Quiz  /  Fiber Optics Gate & PSU MCQ Questions With Answers

  • 1. 
    Single mode fiber is

  • one mode
  • two mode
  • more than one mode
  • none

  • 2. 
    Example for passive sensor

  • Displacement sensor
  • Temperature sensor
  • Pressure sensor
  • None

  • 3. 
    Step index multi mode fiber has

  • core diameter has 50 to 200 µm
  • core diameter has 100 to 200 µm
  • core diameter has 50 to 100 µm
  • core diameter has 50 to 150 µm

  • 4. 
    A light wave acting as a carrier wave is capable of carrying

  • less information
  • more information
  • medium information
  • No information

  • 5. 
    The refractive index of core and cladding for a step index fibre are 1.42 and 1.29 respectively. The numerical aperature of the fibre is

  • 0.3523
  • 0.59
  • 0.13
  • 2.71

  • 6. 
    Physical parameters are sensed directly is

  • Active sensor
  • Intrinsic sensor
  • Passive sensor
  • Both 1 and 2

  • 7. 
    A fiber optic adapter also called _________________ is designed to connect two fiber optic cables together.

  • Couplers
  • Copper Adapters
  • Cable Joins
  • Cable Ties

  • 8. 
    If the numerical aperature of an optical fibre is 0.515, then the maximum angle of incidence is __________ degree.

  • 0.008
  • 17.5
  • 31
  • 67

  • 9. 
    What are the types of optical fiber?

  • Material
  • Number of modes
  • Refractive index profile
  • All the above
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