Optical Fibers Engineering Quiz

What is the principle behind the propagation of light in optical fibers?

• Absorption of light

• Total internal reflection

• Scattering of light

• Refraction of light

Which type of optical fiber is most commonly used for long-distance communication?

• Single-mode optical fiber

• Copper wire

• Multi-mode optical fiber

• Plastic optical fiber

What is the function of a fiber optic communication system?

• Transmitting data using magnetic fields through coaxial cables

• Transmitting data using sound waves through copper wires

• Transmitting data using light pulses through optical fibers

• Transmitting data using radio waves through satellite communication

Which type of optical fiber is suitable for sensing applications due to its flexibility and small size?

• Single-mode optical fiber

• Step-index optical fiber

• Multi-mode optical fiber

• Plastic optical fiber

What is the purpose of optical fiber splicing?

• To separate optical fibers

• To convert optical signals to electrical signals

• To amplify the signal in optical fibers

• To join two optical fibers together

Which type of optical fiber has a larger core diameter, allowing multiple modes of light to propagate?

• Single mode fiber

• Plastic optical fiber

• Multimode fiber

• Step index fiber

What is the refractive index profile of a step-index optical fiber?

• Core with no refractive index and cladding with a higher refractive index

• Core with a variable refractive index and cladding with a higher refractive index

• Core with a lower refractive index and cladding with a higher refractive index

• Core with a constant refractive index and cladding with a lower refractive index

Which material is commonly used for the core of an optical fiber?

• glass or plastic

• Rubber

• Wood

• Metal

What is the typical diameter of an optical fiber core?

• 20 micrometers

• 15 micrometers

• 9 micrometers

• 5 micrometers

Which type of optical fiber is more susceptible to modal dispersion?

• Single mode fiber

• Plastic optical fiber

• Step index fiber

• Multimode fiber