ELECTRICIAN`S MATE Quiz 04

Card Set Information

Author:
david11090
ID:
232190
Filename:
ELECTRICIAN`S MATE Quiz 04
Updated:
2013-08-31 19:21:48
Tags:
ELECTRICIAN`S MATE Quiz 04
Folders:

Description:
ELECTRICIAN`S MATE Quiz 04
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user david11090 on FreezingBlue Flashcards. What would you like to do?


  1. What information is on the thin marker tape present on most cables and cords under the binder or jacket?



    • 
    Name and location of the manufacturer

    • 
    The year the cord or cable was made

    • 
    The MILSPEC number of the cord or cable

    • 
    All of the above
    All of the above
  2. A cable has been constructed so that it provides added protection, allowing it to function for a longer period under fire conditions. What term describes this cable?



    • 
    Special use cable

    • 
    Armored cable

    • 
    Circuit integrity 

    • 
    Watertight integrity
    Circuit integrity
  3. A radio frequency (RF) cable designated as LSTTRSU-10 in the Cable Comparison Guide has what total number of conductors?



    • 
    80

    • 
    60 

    • 
    20

    • 
    40
    20
  4. Which of the following purposes is/are served by insulation on electric cables and equipment?



    • 
    Isolating current-carrying conductors and conductive structural parts of other circuits or equipment

    • 
    Insulating points of unequal potential from one another

    • 
    Both 1 and 2 above 

    • 
    Protecting the current-carrying conductors from interference from outside electromagnetic sources
    Both 1 and 2 above
  5. If you see the symbol HOF on a cable designation, you know the cable is of what type?



    • 
    Repeated flexing service, experimental

    • 
    Heat and oil resistant, flexible 

    • 
    Heat and oil resistant, nonflexible

    • 
    Heat resistant, synthetic rubber, extra flexible
    Heat and oil resistant, flexible
  6. With the circuit in the condition shown, a ground is detected in the power circuit at point 3. What should be done to isolate the faulty section and locate the ground?



    • 
    Open all breakers shown and use a Megger to test each circuit individually to localize the fault

    • 
    Use a Megger to test the motor leads to find what phase is at fault 

    • 
    Operate the switchboard ground detector to find what phase is grounded

    • 
    Stop each piece of equipment fed from the power distribution panel until the ground disappears
    Use a Megger to test the motor leads to find what phase is at fault
  7. The marking system for power and lighting cables is shown in what sequence?



    • 
    Service, source, and voltage

    • 
    Source, voltage, and service 

    • 
    Voltage, source, and service

    • 
    Source, service, and voltage
    Source, voltage, and service
  8. If you need to find a comprehensive listing of the requirements for installing cables aboard Navy ships, you should refer to what publication?



    • 
    3-M Manual, OPNAVINST 4790.4

    • 
    General Specifications for Ships of the U.S. Navy, NAVSEA S9AAO-AA-SPN-010 

    • 
    Electrician’s Mate, OPNAVINST 4790.4

    • 
    Ship’s Organization and Regulations Manual, OPNAVINST 3120.32
    General Specifications for Ships of the U.S. Navy, NAVSEA S9AAO-AA-SPN-010
  9. When selecting a replacement cable for a particular installation, you must know all EXCEPT which of the following factors?



    • 
    The total connected load current

    • 
    The allowable voltage drop

    • 
    The number of bends in the cable

    • 
    The demand factor
    The number of bends in the cable
  10. When determining the total connected load current for a dc power circuit, you should add what number of watts for each installed receptacle?



    • 
    150

    • 
    100

    • 
    50

    • 
    200
    100
  11. Neutral polarity in a conductor is identified by what color?



    • 
    Black

    • 
    Red

    • 
    Blue

    • 
    White
    white
  12. Which, if any, of the following is the reason for keeping cable runs as short as possible?



    • 
    To lower construction costs

    • 
    To keep attenuation to a minimum 

    • 
    To simplify damage control efforts

    • 
    None of the above
    To keep attenuation to a minimum
  13. In what publication will you find the exact method to use when installing cables?



    • 
    Cable Comparison Guide

    • 
    NAVEDTRA 12164

    • 
    NSTM

    • 
    Electronics Installation and Maintenance Handbook (EIMB)
    Electronics Installation and Maintenance Handbook (EIMB)
  14. What letters would be used to designate an emergency lighting circuit on a cable supplying 115 volts ac to a circuit with a load of 120 watts?



    • 
    C

    • 
    L

    • 
    EP

    • 
    EL
    EL
  15. A circuit marking of (4-168-1)-4P-A(1) indicates that the circuit is supplying (a) what voltages of (b) what type power?



    • 
    (a) 115 V (b) casualty

    • 
    (a) 115 V (b) ship’s service

    • 
    (a) 450 V (b) ship’s service 

    • 
    (a) 450 V (b) casualty
    (a) 450 V (b) ship’s service
  16. You are installing new cables. You should measure the bend radius at what point on the cable?



    • 
    On the innermost portion of the cable 

    • 
    On the top of the cable

    • 
    On the bottom of the cable

    • 
    On the outside of the cable away from the bend
    On the innermost portion of the cable
  17. If you want cable to present a neat appearance and to be traced easily in equipment, you should take what action?



    • 
    Wrap them together with tape

    • 
    Secure them to the side of the equipment with small lengths of wire

    • 
    Lace them together 

    • 
    Twist the wires together
    Lace them together
  18. A cable has been newly installed. What type of meter should you use to test the insulation resistance?



    • 
    A megger

    • 
    A wattmeter

    • 
    An ammeter

    • 
    A voltmeter
    A megger
  19. A cable listed in the Cable Comparison Guide has a 7 at the end of the cable designation. Which of the following is the meaning of the 7?



    • 
    The number of conductors, the number of conductor pairs, and the circular mils

    • 
    The number of conductor pairs and the circular mils of the conductor only

    • 
    Either 1 or 2 above, depending on the type of cable 

    • 
    It has a resistance of 7 per foot
    Either 1 or 2 above, depending on the type of cable
  20. Repeated flexing, general use-cable is categorized by what means?



    • 
    The voltage rating

    • 
    The number of conductors in the cable 

    • 
    The current rating

    • 
    The ambient temperature rating
    The number of conductors in the cable
  21. Before choosing the size of cable to use in a circuit installation, what information is necessary for you to know?



    • 
    The total connected load current, the demand factor, and the allowable voltage drop 

    • 
    The ambient temperature, the total connected load current, and the demand factor

    • 
    The demand factor, the total connected load current, and the voltage of the circuit

    • 
    The total connected load current, the power factor, and the allowable voltage drop
    The total connected load current, the demand factor, and the allowable voltage drop
  22. What action should you take before you clamp a solder-type terminal to a conductor?



    • 
    Twist the strands tightly and solder them only

    • 
    Twist the strands tightly only

    • 
    Untwist and tin the strands

    • 
    Twist the strands tightly, solder them, and tin the terminal board
    Twist the strands tightly, solder them, and tin the terminal board
  23. The designation of a nonflexing service cable is LSDHOF-400. What does (a) the letter D and (b) the number 400 indicate?



    • 
    (a) Two conductors (b) approximate cross-sectional area of a single conductor expressed in thousands of circular mills

    • 
    (a) Two conductors (b) number of strands per conductor

    • 
    (a) Degaussing (b) number of strands per conductor

    • 
    (a) Degaussing (b) approximate cross-sectional area of a single conductor expressed in thousands of circular mills
    (a) Two conductors (b) approximate cross-sectional area of a single conductor expressed in thousands of circular mills
  24. What is the primary purpose of cable maintenance?



    • 
    To preserve the insulation resistance

    • 
    To prevent damage to the cables

    • 
    To keep the wireways clean and free of dust

    • 
    To prevent loose connections
    To preserve the insulation resistance
  25. A cable marked as (1-120-2)-24-C(2) indicates that the circuit is supplying what maximum voltage?



    • 
    220 V

    • 
    12 V

    • 
    24 V

    • 
    120 V
    120 V

What would you like to do?

Home > Flashcards > Print Preview