Question 1
Which of the following physical media transmits signals using light waves guided through high-purity silica glass or plastic?
Correct Answer:
Optical fiber cable
Question 2
According to the Nyquist sampling theorem, what is the minimum sampling rate required to accurately digitize an analog telephone voice signal bandlimited to 4 kHz?
Correct Answer:
8,000 samples per second (8 kHz)
Question 3
An optical transmitter outputs a signal level of +3 dBm. What is the equivalent optical power in milliwatts (mW)?
Correct Answer:
2.0 mW
Question 4
A single-mode fiber optic link has an attenuation coefficient of 0.35 dB/km at a operating wavelength of 1310 nm. What is the total optical fiber attenuation across a 20 km continuous link?
Correct Answer:
7.0 dB
Question 5
An optical transmitter outputs -3 dBm of power, and the receiver sensitivity limit is -28 dBm. What is the total allowable optical power budget for this link?
Correct Answer:
25 dB
Question 1
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About this Exam

Prepare with the WBBSE Madhyamik Telecom (Vocational) Practice Questions - West Bengal Board Class 10 Secondary Vocational Telecom Examination Exam practice quiz. This question bank includes 100 questions covering optical, fiber, fusion, loss, and splicer. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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WBBSE Madhyamik Telecom (Vocational) Practice Questions - West Bengal Board Class 10 Secondary Vocational Telecom Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on optical, fiber, fusion, loss, and splicer. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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