3-L-080: Installation Codes & Procedures
3-80L1:
What color is the binder for pairs 51-75 in a 100-pair cable?
Green
Red
Blue
Black
3-80L2:
What is most important when routing cables in a mobile unit?
Assuring radio or electronics cables do not interfere with the normal operation of the vehicle.
That cables be cut to the exact length.
Assuring accessibility of the radio for servicing from outside the vehicle.
Assuring cables are concealed under floor mats or carpeting.
3-80L3:
Why should you not use white or translucent plastic tie wraps on a radio tower?
UV radiation from the Sun deteriorates the plastic very quickly.
White tie wraps are not FAA approved.
The white color attracts wasps
The black tie wraps may cause electrolysis.
3-80L4:
What is the 6th pair color code in a 25 pair switchboard cable as is found in building telecommunications interconnections?
Red/Blue, Blue/Red.
Blue/Green, Green/Blue.
Red/Blue, White/Violet.
White/Slate, Slate/White.
3-80L5:
What tolerance off of plumb should a single base station radio rack be installed?
Just inside the bubble on a level.
No tolerance allowed.
Just outside the bubble on a level.
All the way to one end.
3-80L6:
What type of wire would connect an SSB automatic tuner to an insulated backstay?
GTO-15 high-voltage cable.
RG8U.
RG213.
16-gauge two-conductor.
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Color key:
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● = Unseen
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● = Weak
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● = Review
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● = Learned
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● = Incorrect answer
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