ES3 NM QUESTIONS WITH DETAILED VERIFIED AND 100%
ACCURATE ANSWERS
Wiring System Correct Answers Is a form of electrical circuit.
Electrical circuit Correct Answers Is comprised of an energy source,
energy transfer medium and a load.
Energy Transfer Medium Correct Answers copper wire, fiber optic
cables and air in the case of radiated energy
Load Correct Answers receives the transferred energy such as resistors,
lights, speakers, motors, etc.
EMF (electromotive force) Correct Answers The force that moves
electrical energy.
Current or Current Flow Correct Answers The movement of electrons
through a circuit that is caused by the electromotive force or voltage
applied to the circuit.
Inductance (L) Correct Answers Unit is the henry. It is the property of a
circuit that causes an opposition to any change of current within the
circuit. As electrons flow, a magnetic field is produced. The magnetic
force induces a change in voltage.
, Grounding Correct Answers assures transmission of electrical signals
without interference from electromagnetic radiation from other
transmission lines and equipment. This interference, called crosstalk,
can happen from adjacent lines, motors, PCs, lights and other devices.
Grounding electrode Correct Answers Connection to the electrode
should be less than 1 ft below the surface of the solid and the electrode
should extend at least 10 ft below ground.
Ground Loop Correct Answers Causes a current to flow in the low
resistance of the shield resulting in electromagnetic waves that are
picked up as noise through the wire.
66 block Correct Answers A punchdown block that terminates 22 to 26
AWG solid copper wire. The 25 pair standard non split 66 block
contains 50 rows.
110 block Correct Answers To terminate on-premises wiring in
structured cabling. IDC or Insulation displacement contact connector is
used to terminate the twisted pair. The 110 allows for a much higher
density of terminations, less crosstalk and higher bandwidth data.
UF Correct Answers Cable can be buried into the ground. Not approved
for commercial use in NM. 340.10
ACCURATE ANSWERS
Wiring System Correct Answers Is a form of electrical circuit.
Electrical circuit Correct Answers Is comprised of an energy source,
energy transfer medium and a load.
Energy Transfer Medium Correct Answers copper wire, fiber optic
cables and air in the case of radiated energy
Load Correct Answers receives the transferred energy such as resistors,
lights, speakers, motors, etc.
EMF (electromotive force) Correct Answers The force that moves
electrical energy.
Current or Current Flow Correct Answers The movement of electrons
through a circuit that is caused by the electromotive force or voltage
applied to the circuit.
Inductance (L) Correct Answers Unit is the henry. It is the property of a
circuit that causes an opposition to any change of current within the
circuit. As electrons flow, a magnetic field is produced. The magnetic
force induces a change in voltage.
, Grounding Correct Answers assures transmission of electrical signals
without interference from electromagnetic radiation from other
transmission lines and equipment. This interference, called crosstalk,
can happen from adjacent lines, motors, PCs, lights and other devices.
Grounding electrode Correct Answers Connection to the electrode
should be less than 1 ft below the surface of the solid and the electrode
should extend at least 10 ft below ground.
Ground Loop Correct Answers Causes a current to flow in the low
resistance of the shield resulting in electromagnetic waves that are
picked up as noise through the wire.
66 block Correct Answers A punchdown block that terminates 22 to 26
AWG solid copper wire. The 25 pair standard non split 66 block
contains 50 rows.
110 block Correct Answers To terminate on-premises wiring in
structured cabling. IDC or Insulation displacement contact connector is
used to terminate the twisted pair. The 110 allows for a much higher
density of terminations, less crosstalk and higher bandwidth data.
UF Correct Answers Cable can be buried into the ground. Not approved
for commercial use in NM. 340.10
