QUIZ 3 - PARAMETERS & MEASUREMENT DEVICES IN FIBER OPTIC SYSTEM

LIGHT IN OPTICAL FIBER SYSTEMS IS GENERALLY INVISIBLE TO HUMAN EYE, BUT MAY BE SEEN USING A DIGITAL CAMERA OR CELL PHONE CAMERA

• TRUE

• FALSE

THE WAVELENGTH OF LIGHT USED IN GLASS OPTICAL FIBER IS IN A REGION OF SPECTRUM CALLED

• ULTRAVIOLET

• INVISIBLE

• INFRARED

• GREEN

OPTICAL POWER METERS ARE CALIBRATED AT DIFFERENT WAVELENGTHS BECAUSE OF THE FOLLOWING REASON, EXCEPT

• THE SENSITIVITY OF DETECTORS IN POWER METERS DEPENDS ON THE WAVELENGTHS

• FIBER OPTIC SYSTEMS OPERATE AT SEVERAL DIFFERENT WAVELENGTHS

• ATTENUATION OF A FIBER OPTIC CABLE PLANT IS DIFFERENT DEPENDING ON WAVELENGTH

• CONNECTOR AND SPLICE LOSS IS DEPENDENT ON WAVELENGTH

WHAT WAVELENGTH SOURCES ARE USED WITH MULTIMODE GLASS OPTICAL FIBERS?

• 650nm

• 1300nm

• 1490nm

• 1550nm

VISUAL FAULT LOCATOR (VFL) IS USED TO LOCATE THE BREAKS OR STRESSED IN SHORT FIBER CABLES

• TRUE

• FALSE

OPTICAL POWER METER BASICALLY IS USED TO IDENTIFY THE FIBER LENGTH & LOCATION OF BREAKS

• TRUE

• FALSE

THIS INSTRUMENT IS USED TO IDENTIFY THE FIBER LENGTH, ATTENUATION OR LOCATION OF SLICES, CONNECTORS, BREAKS, ETC ...

• VFL

• OTDR

• POWER METER

• OLTS

VISUAL FIBER TRACER IS USED TO IDENTIFY THE CONTINUITY OR POLARITY OF MULTIMODE FIBER

• TRUE

• FALSE

OPTICAL FIBER ATTENUATION COEFFICIENT IS MEASURED IN

• dB

• dBm

• dB/km

• MHz

TO MEASURE THE OPTICAL POWER LEVEL IN A FIBER OPTIC NETWORK, THE METER MUST BE SET TO READ __________

• dB

• dB AT PROPER FREQUENCY

• dBm AT PROPER WAVELENGTH

• dB/km AT ANY WAVELENGTH