Fiber Optic Installer Practice Exam

These questions are part of the practice quiz. Start practicing

• Which of the following will NOT confirm fiber continuity over short distances?
• Why is single-mode fiber preferred for long-distance transmission?
• Which light source is typically used for single-mode fiber testing?
• What does "OFNR" stand for in fiber optic terminology?
• What kind of cable kit branches the fibers contained in a loose tube fiber optic cable into 900 micron outside diameter protective tubes?
• What is the significance of the mode field diameter in single-mode fiber?
• What type of loss can be greatly reduced by using an optically transparent index-matching gel?
• Which material is commonly used for fiber optic cables?
• What is a benefit of using sealed closures in fiber optic installations?
• What does the ISO/IEC 11801 specification refer to?
• What does OTDR stand for?
• What type of environment is best for installing multi-mode fiber?
• Why is fiber optic cleaner used?
• How should fiber optic cables be stored to prevent damage?
• What is an MPO connector used for?
• Which type of connector is commonly used in single-mode applications due to its ability to maintain low loss?
• How is a splice closure used?
• Single-mode fiber optic systems typically use ________ light sources.
• Which aspect of fiber optic technology allows for high-density connectivity?
• At what core diameter do multimode fibers typically operate?
• What is an advantage of using optical fiber over copper cables?
• Which tool is essential for measuring the attenuation of fiber cables over long distances?
• Physical Contact (PC) or Angled Physical Contact (APC) ferrule finishes significantly reduce what in connectors?
• What is the core of a fiber optic cable?
• One way to reduce modal dispersion is to?
• What is the typical coating diameter for a fiber used in tight-buffered cables?
• Why is training and certification critical for fiber optic installers?
• When light passes from one transparent medium to another transparent medium that has a different refractive index, the light wave bends. This is called __________.
• Which termination technique depends on the quality of the cleaving tool for optimum performance?
• What safety measure should be taken when working with fiber optic cables?
• The loss resulting from mated fiber ends that are not perpendicular to the fiber's axis is an example of _________ loss.
• Which termination method uses heat to secure the fiber optic connectors?
• How can fiber optic cables be installed in underground environments?
• What are OM3 and OM4 multimode fibers commonly referred to as?
• How does single-mode fiber differ from multi-mode fiber?
• What type of equipment is commonly used to splice fiber optic cables?
• Which of the following are the two main types of fiber optic cables?
• What does "cross-talk" refer to in the context of fiber optics?
• Fiber optic transmission takes place in what portion of the spectrum?
• If the cable has metallic members, what does the NEC require at termination points?
• The number of modes in an optical fiber increases as the _______ decreases.
• What tools are essential for a fiber optic installer?
• What is the purpose of using a launch cable during testing of fiber optics?
• What is the main advantage of using fiber optic cables over copper cables?
• When terminating a fiber optic cable, which connector type might be commonly used?
• Which type of fiber optic connector is known for its high precision and low loss?
• What is the recommended action if a fiber optic cable is damaged during installation?
• Which of the following is a benefit of using fiber optics?
• Installers must consider which of the following when installing fiber optic cables:
• Which of the following wavelengths is not commonly used for fiber optic communications?
• Multimode fiber optic transmitters typically use low-cost _____ _____ light sources.
• What is the typical color for commercial multimode cordage?
• Which of the following types of test equipment requires periodic and traceable calibration?
• Name a commonly used connector type in fiber optics.
• What is the primary purpose of a uniform buffer in a fiber optic cable?
• Which type of light source is commonly used in fiber optic transmissions?
• Why is signal loss important in fiber optics?
• What safety forms must be available when chemicals are used?
• What does the acronym MSDS stand for in the context of chemical safety?
• What does "fiber management" refer to?
• What does "splice" mean in fiber optics?
• Which color cordage is used to signify single-mode fiber?
• Different wavelengths of light travel at _____ speed through the glass.
• In the NEC article 770, it states that unlisted cable shall extend no more than how many feet inside the structure before transitioning to listed cables?
• The Telcordia general recommendation GR-326 CORE specification recommends that fiber optic connectors have a repeatability value that should not exceed which value?
• What should be avoided to ensure the longevity of installed fiber optic cables?
• What can lead to high splice loss in fiber optics?
• According to the NEC®, what type of cable contains both optical fibers and current-carrying electrical conductors?
• In what year was the first North American fiber-optic telephone system, carrying commercial telephone traffic, installed?
• What is dispersion in fiber optics?
• Which color code represents the largest gauge multimode fibers?
• What does 'NEC' stand for?
• Single-mode fiber optic has a _____ core than multimode fiber optic.
• The NEC® is updated every ________ years.
• Which material is commonly used to manufacture the core of optical fibers?
• In a typical cross-section of single-mode fiber, which number represents the cladding?
• At which wavelength does optical fiber have the lowest attenuation?
• What are the two most common multimode optical fiber types?
• What does the term “core” refer to in fiber optics?
• Which of the following is not required with cable management products?
• What does it mean for a fiber optic cable to be "terminated"?
• What does the term "fiber core" refer to?
• In fiber optic installations, what factor can significantly impair data integrity?
• What is the purpose of an optical power meter?
• Which type of fiber optic cable is better for high-bandwidth applications?
• What characteristic is ideal for optical fiber in terms of light transmission?
• What is a fiber optic loopback?
• What are the three most common wavelength bands used for communications through optical fibers?
• Which component of a fiber-optic system is responsible for converting optical signals back to electrical signals?
• During a fiber installation, what is the risk of fiber ends being left unprotected?
• What should be done to prevent fiber optic cables from excessive bending during installation?
• What is a common consequence of polarity reversal in fiber optics?
• What type of light is typically used in multi-mode fiber optics?
• All connections should be _____ prior to testing.
• Which connector is known for its low loss characteristics and is mentioned in the ANSI/TIA-568-C.3 standard?
• Why is cleaning fiber optic connectors important?
• In fiber optic installations, what is a recommended practice for maintaining cable integrity?
• Most single-mode fiber ends are terminated onto factory-made _________ and spliced to the fiber cable.
• What effect does bending a fiber optic cable have on signal transmission?
• What is the primary light propagation mode in a single-mode fiber?
• What is the primary purpose of connectors in a fiber optic system?
• What is the primary purpose of using a patch panel in a fiber optic network?
• What does "polarity reversal" refer to in fiber optics?
• Most small form factor connectors use what ferrule diameter?
• What is the most important requirement for making a good splice?
• What is the primary purpose of a fiber optic cable?
• What does the NEC® consider if a fiber-optic cable has a metallic strength member?
• What are the three most common wavelength windows used for communications through optical fibers?
• Why is it important to maintain low attenuation in fiber optic systems?
• What is the typical attenuation value for multi-mode fiber?
• What is the typical attenuation value for single-mode fiber?
• Which type of optical fiber is primarily used for long-distance communication?
• What are the two most common multimode wavelengths?
• When installing cable, it is recommended that _______ be available for future changes and restorations.
• How is a fiber optic cable typically terminated?
• This product is mostly used in outside plant applications for splicing and routing of optical cables.
• What are the effects of temperature on fiber optic cables?
• What type of light does a Laser Diode emit?
• Which component primarily protects fiber optic cables from physical damage?
• What instrument is used for testing of fiber spans and includes loss per kilometer and a total distance of span measurements?
• What should be the temperature of the environment during the fiber splicing process?
• What is a connector in fiber optics?
• Which of the following tools would you use to cut fiber optic cables?
• When visually inspecting the end face of a connector with an inspection microscope, where are minor defects allowed?
• Single-mode systems usually operate at what wavelengths?
• What is the "cut-off wavelength" in fiber optics?
• What should the technician verify before beginning a fiber optic installation?
• What optical effect is produced by all mechanical interconnections, whether mechanical splices or mated connector pairs?
• What factor plays a significant role in selecting the type of fiber for a specific installation?
• What is a fusion splicer used for?
• What term describes the optical fibers designed for use with LED light sources such as OM1 and OM2?
• What is the best way to dispose of waste fiber ends?
• If the bend radius of a cable is not known, what is the generally accepted dynamic bend radius?
• Light sources used to test multimode Local Area Networks (LANs) normally use what type of electro-optical component?
• What effect does improper bending of an optical fiber have on its tensile strength?
• According to the Optical Fiber Cabling Components Standard, what is the maximum insertion loss for a mated connector pair?
• What absolute power value is Zero dBm referenced to?
• What is the term for the process of removing the outer coating of a fiber optic cable?
• What is a typical numerical aperture (NA) for a 50/125 μm optical fiber?
• In ANSI/TIA-598-C, which colors represent fibers 1, 2, 6, and 11?
• What class of Laser has the lowest power and the fewest hazards associated with it?
• What is a fiber optic patch panel?
• Why is it important to test fiber optic cables after installation?
• What is the primary function of a fiber-optic transmitter?
• What is the refractive index?
• What type of connector is commonly used for high-performance fiber optic connections?
• What does DBO mean in the context of fiber optics?
• Which factor is NOT a major influence on optical fiber performance?
• Precision fiber connector ferrules are mostly made out of what material?
• Which fiber-optic cable type reduces modal dispersion through its design?
• How does environmental temperature affect fiber optic cables?
• Which of the following is a common application for single-mode fiber?
• Absolute power in optical fiber is specified as:
• What type of light source is commonly used for multi-mode fiber testing?
• What type of connector is recognized in the ANSI/TIA-568-C.3 standard that offers high performance for applications?
• What role does cladding play in a fiber optic cable?
• OM1 and OM2 fibers are generically known as what type of fibers?
• Graded index fiber uses multiple layers of glass to reduce which type of dispersion?
• In the assembly process of optical fibers, which component of the connector is the cladding typically bonded to?
• What is the primary purpose of an Optical Power Meter?
• What type of cable does the NEC® define as fire retardant and low smoke?
• What do most fiber optic cables use to protect the fibers from environmental factors?
• What practice minimizes water intrusion during installation?
• Which part of the multimode optical fiber has the lowest refractive index?
• What safety measures should be taken when installing fiber optics?
• What is the approximate bend radius for fiber optic cables?
• What is the importance of documenting a fiber optic installation?
• What does "polarity" refer to in fiber optic cabling?
• What is the primary function of an OTDR?
• What is the result of poor mode coupling in multi-mode fibers?
• What is mode coupling in fiber optics?
• What does the term "mode" refer to in optical fiber?
• During the installation process, what is the role of the splice tray?
• What is the term used for indoor tight-buffered "non-breakout" style cable?
• What does a simple fiber-optic system consist of?
• What is attenuation in fiber optics?
• What is the role of the cable jacket in fiber optic installations?
• What is the primary purpose of using index-matching gel in fiber optic applications?
• In fiber optic installations, what is the common effect of microbending?
• What is the primary function of a fiber optic distribution frame?
• What instrument is used for the visual inspection of fiber optic end-faces?
• What is attenuation (loss) specified as?
• Why should sharp bends be avoided in fiber optic cables?
• What does the term 'attenuation' refer to in fiber optics?
• Which article of the NEC requires that any electrically conductive materials that are likely to become energized shall be bonded and grounded at the point of entrance into a building?
• What is a common use of a Visual Fault Locator?
• What pattern of polishing is generally used with hand polishing techniques to minimize surface scratches?
• What type of fiber-optic cable does the NEC® classify as having non-current carrying conducting members?
• What is the effect of increasing the core diameter in multimode fibers?
• What is the main purpose of a fiber optic interconnect?
• What does the gel, tape, or powder in a loose tube/buffered fiber optic cable primarily protect the optical fiber from?
• What is a common cause of signal loss in fiber optic systems?
• What is one characteristic of multimode fiber compared to single-mode fiber?
• The splicing environment must be kept as _____ as possible.
• Which factor is crucial when terminating fiber optic cables?
• A panel used to provide a central location for cross-connecting, monitoring or testing fiber is a:
• What is one advantage of multi-mode fiber?
• What is the primary benefit of using fiber optics over copper wiring?