RCDD 12th Edition Chapter 1 Exam
2025 Questions and Answers 100%
pass
Elementry knowledge of transmission = - ✔✔Electronics, electrical concepts, volts,
AMP's and ohm's.
An electrical conductor is = - ✔✔Any material that can carry a electric charge from
one point to another.
Common conductors are = - ✔✔Copper, Copper-covered steel, High strength alloys,
Aluminum.
Silver and gold are good conductors BUT = - ✔✔Cost too much.
Annealed copper = - ✔✔100%
Alloying = - ✔✔Adverse effect
corrosion resistance = - ✔✔High-strength alloys = poor
Oxidation resistance = - ✔✔Aluminum = poor
Advantages of solid conductors = - ✔✔- Less costly -[less complex termination
systems]
- Better transmission performance at high frequencies.
Advantages of stranded conductors = - ✔✔- More flexible -[Longer flex life]
- Less susceptible to damage during crimp termination process.
COPYRIGHT © 2025 BY EMILLY CHARLOTTE, ALL RIGHTS RESERVED 1
, Not advantage of stranded = - ✔✔Better transmission
AWG = - ✔✔Accepted in North America
AWG in power distribution = - ✔✔World wide
Insulation/dielectric used to isolate current by preventing direct contact between = -
✔✔- Conductors
- A conductor and its environment
Lower dielectric constant and dissipation factor = - ✔✔Have better transmission
performance including lower attenuation characteristics and lower capacitance
PVC = - ✔✔Indoor
PE = - ✔✔Outdoor
Teflon = - ✔✔Du Pont
FEP = - ✔✔Fluorinated ethylene propylene
FEP Dielectric constant = - ✔✔2.1
FEP Dissipation Factor = - ✔✔0.0005
Dielectric strength = - ✔✔Measures maximum voltage
Dissipation factor = - ✔✔The relative power loss in the insulation due to molecular
excitement and subsequent kinetic and thermal energy loss
Insulation resistance (IR) = - ✔✔The insulation's ability to resist the flow of current
through it.
Insulation resistance (IR) = - ✔✔For inside conductors, IR is typically expressed in
mega ohm- Kilometer(Km) or mega ohm 1000(ft)
Twisted pair = - ✔✔Minimizes cross talk
Pair to pair capacitance = - ✔✔Electric field
COPYRIGHT © 2025 BY EMILLY CHARLOTTE, ALL RIGHTS RESERVED 2
2025 Questions and Answers 100%
pass
Elementry knowledge of transmission = - ✔✔Electronics, electrical concepts, volts,
AMP's and ohm's.
An electrical conductor is = - ✔✔Any material that can carry a electric charge from
one point to another.
Common conductors are = - ✔✔Copper, Copper-covered steel, High strength alloys,
Aluminum.
Silver and gold are good conductors BUT = - ✔✔Cost too much.
Annealed copper = - ✔✔100%
Alloying = - ✔✔Adverse effect
corrosion resistance = - ✔✔High-strength alloys = poor
Oxidation resistance = - ✔✔Aluminum = poor
Advantages of solid conductors = - ✔✔- Less costly -[less complex termination
systems]
- Better transmission performance at high frequencies.
Advantages of stranded conductors = - ✔✔- More flexible -[Longer flex life]
- Less susceptible to damage during crimp termination process.
COPYRIGHT © 2025 BY EMILLY CHARLOTTE, ALL RIGHTS RESERVED 1
, Not advantage of stranded = - ✔✔Better transmission
AWG = - ✔✔Accepted in North America
AWG in power distribution = - ✔✔World wide
Insulation/dielectric used to isolate current by preventing direct contact between = -
✔✔- Conductors
- A conductor and its environment
Lower dielectric constant and dissipation factor = - ✔✔Have better transmission
performance including lower attenuation characteristics and lower capacitance
PVC = - ✔✔Indoor
PE = - ✔✔Outdoor
Teflon = - ✔✔Du Pont
FEP = - ✔✔Fluorinated ethylene propylene
FEP Dielectric constant = - ✔✔2.1
FEP Dissipation Factor = - ✔✔0.0005
Dielectric strength = - ✔✔Measures maximum voltage
Dissipation factor = - ✔✔The relative power loss in the insulation due to molecular
excitement and subsequent kinetic and thermal energy loss
Insulation resistance (IR) = - ✔✔The insulation's ability to resist the flow of current
through it.
Insulation resistance (IR) = - ✔✔For inside conductors, IR is typically expressed in
mega ohm- Kilometer(Km) or mega ohm 1000(ft)
Twisted pair = - ✔✔Minimizes cross talk
Pair to pair capacitance = - ✔✔Electric field
COPYRIGHT © 2025 BY EMILLY CHARLOTTE, ALL RIGHTS RESERVED 2
