Optical Study guides, Class notes & Summaries

NCTI Final Exam Maintance Tech 2-3 Conventional| New Update 2023/ 2024| Verified Questions and ANSWERs In a hybrid fiber/coax HFC fiber optic node, what are common voltages produced by DC power supplies? - ANSWER Common Voltage includes +5, +12 and +24 VDC Why do many optical nodes accept two independent power supplies? - ANSWER For redundant Powering of the node. What is an o...

B - - - - A third 90-degree bend may be permitted in a conduit run if the run does NOT exceed ______? A 5 m (16.5') B 10 m (33') C 15 m (50') D 30 m (100') C - - - - Which of the following is a property of an electromagnetic field built around a conductor that opposes any changes in current flow in a circuit? A Impedance B Capacitance C Inductance D Resistance A - - - - Which of the following markings is used for non-conductive optical fiber general-purpose cables? A OFNG B OF...

buffer tubes - A flexible cylindrical structure that houses, compartmentalizes, and protects smaller groups of optical fibers within larger multi-fiber cables. pigtails - A length of optical fiber with a connector at only one end, which may be spliced to a smaller diameter optical fiber for testing or termination. acceptance testing - Length and loss test of fiber-optic cable that is typically performed twice—when the cable is received from the manufacturer and after the cable is i...

Progression: Construction Coordinator I - II Exam Answered Correctly. A chain trencher A return path sweep-and-alignment system is used to adjust which of the following? Anomalies, such as echoes and blind spots, can hide cable faults or cause a technician to misinterpret the signature of a time domain reflectometer (TDR) waveform. What causes an echo on a waveform TDR? As the RF signal travels on the coaxial cable, one portion of the signal may be attenuated more than the others. ...

1. B: A third 90-degree bend may be permitted in a conduit run if the run does NOT exceed ? A 5 m (16.5') B 10 m (33') C 15 m (50') D 30 m (100') 2. C: Which of the following is a property of an electromagnetic field built around a conductor that opposes any changes in current flow in a circuit? A Impedance B Capacitance C Inductance D Resistance 3. A: Which of the following markings is used for non-conductive optical fiber gen- eral-purpose cables? A OFNG B OFCR C OFCP D OFNP 4. A:...

FOA CFOT Certification Exam v11 Questions and Answers (100% Correct). A fiber optic inspection microscope can increase the danger of high powered light sources by focusing the light coming out of a fiber into your eye. True or False? - ANSWER-True A fiber optic power meter measures absolute power in dBM (dB referenced to 1 mw) and, when used with a light source, can measure insertion loss expressed in dB. True or False? - ANSWER-True When we say 62.5/125 fiber, what does "62.5" mean? -...

California Law Exam Optometry | 2024/2025 | Questions and Verified Answers| 100% Correct| Grade A Q: True/False: an optometrist can lease a space from an optician or health plan Answer: True Q: True/False: an optometrist can be employed by an optician Answer: false Q: True/False: if an OD leases a space from an optician or health plan the lease cannot be less than one year and cannot be terminated for a reason that interferes with the practice of optometry Ans...

Final Exam - Requires Respondus LockDown Browser + Webcam Due No due date Points 120 Questions 30 Time Limit 90 Minutes Requires Respondus LockDown Browser Instructions The Final Exam is compos ed of questions based upon material presented in the entire course. It will assess your level of mastery of the course content and goals. The format of the exam is similar to past module exams. You are about to begin a timed exam. Please make sure you are in a suitable, quiet place, free from distraction....

A patient has recurrent cluster headaches and asks about abortive therapy. Which therapy is effective for a majority of patients with cluster headaches? a. Lithium b. NSAIDs c. Oxygen d. Verapamil - Answer- C. Oxygen A patient reports recurrent headaches occurring 1 or 2 times per month that generally occur with weather changes or when sleep patterns are disrupted and describes them as severe, with throbbing on one side of the head and sometimes accompanied by nausea. What is the recommen...