Instrumentation Transducers Questions and Answers – Fibre Optic Sensors

This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Fibre Optic Sensors”.

1. OTDR stands for _______________
a) Optical time domain reflectometer
b) Optical transfer data rate
c) Optical time data registers
d) None of the mentioned
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2. Which of the following is not correct for fibre optic sensors?
a) Immune to electro magnetic interference
b) Immune to radiation hazard
c) Can be used in harsh environments
d) None of the mentioned
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3. Fluoride glass is used with __________
a) IR waves
b) UV rays
c) Normal light
d) All of the mentioned
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4. Silica glass of hydroxyl concentration can be used for ___________ of wavelength.
a) 100 nm to 250 nm
b) 250 nm to 800 nm
c) 800 nm to 1500 nm
d) 100 nm to 3400 nm
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5. General spectral range for silica glass is _______________
a) Less than 200 nm
b) Between 200 nm to 2200 nm
c) Between 2000 nm to 5000 nm
d) Greater than 3000 nm
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6. Epoxy material in fibre optics is intended for ________________
a) Better optical properties
b) Better reflection
c) Better sealing
d) Reducing noise
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7. Plastics optical cables can be used for ________________
a) Short range
b) Medium range of distance
c) Long range of distance
d) Very high range of distance
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8. Which of the following represents loss associated with glass fibres?
a) 3 dB/Km
b) 10 dB/Km
c) 0 dB/Km
d) 50 dB/Km
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9. Loss associated with plastic fibre is less than glass fibres.
a) True
b) False
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10. Cladding in glass fibre have high refractive index than the core.
a) True
b) False
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Sanfoundry Global Education & Learning Series – Instrumentation Transducers.

To practice all areas of Instrumentation Transducers, here is complete set of 1000+ Multiple Choice Questions and Answers.