RCDD V15 Exam | Questions with 100% Correct
Answers | Verified | Latest Update 2026
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Terms in this set (429)
electric conductor carries charge 1-3
annealed copper 100% conductivity (others less) 1-3
solid conductors (advantages) less cost, easier termination, better transmission,
less resistance 1-4
stranded conductors (advantages) more flexible, longer flex life, less damage during
crimp terminations 1-4
AWG accepted in North America and worldwide 1-5
PVC ISP 1-6
PE OSP 1-6
Teflon Du Pont 1-6
dielectric measures max voltage 1-8
pair twists counter clock wise 2" and 6" 1-9
, tight twisting cat5e, cat6, cat6a and higher. Used in voice + low
voltage freq data cables 1-9
emi energy radiated from electric/equipment 1-10
high temps exterior walls, ceilings, high levels of POE,
mechanical rooms 1-10
solid metal wall tube (conduit) best possible shield, low resistance 1-14
drain wires grounding support, longitudinally 1-16
analog signals signal in form of wave, uses vibrations 1-17
Hertz standard unit of frequency measurement 1-18
Hertz (human, phone) humans hear 20Hz -20,000Hz, telephones 300Hz-
3400Hz 1-18
sinusoidal signals Joseph Fourier 1-20
receivers converts electrical waveform to reproduction of
original sound 1-23
telephone line impedance 600ohms private line, 900 ohms CO switching 1-24
telephone echo speed of light 186000 miles/second, slower in
cables - .56c - .74c 1-24
IP Telephony (mission critical data min cat5e/class D, prefer cat6/class E or higher 1-29
network)
Answers | Verified | Latest Update 2026
Save
Terms in this set (429)
electric conductor carries charge 1-3
annealed copper 100% conductivity (others less) 1-3
solid conductors (advantages) less cost, easier termination, better transmission,
less resistance 1-4
stranded conductors (advantages) more flexible, longer flex life, less damage during
crimp terminations 1-4
AWG accepted in North America and worldwide 1-5
PVC ISP 1-6
PE OSP 1-6
Teflon Du Pont 1-6
dielectric measures max voltage 1-8
pair twists counter clock wise 2" and 6" 1-9
, tight twisting cat5e, cat6, cat6a and higher. Used in voice + low
voltage freq data cables 1-9
emi energy radiated from electric/equipment 1-10
high temps exterior walls, ceilings, high levels of POE,
mechanical rooms 1-10
solid metal wall tube (conduit) best possible shield, low resistance 1-14
drain wires grounding support, longitudinally 1-16
analog signals signal in form of wave, uses vibrations 1-17
Hertz standard unit of frequency measurement 1-18
Hertz (human, phone) humans hear 20Hz -20,000Hz, telephones 300Hz-
3400Hz 1-18
sinusoidal signals Joseph Fourier 1-20
receivers converts electrical waveform to reproduction of
original sound 1-23
telephone line impedance 600ohms private line, 900 ohms CO switching 1-24
telephone echo speed of light 186000 miles/second, slower in
cables - .56c - .74c 1-24
IP Telephony (mission critical data min cat5e/class D, prefer cat6/class E or higher 1-29
network)
