ECT3

What type of medium is used to carry light signal?

• Fiber Optic Cable
• Coaxial Cable
• LAN Cable
• Power Cable

What is the standard that specifies electrical safety and fire prevention standards that include fiber optic cables?

• NEC 771
• NEC 710
• NEC 700
• NEC 770

Which fiber optic transmitter emits coherent light?

• Semiconductor LED
• Semiconductor Laser Diode
• Fluorescent tubes
• Tungsten filament lamp

What is the Fiber Optic Cable Colour code for outdoor cables?

• Orange
• Yellow
• Black
• Aqua

Which one of the following is the advantage of optical fiber?

• It is robust.
• It is cheap.
• It is easy to install.
• It is insensitive to electrical interference.

Optical Fiber power measurements are expressed in ___.

• Gigawatts
• Volts
• Decibels
• Amperes

____________ affects both the fiber attenuation and dispersion.

• Refractive index
• Connectors
• Micro-bending
• Splices

Optical time domain reflectometry is also called a ____.

• Backscatter measurement method
• Continuity measurement method
• Reflection measurement method
• Refraction measurement method

What is the most commonly used standard in cabling?

• EIA/TIA 569B.
• EIA/TIA 568B.
• EIA/TIA 567B.
• EIA/TIA 566B.

Macro bending can be detected if

• The loss is the same in both wavelength.
• The loss is zero.
• The loss is lower at longer wavelength.
• The loss is higher at longer wavelength.