Communications and Fiber Optics

Virginia Balitski, Magna IV Engineering Columns, Summer 2023 Columns, Tech Quiz

Communication is vital in everything we do, and it isn’t just the funny phrases at the end of the telephone game as kids. As NETA Certified Technicians, we must be familiar with different communication systems since they are essential to proper power system operation. In this quiz, we discuss some communication systems and associated components. 

  1. Which of these is a control system that involves computers, data communication, and data acquisition and is used to monitor and control equipment?
    • a. PLC 
    • b. SCADA 
    • c. RTU
    • d. HMI 
  2. The time needed to transport information from a sender to a receiver in a communication network is known as:
    • a. Attenuation
    • b. Direct transfer tripping
    • c. Baud rate
    • d. Latency 
  3. Which of the following relaying schemes uses a communication network between relays to transmit information from one end of a transmission line to another?
    • a. Pilot wire 
    • b. Annunciator 
    • c. Permissive control 
    • d. Reversing device 
  4. One of the advantages fiber optic cables have over copper cables is:
    • a. Fiber optic cables are resistant to damage during installation.
    • b. Fiber optics cables have varying baud rates.
    • c. Fiber optic cables can be used over long distances.
    • d. Fiber optic cables have a lower cost.
  5. Which of the following tests is required in the ANSI/NETA MTS-2023, 7.25 Fiber-Optic Cables section?
    • a. Perform cable length measurements. 
    • b. Perform connector and splice integrity test using an optical time domain reflectometer.
    • c. Measure cable attenuation loss with an optical power loss test set.
    • d. Perform transit and receive power readings from a local device and a remote device. 
  6. Signal losses in fiber optic cable occur due to:
    • a. Splices
    • b. Connectors
    • c. Contaminants 
    • d. All of the above   

Virginia Balitski, CET, Manager – Training and Development, has worked for Magna IV Engineering since 2006. Virginia started her career as a Field Service Technologist and achieved a NETA Level 4 Senior Technician certification. She has since dedicated her time to the advancement of training and safety in the electrical industry. She is a Certified Engineering Technologist through ASET – The Association of Science & Engineering Technology Professionals of Alberta. Virginia is the current Vice-Chair of CSA Z462, Workplace Electrical Safety, and is a member of NFPA 70E, Electrical Safety in the Workplace Technical Committee. She serves on NETA’s Board of Directors, is involved with many NETA committees, and represents NETA on the ASTM F18 committee.