometry, three types are = - ANSWER -- Physical contact [PC] - Ultra physical contact [UPC] - Angled polish contact [APC] Field terminations have three types = - ANSWER -- Scribe and cleave - Cleave and secure - Slice on Methods to terminate optical fiber = - ANSWER -- Heat cured epoxy termination - Heat activated adhesive - Ultraviolet [UV] light cured termination - Crimp termination - Cleave and secure - Anaerobic termination Ways to test fiber = - ANSWER -5 ways OFSTP -14/OFSTP -7 are = - ANSWER -Double ended tests for testing installed cable plants Fiber test method 1 = - ANSWER -Cable reference Cable reference = - ANSWER -Does not work with all cable plants When connectors do not match = - ANSWER -Use 2 cable reference Insertion loss - ANSWER -The signal loss resulting from the insertion of component , or link or channel [splice], between a transmitter and receiver [often referred to as a attenuation] = Wavelength = - ANSWER -- Distance between two corresponding points on a wave - Measured in nanometers nm Core = - ANSWER -The center of the optical fiber through which light is transmitted Bracing of wall mounted rack = - ANSWER -Must be supported to the: - Wall - Cable tray - Ladder rack Bandwidth = - ANSWER -A measure of the amount of information on optical fiber is capable of transporting - Described in terms of megahertz - kilometer - Increase length or the wavelength of the light source decreases the bandwidth Modal dispersion = - ANSWER -The temporal speeding of a pulse in a optical waveguide Chromatic dispersion = - ANSWER -Spreading of pulse in a optical cable Buffer = - ANSWER -A protective coating applied directly on the fiber Two primary methods by which the end core is illuminated - ANSWER -- Coaxial, identifying scratches and fine details - Oblique, clean view of core condition and cleanliness Index of refraction = - ANSWER -Increases the speed of light in that medium decreases Two types of optical fiber scopes = - ANSWER -- Direct-view microscope - Video microscope Two types of connection processes for optical fiber connections are = - ANSWER -- Scribe and polish - Cleave and secure Maximum splice loss mechanical of fusion splice = - ANSWER -- Shall not exceed 3dB regardless of the method [ Mechanical or fusion ] - Fusion will be no less than 1dB Frequency - ANSWER -Optical pulses using cycles per second, 1 unit of hertz = 1 cycle per second 4hz = 4 cycles per second Definition of transmission - ANSWER -The movement of information in the form of electrical or optical signals from one point to another through a transport medium Refraction - ANSWER -Bending of the light as it passes from one medium into another MHz - ANSWER -- Quantifies the bandwidth of a cabling system in a frequency range - Information handling capabilities of the medium Megabits - ANSWER -- transmission rate - Number of bits information that can be transported over the medium(vehicles of the highway) Anatomy of a fiber - ANSWER -- Core - Cladding - Coating