JATC Fiber Optics 138 Final exam Questions And Answers

_____ light sources have a broad spectrum, suffering more chromatic dispersion than _____ light sources. - ️️- LED - Laser "The reduction in optical power as it passes along a fiber" is known as _____. - ️️- Attenuation "Thin strands of highly transparent glass or plastic that guide light" defines _____. - ️️- Optical fiber A _____ is a hard, sharp tool that scratches the fiber to allow cleaving. - ️️- Scribe A digital camera can see infrared light, so it can be used to determine if there is light present in a fiber. - ️️True A fiber optic inspection microscope can increase the danger of high powered light sources by focusing the light coming out of a fiber into your eye. - ️️True A fiber optic power meter measures absolute power in dBm (dB referenced to 1 mw) and, when used with a light source, can measure insertion loss expressed in dB. - ️️True A visible light source (LED or flashlight) used to visually check fiber continuity and location of faults is called a _____. - ️️- Fiber tracer According to the text, it is recommended that reference test cables be chosen for their _____. - ️️- Low loss An advantage of optical fiber is the fact that it is the most cost effective means of transporting information over long distances. - ️️True An F-P laser light source emits its light from the _____ of the microchip. - ️️- Side At specific wavelengths, _____ occurs a high levels. - ️️- Absorption Before terminating a fiber optic connector, make sure to slide the _____ onto the cable. - ️️- Boot Bright red visible light is produced by a VFL that is safe to look at directly at the end of the fiber. - ️️False Cable plant loss should be estimated during the _____ phase. - ️️- Design Cables tested with an OTDR do not require insertion loss testing with an OLTS. - ️️False