Oklahoma Cctv (Closed Circuit Television) Practice Test

85 Questions | Total Attempts: 724

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Television Quizzes & Trivia

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Questions and Answers
  • 1. 
    In reference to cabling, UTP means:
    • A. 

      Universal twisted plenum

    • B. 

      Unshielded twisted pair

    • C. 

      Unshielded twisted plenum

    • D. 

      Universal twisted pair

  • 2. 
    According to NFPA 70, what determines the type of insulation used on conductors in an installation? 
    • A. 

      Length of conductor run

    • B. 

      Type of raceway

    • C. 

      Environment

    • D. 

      Current of the circuit

  • 3. 
    What feature helps improve picture quality when aiming cameras towards brightly lit areas?
    • A. 

      Manual iris

    • B. 

      Backlight compensation

    • C. 

      IR illumination

    • D. 

      Electric iris

  • 4. 
    The term CIF refers to: 
    • A. 

      A common bandwidth requirement

    • B. 

      A common resolution

    • C. 

      The light output of a camera

    • D. 

      The grey scale of an image

  • 5. 
    A characteristic of direct current is that it:
    • A. 

      Cannot be stored

    • B. 

      Changes polarity

    • C. 

      Has a constant polarity

    • D. 

      Is produced by a transformer

  • 6. 
    What crime is committed by a technician or salesperson who falsifies a customer’s signature or adds content to a document that has already been signed?
    • A. 

      Fraud

    • B. 

      Larceny

    • C. 

      Indigent interference

    • D. 

      Invasion of privacy

  • 7. 
    What does CCD stand for?
    • A. 

      Compressed Capture Device

    • B. 

      Charged Compressed Device

    • C. 

      Capacitive Coupled Device

    • D. 

      Charged Coupled Device

  • 8. 
    What is the correct setting on a meter for measuring VAC?
    • A. 

      Ohms

    • B. 

      V

    • C. 

      A_ _ _

    • D. 

      V_ _ _

  • 9. 
    A blown fuse in a power supply usually indicates:
    • A. 

      Inadequate voltage

    • B. 

      Too much resistance

    • C. 

      Too much current is being drawn

    • D. 

      The poser supply is too large

  • 10. 
    GSM and CDMA are two types of: 
    • A. 

      Two-way radio mesh networks

    • B. 

      Cellular networks

    • C. 

      Public-switched telephone networks

    • D. 

      Internet networks

  • 11. 
    What is the total current of the circuit shown above? (Table not shown here)
    • A. 

      0.125A

    • B. 

      1.25A

    • C. 

      1.58A

    • D. 

      7.58A

    • E. 

      Need the table to better answer this question

  • 12. 
    What type of network address is needed to remotely view a NVR or DVR on a long term basis?
    • A. 

      Media Access Control

    • B. 

      Dynamic Host Configuration Protocol

    • C. 

      Static

    • D. 

      Dymanic

  • 13. 
    What does WDR stand for?
    • A. 

      Wide Dynamic Range

    • B. 

      Wide Distance Reading

    • C. 

      Wide Dynamic Resolution

    • D. 

      Wide Distance Resolution

  • 14. 
    What measurement is needed to determine focal length?
    • A. 

      IR cut filter rating

    • B. 

      Operating voltage of the camera

    • C. 

      Electronic iris lens size

    • D. 

      Distance from the camera to the desired view

  • 15. 
    If a conflict exists between adopted references, the reference that applies shall be the one:
    • A. 

      That is adopted by the OSFM

    • B. 

      With the more stringent standard

    • C. 

      That is adopted by the local jurisdiction

    • D. 

      Used by the AHJ

  • 16. 
    In video surveillance systems, RS485 is commonly used for:
    • A. 

      Displaying images on a remote monitor

    • B. 

      Controlling PTZ actions

    • C. 

      Connecting video from a network camera

    • D. 

      Transmitting images over distances greater than 3000’

  • 17. 
    How many trainees per job site can work under the supervision of a licensed technician?
    • A. 

      Two

    • B. 

      Three

    • C. 

      Four

    • D. 

      Five

  • 18. 
    Low voltage wiring installations must:
    • A. 

      Comply with NFPA 70

    • B. 

      Use D-rings to secure cable

    • C. 

      Comply with manufacturer’s recommendations

    • D. 

      Use jacketed, shielded cable

  • 19. 
    According to NFPA 70, direct buried cables must be:
    • A. 

      Temperature rated

    • B. 

      Arranged so as to prevent damage when the ground settles

    • C. 

      Armored and jacketed

    • D. 

      Protected from animals that burrow underground

  • 20. 
    A technician experiences sudden weakness on the right side of her body and is having trouble speaking and understanding simple statements. What is the likely cause of her symptoms?
    • A. 

      Dehydration

    • B. 

      Stroke

    • C. 

      Low blood sugar

    • D. 

      High blood sugar

  • 21. 
    If a system draws 500mA, approximately how long will a 7Ah battery last?
    • A. 

      14 minutes

    • B. 

      140 minutes

    • C. 

      14 hours

    • D. 

      140 hours

  • 22. 
    Any physical assault, threatening behavior, or verbal abuse that occurs in an employment setting is called:
    • A. 

      Bullying

    • B. 

      Occupational battery

    • C. 

      Workplace violence

    • D. 

      Harassment

  • 23. 
    0.0500A equals:
    • A. 

      1.5mA

    • B. 

      5A

    • C. 

      50A

    • D. 

      500A

  • 24. 
    When measuring current draw in a circuit, meter leads must be placed:
    • A. 

      In parallel with the circuit with power removed from the circuit

    • B. 

      In series with the circuit with power removed from the circuit

    • C. 

      In series with the circuit with the circuit intact

    • D. 

      In parallel with the circuit with the circuit intact

  • 25. 
    What shortcut calculation is used to approximate the total resistance of a circuit that includes several identical devices wired in parallel?
    • A. 

      Divide the source voltage by the resistance of one of the devices

    • B. 

      Multiply the source voltage by the resistance of one of the devices

    • C. 

      Find the resistance of one of the devices, then divide that by the number of devices in the circuit

    • D. 

      Find the resistance of one of the devices, then multiply that by the number of devices in the circuit

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